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20 Best 30 Amp Tankless Water Heater (2023 Update)
Are you looking for the Best 30 Amp Tankless Water Heater? If so, you’ve come to the right place.
Choosing the Best 30 Amp Tankless Water Heater can be difficult as there are so many considerations, such as A. O. Smith, Eccotemp, Eemax, Hubbell, Rheem, Rinnai, Stiebel Eltron, Amazon.com, Amazon.com – Seller. We have done a lot of research to find the Top 20 Best 30 Amp Tankless Water Heater available.
The average cost is $565.52. Sold comparable range in price from a low of $216.32 to a high of $1955.08.
Based on the research we did, we think Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater is the best overall. Read on for the rest of the great options and our buying guide, where you can find all the information you need to know before making an informed purchase.
20 Best 30 Amp Tankless Water Heater (20 Sellers)
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Reviewers Noted:
Heats quickly . Easy to set up . Compact . Ease of use . Craftsmanship
Features:
- On-demand, continuous and unlimited supply of hot water
- Sleek design saves space and no venting required
- Electronic switch activated for virtually silent operation. phase- single 60 hz. voltage- 208 v. wattage- 27 kw
Reviewers Noted:
Search . Compact . Easy to set up . Heats quickly . Craftsmanship
Features:
- Compact design: saves space
- Never run out of hot water
- Up to twice the lifespan of most tanks
Reviewers Noted:
Compact . Ease of setup . Craftsmanship
Features:
- Smart microprocessor technology unique to tempra water heaters delivers steady water temperature even when flow rate vary as taps are adjusted
- Self-modulating technology saves energy by adjusting electrical usage
- Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for you
Reviewers Noted:
Heating speed . Craftsmanship . Ease of setup
Features:
- External adjustable digital thermostatic control with led display (+/1 degree accuracy
- Durable copper immersion two heating elements, field serviceable
- Simple installation
Reviewers Noted:
Compact . Heats quickly . Ease of use
Features:
- Can serve up to 6 applications (4 showers and 2 faucets in in warm to hot climates).
- Reference the performance guide to confirm this unit will provide sufficient hot water to meet your need.
- Requires 3 x 40a double-pole breakers, 3 x 8/2 awg wires, 240v.
Reviewers Noted:
Search . Compact . Craftsmanship . Heats quickly . Attractive
Features:
- Sleek and compact design with digital output temperature display
- Ecosmart tankless water heaters are 99.8-percent energy efficient
- Manufactured in united states
$589.00
4.7
Reviewers Noted:
Heats quickly . Easy to set up . Compact . Ease of use . Craftsmanship
Features:
- Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for you
- Requires 240 volt or 208 volt electric service, and has a maximum output of 28,800 watts at 240 volts or 21,600 watts at 208 volts
- Supplies endless hot water at a constant and steady temperature from 68 to 140°f (20-60°c) that can be set on the front panel digital display
$269.99
4.6
Reviewers Noted:
Search . Compact . Easy to set up . Easy to use . Well made
Features:
- Provides continuous hot water for ultimate convenience.
- Patented self modulating technology and design.
Reviewers Noted:
Heating speed . Craftsmanship
Features:
- External digital display, shows outlet temperature
- Durable copper immersion single heating element, field serviceable
- Simple installation: 3 foot electric cable included; bottom 1/2 inch npt water connections
Reviewers Noted:
Craftsmanship
Features:
- External digital thermostatic control with led display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable copper immersion two heating elements, field serviceable
Reviewers Noted:
Easy to set up . Heating speed . Size
Features:
- Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
- Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
- Easy to maintain: durable, easy-to-replace heating elements
$579.99
4.4
Reviewers Noted:
Search . Compact . Poorly made . Easy to set up . Attractive
Features:
- Provides continuous hot water for ultimate convenience
- Patented self modulating technology and design
- Designed with standard and reliable easy to service elements and hea
$679.00
4.7
Reviewers Noted:
Heating speed . Ease of setup . Craftsmanship
Features:
- Proven reliability from the world leader
- Unlimited supply of hot water
- Sleek design saves space
$459.00
4.3
Reviewers Noted:
Easy to set up . Heating speed . Size
Features:
- Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
- Space savings: small compact design fits perfectly in tight places like under cabinets and sinks
- Easy to maintain: durable easy-to-replace heating elements
Reviewers Noted:
Search . Easy to set up . Compact . Craftsmanship . Ease of use
Features:
- German patented technology
- Digital panel to control output temperature
- The heating element does not get in touch with water avoiding sediments to build up
Reviewers Noted:
Search . Compact . Heats quickly . Easy to set up . Well made
Features:
- Endless hot water
- Space savings
- Energy saving, ul compliant & etl lead free certified
Reviewers Noted:
Heating speed . Ease of use
Features:
- Exclusive water savings technology conserving up to 1, 100 gallons per year
- 199, 000 btu (gas consumed per hour)
- Instant hot water
Reviewers Noted:
Craftsmanship . Noise level
Features:
- Durable, easily replaceable heating elements
- Copper heat exchanger with brass top
- Digital temperature display
Reviewers Noted:
Craftsmanship
Features:
- Instant, consistent and endless hot water
- Compact, resistant and stylish with digital temperature control in increments of 1° ranging from 80°f to 140°f
- Copper immersion heating elements with brass top increase durability and are threaded for easy replacement
Reviewers Noted:
Size
Features:
- Unlimited hot water on demand – tankless electric water heater provides instant, continuous water flow
- Point of use – installs at the point of use, for hot water where you need it
- Energy efficient – conserves energy and water by only using energy when hot water is in use, saving you money
1. Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater
Product Details:
Powerful output, compact design, and remarkable energy-savings. tempra plus models feature advanced flow control, patented in germany and exclusive to stiebel eltron tankless heaters, that automatically maintains desired hot water temperature by slightly reducing flow when necessary. self-modulating technology ensures the least amount of energy is used to heat the water. a tempra 36 plus provides hot water at a constant temperature for up to 3 or 4 bathrooms in warm climates, or 3 bathrooms in cool climates. see sizing guide to determine the best model for you. stiebel eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. our engineering and manufacturing tradition of excellence means you can depend on our products to perform at the highest standards of comfort and reliability.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 36,000 |
| Amps – Water Heaters | 150 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.77 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 70 Degrees to 140 Degrees F |
| Temp. Rise @ 1.5 GPM | 92 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 90 Degrees F |
| Pressure Range | 30 to 150 psi |
| Mounting | Any Direction |
| Standards | ETL Listed, WQA |
| Default Temperature | 140 Degrees F |
| Temp. Rise @ 6.0 GPM | 41 Degrees F |
| Wire Size | 6/2 AWG |
| Water Connection | 3/4" NPT |
| Temp. Rise @ 0.5 GPM | 92 Degrees F |
| NEMA Rating | 1 |
| Max. Flow Rate | 1 gpm |
| Elements | Copper Sheathed Housed in Cylinder |
| Market | Commercial, Residential |
| Current | 44 A, 50 A |
| Cord Conductor Gauge | 8/2 AWG Wire |
| Mounting Type | Wall Mounting |
| Minimum Flow Activation | 0.77 gpm |
| Overall Dimensions – H x W x D | 14.5 in x 16.63 in x 4.63 in |
| Minimum Water Pressure | 30 psi |
| Mounting Orientation | Horizontal, Vertical |
| Temperature Range | 70 Degrees F to 140 Degrees F |
| Cold Inlet Size | 3/4 in |
| Operating Voltage | 208/240V AC |
| Environment | Indoor |
| Element Material | Copper |
| Maximum Flow Rate | 1 gpm |
| Adjustable Thermostat | Yes |
| Maximum Water Pressure | 150 psi |
| Power Consumption | 36,000 W |
| Country of Origin (subject to change) | Germany |
Reviews:
I was hoping for so much from this product. Yesterday I took such a hot shower during lunch and then that evening when I gave my daughter a bath, it only came out lukewarm. My shower today was borderline cold. Tomorrow it may be hot again. I live in Northern VA and would not recommend this product. It ruins the experience of our new bathroom remodel. There's nothing worse than remodeling your bathroom to your dream bathroom and hearing your wife say, well that bath wasn't relaxing since she couldn't get hot water.ChristianMC
We purchased this unit about 1 month ago, replacing a Natural Gas water heater with 40g tank. The savings in space, and the removal of the fossil fuel device were our key drivers for this purchase. Our Electric bill has increased significantly, by about 50%, but because we never run out of hot water, showers tend to be longer. And now we can actually fill our tub with hot water without boiling extra water on the stove, so this also has increased our usage. There is an issue with temperature stability, when a toilet is flushed or other demand for water is turned on, the temperature swing is very noticeable. I have added a shower temp gauge, and have seen the temp drop from 42c to 39c when a toilet is flushed, it takes about 10-15 seconds to recover, and likewise, when the water demand drops, the temp goes up from 42c to 44.5c for several seconds. This shower valve has a pressure regulated flow control, so changes in the water will take some time to correct. Pros: Save on Space, endless hot water, retired fossil fuel appliance, not storing heated water we aren't using. Cons: High electricity costs, temperature changes when pressure changes for several secondsChris
Don't buy it…it's terrible,I bought the tempra24 plus from home depot, I installed all specified wires and circuits so it would work properly and efficiently but this this is horrible… my electric and water bill did go down even more than I had Anticipated but hate it…No constant temperature what so ever. I'm getting it removed and getting one installed by a professional.. the tempraplus was a waste of moneyBrian Lackie
2. Rinnai V94in Internal Natural Gas Tankless Water Heater
Product Details:
Welcome to ultimate efficiency. with technology that operates only when hot water is needed, super-efficient heating coils, no pilot light and no storage tank to heat and reheat water, you save on energy and utility costs. in fact, rinnai tankless water heaters use up to 40% less energy than a traditional tank water heater. plus, with premium technology, increased energy efficiency, an improved home energy rating system (hers) index score and optimized leed eligibility, our tankless solutions can increase your home's value. you can even qualify for energy efficiency rebates and tax credits. it's a smart investment for now and the future.
Specifications:
| Weight | 57.45 oz |
Reviews:
Installed for roughly 3-months and have not experienced any problems. This water heater performs extremely well in our 1,200 s.f. home with 2 full bathrooms. Hot water is very reliable and flow capacity is perfect. Installation is a little complex. But I was able to do it myself by conducting proper research and viewing videos online. Exhaust duct required is very specific. So plan the proper vent kit according to your specific installation (roof or wall venting). You must use the correct exhaust kit for your model and type.JammyK2060
I'm writing a point form review because I don't want to spend any more time on this very average water heater. We have two installed in different areas of our house and both behave identically, so it's not a "lemon" problem. 1. They both make a loud groaning noise when they fire up. I've tried everything – including increasing the gas pipe diameter and changing every setting I can – and still they groan. We may have to move one unit because it is disturbing a neighbor. 2. We wanted to use these as solar water backups. Once the inlet water falls below a certain temperature, they should kick in and maintain hot water. Nope; they don't fire up unless you increase the flow rate to a ridiculous level, eg full hot in the shower. Then you have to wait until they start and deliver hot water. Yes, flow rates during normal usage – eg, shower – are well within spec . This is the real deal-breaker. A fundamental design fault. Did anyone at Rinnai ever test these things? 3. They do NOT come with a controller. We knew this but figured we'd buy one, use it to set each unit up and then disconnect it. Nope; if you disconnect the controller, the unit reverts to non-controller settings. Dumb. 4. Totally agree that the manual is a joke. It's as if it was written only so that someone could tick a box and say, "Comes with a manual". (We also have two Rinnai FC810N vent free wall heaters and they also have inept manuals as well as having some crazy-stupid design faults such as a child proof lock that unlocks if the power goes out!) 5: Rinnai service is non-existent. They just say to contact a registered installer. There is ZERO support in any way for these things. 6. The mechanical build quality is quite high, very solid and good machine tolerances and finish. It's just a pity that the things don't work very well. In short, I would never buy another Rinnai product ever again. And this is after thinking that they were a good, solid Japanese brand I could depend on. Nope!Steve C
We decided to try a tankless water heater when our traditional unit stopped working, and chose Rinnai based on the great ratings and advice from a friend who performs installations. It's been installed for about 2 months. We've been thrilled with our purchase! I like that the unit is small and is mounted way up on the wall. Our utility room seems much larger without the big traditional water heater. It's pretty quiet when it's running. It takes a few seconds for the hot water to reach the tap, but we've adjusted to that. Initially the unit couldn't be set higher than 120 degrees F, but I was able to open the cover and flip the switch so I could set it higher. We've never run out of hot water since we installed the unit. I would certainly recommend a Rinnai unit. It's solidly built and a very good value.HuskyMom4949
3. Stiebel Eltron Tempra 24 Trend Whole House Electric Tankless Water Heater
Product Details:
The tempra 24 trend is capable of providing consistently hot water to several fixtures at once while reducing energy usage. 240/208v – 24 kw copper tankless electric w. digital thermostat tempra trend models feature a memory preset that makes it easy to return to your ideal water temperature at the push of a button. with the tempra trend, you’ll enjoy endless hot water, unrivaled efficiency, and the utmost in comfort. a stiebel eltron tempra responds directly to your demand for hot water without interruption. showers will always be hot, even if there are several taken in a row and they run long. every tempra has self-modulation. self-modulation ensures that only the least amount of energy is used at all times.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 24,000 |
| Amps – Water Heaters | 100 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.50 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 70 Degrees to 140 Degrees F |
| Max. Flow Rate | 1 gpm |
| Water Connection | 3/4" NPT |
| Mounting | Any Direction |
| Temp. Rise @ 0.5 GPM | 92 Degrees F |
| Elements | Copper Sheathed Housed in Cylinder |
| Default Temperature | 140 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 65.6 Degrees F |
| Standards | ETL Listed, WQA |
| Temp. Rise @ 1.5 GPM | 92 Degrees F |
| Wire Size | 6/2 AWG |
| Pressure Range | 30 to 150 psi |
| Temp. Rise @ 6.0 GPM | 27 Degrees F |
| NEMA Rating | 1 |
| Mounting Orientation | Horizontal, Vertical |
| Element Material | Copper |
| Cold Inlet Size | 3/4 in |
| Temperature Range | 70 Degrees F to 140 Degrees F |
| Operating Voltage | 208/240V AC |
| Mounting Type | Wall Mounting |
| Overall Dimensions – H x W x D | 14.5 in x 16.63 in x 4.63 in |
| Cord Conductor Gauge | 8/2 AWG Wire |
| Market | Commercial, Residential |
| Minimum Water Pressure | 30 psi |
| Current | 44 A, 50 A |
| Adjustable Thermostat | Yes |
| Environment | Indoor |
| Maximum Flow Rate | 1 gpm |
| Maximum Water Pressure | 150 psi |
| Minimum Flow Activation | 0.5 gpm |
| Power Consumption | 24,000 W |
| Country of Origin (subject to change) | Germany |
Reviews:
A year ago we purchased a new home. I asked the contractor to install a tankless water heater. He installed an electric A O Smith tank unit instead and claimed that he researched tankless units and that they could not keep up with the volume of hot water our three person family would need. We live in a community that provides treated well water. After a year our hot water smelled strongly of sulfer. We were told that the diode in our tank would have to be changed either with a very expensive diode or with the standard one but done annually. Unfortunately A O Smith installs the diode's with a robot or a person that is determined that it would never come out. Removal attempts turned the bolt into a perfectly round piece. It is sunk 6" into the tank which prevents use of a pipe wrench. A new water heater was required or we had to live with the smell. I did my own research and determined that this 2400w tankless unit should provide all of the hot water our family would ever need. I purchased it from Zoro on a Friday and it was on our porch on Sunday when we got home from church. I spent the day replacing the unit. The tankless works great. We are very pleased with it. We have a large tub in our master bath that would only fill half way before the water in the 40 gallon tank model turned cold. The tankless unit stays hot until you turn it off.j The bonus is this takes up only a fraction of the room that the old unit required.Guest
Although this seems like the way to go, I ordered this figuring it would be perfect for the Basement suite that I'm putting in. Ordered it, my contractor took a look at it and informed me that most serviced residential homes do not have enough amps going to them to be able to run this as well as everything else in your home, for a commercial lot it would be fine. That the service to the home would need to be upgraded, which is an even bigger expense. So beware as to whether you're able to use this.frustrated renos
Works as expected and takes up very little room. Company very responsive to questions as well – a plus for sure.Happy Customer
4. Rheem Rtex-08 Electric Tankless Water Heater,240v
Product Details:
The rheem rtex – 08 is tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications. for easy use, it has an e xternal adjustable digital thermostatic control with led display. the controller increments at 1°f ranging from 80°f to 140°f. the rheem rtex 8 is the replacement model for the rheem rte 9.
Specifications:
| Weight | 119.2 oz |
Reviews:
I've got a large house and more children than most. This unit produces sufficient hot water to run several showers at once and never run out, which is the main point. I'm very pleased with this unit. There's one oddity however; When first starting-up, the water temperature gradually increases until the set-point arrives at the delivery spot and holds there for a few moments, then the temperature wanes to lukewarm/cool, then back to specified temperature. This can be quite a jolt to the system if the user isn't prepared 🙂 But the change is gradual enough to get out of the way in time. This is annoying. The display alternates between my chosen set point "130 F" and "E5", which I assume is an error code. But none of the online documentation provides an error code key from which to ascertain the issue. I have two three-way valves in my installation which allows me to run my system in tankless only, tank only, or tankless preheat followed by tank. In the summer I run tankless only, in winter I typically run tankless as preheat and draw from the tank unit.Engineer Dude
i had it professionally installed and its keeps popping a fuse and stops working all the time . i think it finally completely failed after 1 years of use only and 900 later. i home RHEEM will send me replacement as its under warranty. but seems liek its one of the worse ones to have. all bad ratings. i would like to upgrade to a better one.asta
5. Black & Decker 27 Kw 5.3 Gpm Electric Tankless Water Heater
Product Details:
Unlike conventional tank water heaters, which constantly consume energy to keep your water hot 24/7, this state-of-the-art, digital technology will instantly reduce your energy consumption and save you money on energy costs simply by heating water on demand. the unit does not require any gas lines or venting, and the compact design allows you flexibility to install virtually anywhere – in a cabinet, closet, garage, basement, etc. you can be sure to earn some precious space by installing this unit! (important: inlet temps vary by location and seasonality. selecting the right water heater depends on your incoming water temperature, flow rate, and desired output temperature.
Specifications:
| Voltage (Volts) | 240 |
| Bluetooth Compatibility | No |
| Amps Required for Unit Only (Amps) | 112.5 |
| Smart Compatible | No |
| Width (Inches) | 4.53 |
| Point of Use | No |
| Maximum Gallons per Minute | 5.8 |
| Wire Size (Gauge) | 8 |
| Major Appliances Supplied Simultaneously | 5 |
| Wi-Fi Compatibility | No |
| Weight (lbs.) | 15 |
| Hybrid Heat Pump Technology | No |
| Mobile Home Compatible | Yes |
| Commercial/Residential | Commercial/Residential |
| Depth (Inches) | 17.13 |
| Installation Location | Wall mount |
| Height (Inches) | 14.76 |
| Household Amperage Required (Amps) | 120 |
| Power Output (Kilowatts) | 27 |
Reviews:
We loved this unit when first installed. Now 1-1/2 years later, it has been replaced 2x. To be fair, B&D did replace but we had to install a total of 3 times at our cost. It has 3 internal breakers, which when tripped require the cover to be removed. When last replaced by B&D, they said no more warranty. We will not buy another. And yes, we had it hooked up to a water softener and filters.Patti
This heats the water great in the summer time, a little cooler in the winter time when the ground is cooler. Make sure you measure the distance from you furthest shower to you water hear location before purchasing, to ensure that your water heater will heat the water efficiently.Anonymous
6. Ecosmart Eco 36 36kw 240v Electric Tankless Water Heater
Product Details:
Easy to maintain, easy-to-replace heating elements. activation flow is 0. 3 gpm on demand, endless hot water and copper and stainless components designed for efficiency, durability and easy replacement. lifetime for residential use. breaker recommended 4 x 40 amps dp 6 gpm tank less water heater provides on-demand, endless hot water.
Specifications:
| Capacity | 6 Gallons |
| Power Source | Corded Electric |
| Item Dimensions LxWxH | 3.6 x 21 x 17 inches |
| Voltage | 240 Volts |
| Heat Output | 36 Kilowatts |
| Style | ECO 36 |
| Product Dimensions | 3.6 x 21 x 17 inches |
| Country of Origin | USA |
| Is Discontinued By Manufacturer | No |
| Amperage Capacity | 150 Amps |
| Item Package Quantity | 1 |
| Included Components | Rough Plumbing, Water Heaters, water-heaters |
Reviews:
I've had this unit for 3 years and I've learned some things. 1- Saves me about 10% on electric bill 2- Use a salt based water softener before heater. You'll get scale flakes throughout your plumbing system clogging aerators and shower heads and appliances. 3- Perform regular maintenance in the unit. Circulate white vinegar through it at least once per year using hose fittings and a cheap sump pump in a 5 gallon bucket. This will maintain efficiency and performance. 4- Lights flicker while in use. I have many led bulbs in my house and the ones on a dimmer switch flicker and a motion sensor light outside strobes when running hot water. Kind of annoying. Overall good unit, but I wish they would have installed a capacitor to cut down on the harmonics induced back into the electrical system.littlemanmcc
The unit does require 3 double 40amp breakers and will use the power if required. However, my use is typically one service (shower, washer, kitchen stuff) at a time and I measured the amperage at about half of full demand. My water intake temperature ranges from about 50 to 60 degrees. I also measured the water temperature output and it is within 3 degrees of the setting display. When I leave for extended periods I love that I can shut off the system completely with the push of a button. The price is right and the space saving is outstanding. My electric bill in Marshall NC was averaging about $150 per month (all electric house). Now I'm averaging $138. I'll continue to monitor if the savings continue.donshepard
Use at my camp that has high volume low pressure spring water that varies from 35 to 55 degrees. Together with a Wallace booster pump, this water heater works excellent. More than adequate hot water for sink and shower at the same time. The one degree variable setting works very well. Seems to be built well, time will tell. Oh yeah, I also added a water filter before the pump too. Really like this set up very well so far. Definitely do recommend.low_did2
7. Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater
Product Details:
Stiebel eltron tempra 24 plus water heater is compared to a conventional electric tank water heater, a water heater will typically use 15-20% less energy, although savings can be substantially higher depending on usage habits. conventional electric tank water heaters continually store hot water and as a result lose 15-20% of the total energy they consume to the environment around them. this is called standby heat loss.
Specifications:
| Amperage (amps) | 100 A |
| Application Type | Residential |
| Electricity Phase | Single Phase |
| Finish Family | Gray |
| Flow Rate @ 35°F Rise (gallons/min) | 4.68 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 3.64 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 2.98 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 2.52 gal (US)/min |
| Fuel Type | Electric |
| Indoor/Outdoor | Indoor |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.5 |
| Minimum Temperature (F) | 86 °F |
| Number of Elements | 2 |
| Number of Showers | 1-2 |
| Pack Size | 1 |
| Required Volt Connection | 240 volt |
| Uniform Energy Factor | 0 |
| Water Heater Features | Overheat Protection,Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Certified |
| Product Width (in.) | 16.625 in |
| Water Connection Size (in.) | 3/4 in NPT |
Reviews:
I was hoping for so much from this product. Yesterday I took such a hot shower during lunch and then that evening when I gave my daughter a bath, it only came out lukewarm. My shower today was borderline cold. Tomorrow it may be hot again. I live in Northern VA and would not recommend this product. It ruins the experience of our new bathroom remodel. There's nothing worse than remodeling your bathroom to your dream bathroom and hearing your wife say, well that bath wasn't relaxing since she couldn't get hot water.ChristianMC
We purchased this unit about 1 month ago, replacing a Natural Gas water heater with 40g tank. The savings in space, and the removal of the fossil fuel device were our key drivers for this purchase. Our Electric bill has increased significantly, by about 50%, but because we never run out of hot water, showers tend to be longer. And now we can actually fill our tub with hot water without boiling extra water on the stove, so this also has increased our usage. There is an issue with temperature stability, when a toilet is flushed or other demand for water is turned on, the temperature swing is very noticeable. I have added a shower temp gauge, and have seen the temp drop from 42c to 39c when a toilet is flushed, it takes about 10-15 seconds to recover, and likewise, when the water demand drops, the temp goes up from 42c to 44.5c for several seconds. This shower valve has a pressure regulated flow control, so changes in the water will take some time to correct. Pros: Save on Space, endless hot water, retired fossil fuel appliance, not storing heated water we aren't using. Cons: High electricity costs, temperature changes when pressure changes for several secondsChris
Don't buy it…it's terrible,I bought the tempra24 plus from home depot, I installed all specified wires and circuits so it would work properly and efficiently but this this is horrible… my electric and water bill did go down even more than I had Anticipated but hate it…No constant temperature what so ever. I'm getting it removed and getting one installed by a professional.. the tempraplus was a waste of moneyBrian Lackie
8. Ecosmart Eco 11 Electric Tankless Water Heater
Product Details:
Ecosmart eco 11 is ideal for handwashing in cooler climates and are perfect for a bathroom, small sink or office breakroom. in warmer climates, eco 11 can provide continuous hot water at up to 2.6 gallons per minute, supporting a bathroom shower or kitchen sink. this model has a digital display showing output temperature and can be adjusted in 1-degree increments. ecosmart water heaters are durable, compact and easy to install.
Specifications:
| Assembled Depth (in) | 3.75 in |
| Assembled Height (in) | 12 in |
| Assembled Width (in) | 9.75 in |
| Assembled Weight (lbs) | 7 lbs |
| Item is Shipped at this Packaging Level | Y |
| Packaging Depth | 6.75 IN |
| Packaging Height | 13.5 IN |
| Packaging Width | 10.25 IN |
| Package Weight | 7 |
| Package Weight UOM | LB |
| Net Packaged Quantity | 1 EA |
| Water Heater Style | Tankless |
| Manufacturer Warranty | Limited Lifetime |
| Commercial / Residential | Residential |
| Flow Rate @ 45°F Rise | 1.97 gpm |
| Flow Rate @ 77°F Rise | 1.15 gpm |
| Gas or Electric | Electric |
| Temperature Pressure Relief Valve (TPR) | No |
| Water Connection Size | 1/2" CF |
| Height | 12 in |
| Width | 9.75 in |
| Weight | 7 lbs |
| Maximum BTU | 44357.846 BTU |
| Amperage (A) | 57 A |
| Voltage (V) | 240 V |
| Wattage | 11 kW |
| Energy Factor | 99.8 |
| ADA Compliant | Yes |
| CSA Certified | Yes |
| ETL Listed | Yes |
| UL Listed | No |
Reviews:
Nicely made unit. Clean lines, nice display, lightweight, easy to mount. You'll need a terminal box to wire it up since it comes with it's own pigtail cable (they don't want you to open up the case since it will void it's warranty, apparently; multi breaker units might be different), so I bought an inexpensive 60 amp A/C unit type cut-off switch box with a pull out switch. Just mount it near the heater on the wall and run your 6 gauge wire to it from your breaker panel. I just wish they had included adapters so that you can plumb it to 3/4" piping, so you'll have to buy your own if you wish to connect it to your existing 3/4" pipe. I had trouble using pipe dope (maybe it was too old or the wrong kind?), so I switched to Teflon tape (5 layers) on each fitting and that did the trick. Love the easy to turn dial, press to turn on/off feature and easy to read digital display which comes on when hot water is called for. Now, we'll see how long it lasts before some type of failure…scottcollins
so just got this unit instated and replaced 6 years old Titan (220watts)that just hasn't been getting up desire temperature lately. read bunch of reviews and this unit had better ratings . it was easy to switch from old unit as water and power hookups are almost the same . tested and it want keep up with fully open single sink , I had to reduce water flow at inlet pipe . did not measure but it seams im getting aprx. 2 gal a minute. no way to use 2 outlets at same time. btw we are in coastal northern Washington stateromanles
9. Rheem Rtex-06 240v Electric Tankless Water Heater
Product Details:
With a flow rate of 1.5gpm, this water heater from rheem is a great fit for personal and commercial applications. the smartly designed heating unit has a simple installation99.8% energy efficient, this heater saves on precious electricity. the heating element comes with a brass top for a durable performance, power: 5.5k – w/240v.
Specifications:
| Operating Voltage | 240V AC |
| Phase | Single |
| Cold Inlet Size | 1/2 in |
| Maximum Flow Rate | 2 gpm |
| Minimum Flow Activation | 0.3 gpm |
| Overall Height | 5.88 in |
| Overall Width | 10.88 in |
| Overall Depth | 2.75 in |
| Power Consumption | 6,000 W |
| Adjustable Thermostat | Yes |
| Current | 29 A |
| Environment | Indoor |
| Market | Commercial, Residential |
| Control Type | Digital Display with Keypad |
| Cord Conductor Gauge | 10 AWG Wire |
| Default Temperature | 120 Degrees F |
| Element Material | Copper |
| Housing Material | Brass |
| Maximum Water Pressure | 150 psi |
| Minimum Water Pressure | 25 psi |
| Mounting Type | Wall Mounting |
| NEMA Rating | Not Rated |
| Standards | CSA Certified, ETL Listed, UL 499 |
Reviews:
For the price you can't beat it. It will increase water Temperature 40 to 50 Degrees , which means if it's freezing outside , as is not working very well , BUT , I can tell you how to Make it Hotter. Put a T in the hot water side , then a valve, then a One Way Check valve, and then T back into the Cold water side ,, which also needs a One Way valve before your T . This heats the Cold water going into the heater and , makes it 15 degrees hotter mine was up to 130 degrees with outside air temp, around 40 .Zoro
Good quality and good solution.rey9009
Returning it for a unit with more output.codyvonsnozer
10. Rheem Rtex-24 Electric Tankless Water Heater
Product Details:
The rtex-24 was designed for a medium to large single family home, in cold climates, this model can heat a shower and two sinks simultaneously, and in warm climates, three showers and two sinks. on demand, consistent and endless hot water. 99.8% energy efficient. compact and stylish design with digital temperature control. save space. save water. simple installation. robust copper immersion heating element. element threaded for easy replacement. advanced self-modulation, adjust power to meet hot water demand. save energy.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 24,000 |
| Amps – Water Heaters | 100 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.30 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 59 Degrees to 140 Degrees F |
| Fuel Type | Electric |
| Phase | single |
| Temp. Rise @ 2.5 GPM | 66 Degrees F |
| Water Connection | 3/4" NPT |
| Temp. Rise @ 4.0 GPM | 41 Degrees F |
| Amps AC | 100 |
| Tank Capacity | 24 gal. |
| Pressure Range | 25 to 150 psi |
| Vent Type | Tankless Electric |
| Residential / Commercial | Both |
| Height to Top of Heater | 18.25" |
| Wire Size | 8 AWG |
| Height to Top of Vent Connection | 18.25" |
| Temp. Range | 59 Degrees to 140 Degrees F |
| Mounting | Wall |
| Voltage | 208/240VAC |
| Temp. Rise @ 6.0 GPM | 27 Degrees F |
| Default Temperature | 120 Degrees F |
| Max. Flow Rate | 6 gpm |
| Temp. Rise @ 2.5 GPM – Water Heaters | 66 Degrees F |
| Elements | Lead-Free Replaceable Cartridge Insert |
| Standards | UL 499, CSA |
| Water Connection Location | Bottom |
| Mounting Type | Wall Mounting |
| Overall Dimensions – H x W x D | 18.25 in x 17.63 in x 3.5 in |
| Minimum Flow Activation | 0.3 gpm |
| Cord Conductor Gauge | 8 AWG Wire |
| Maximum Flow Rate | 7 gpm |
| Temperature Range | 80 Degrees F to 140 Degrees F |
| Control Type | Dial, Digital Display with Keypad |
| Adjustable Thermostat | Yes |
| Maximum Water Pressure | 150 psi |
| Current | 100 A |
| Power Consumption | 24,000 W |
| Market | Residential |
| Environment | Indoor |
| Operating Voltage | 240V AC |
| Cold Inlet Size | 3/4 in |
| Minimum Water Pressure | 25 psi |
| Element Material | Copper |
| Country of Origin (subject to change) | China |
Reviews:
My old 80 gallon hot water tank was on it's way out so I did research on a replacement. I could replace the tank with another 80 gallon hot water heater (no thanks), I could go with a hybrid 80 gallon hot water heater (not bad), or I could go with a tankless system (ideal). There are pros and cons to each but I ended up choosing the Rheem 27kw tankless hot water heater. I read good and bad reviews on this system but I have nothing but great things to say. I had to have an electrician come and install an additional (2) 40 amp breakers and 8/2 wire for around $450 so I had a total of 3 lines hooked up to the system (essentially 1 line/breaker for each heating element). At first I was getting only luke warm water so I called Rheem tech support and the advisor was extremely helpful and told me to check a few things. Within 10 minutes it was working perfectly. (The issue had to do with the install, not the product). Be sure you're getting 240V to each element before your electrican leaves. Nevertheless, we initially set the temp to 140 and was way too hot. We dialed it down to 125 and it is perfect. We have 4 full bathrooms, kitchen, laundry, etc. We can easily have 3 showers on simultaneously. Best part is the hot water never runs out and ultimately saves you money. 2 thumbs up!Dindrunas
11. Rheem Retex-13 Kw Self-Modulating 2.54 Gpm Tankless Electric Water Heater
Product Details:
The rheem performance line. exclusive to the home depot! this water heater provides instant and continuous hot water for 1 shower or 2 faucets (based on geographic location). tankless electric point of use water heaters help reduce energy usage, save on energy costs, and are small so they will be a perfect match for installations under a cabinet or sink in your home, office, boat or rv.
Specifications:
| Required Volt Connection | 240 volt |
| Application Type | Residential |
| Indoor/Outdoor | Indoor |
| Fuel Type | Electric |
| Number of Showers | 1-2 |
| Amperage (amps) | 60 A |
| Electricity Phase | Single Phase |
| Finish Family | Gray |
| Flow Rate @ 35°F Rise (gallons/min) | 2.54 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 1.97 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 1.61 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 1.37 gal (US)/min |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 80 °F |
| Number of Elements | 2 |
| Pack Size | 1 |
| Uniform Energy Factor | 0 |
| Water Heater Features | Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
| Product Width (in.) | 8.25 in |
| Water Connection Size (in.) | 1/2 in NPT adapter included |
Reviews:
Easier to install than removing the old tank unit. My wife was skeptical at first that this would be as good or better than our old unit with the idea of "unlimited" hot water and it didn't disappoint… We have a small house but both showers and washer can run all at the same time..actionmaytag
This water heater is perfect for my little house, endless hot water. Was somewhat of a challenge to DIY install but I made it happen. This unit drinks lots of power. Be sure you have room in your panel. Shark Bite fittings with copper plumbing is essential, much faster. Would definitely buy this again.rdricker81
12. Ecosmart 27 Tankless Electric Water Heater
Product Details:
Ecosmart eco 27 is a 27-kilowatt tankless electric water heater ideal for providing hot water for apartments, condominiums, townhomes and other whole home applications. it can provide between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature. to select the best solution for your hot water needs, please refer to the sizing guide. with ecosmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. now that feels warm all over! ecosmart – sharing the warmth.
Specifications:
| Assembled Depth (in) | 3.75 in |
| Assembled Height (in) | 18 in |
| Assembled Width (in) | 17 in |
| Assembled Weight (lbs) | 13.75 lbs |
| Item is Shipped at this Packaging Level | Y |
| Packaging Depth | 6.5 IN |
| Packaging Height | 19.75 IN |
| Packaging Width | 19.5 IN |
| Package Weight | 14 |
| Package Weight UOM | LB |
| Net Packaged Quantity | 1 EA |
| Water Heater Style | Tankless |
| Manufacturer Warranty | Limited Lifetime Warranty |
| Commercial / Residential | Commercial/Residential |
| Flow Rate @ 45°F Rise | 4.29 gpm |
| Flow Rate @ 77°F Rise | 2.39 gpm |
| Gas or Electric | Electric |
| Temperature Pressure Relief Valve (TPR) | No |
| Water Connection Size | 3/4" NPT |
| Height | 17 in |
| Width | 18 in |
| Weight | 13.75 lbs |
| Maximum BTU | 92127.834 BTU |
| Amperage (A) | 112.5 A |
| Voltage (V) | 240 V |
| Wattage | 27000 W |
| Energy Factor | 99.8 |
| ADA Compliant | Yes |
| CSA Certified | Yes |
| ETL Listed | Yes |
| UL Listed | Yes |
Reviews:
Like all of the 1 star ratings, my unit failed after about a year. It began leaking which caused it to short out. When I called the customer service, they asked for pictures of the leak and the heating elements. They immediately blamed the leak on me for not maintaining the unit. After I prove I did they asked me to send a video of the unit tripping the breaker which made no sense considering the unit was leaking water. In the end they recommended I re-solder the hole. Really?! So, for the sake of having hot water in the middle of winter, I do. Nine months later another hole appears and the exact same issue occurs. This time I demand a replacement after once again being blamed for the issue. After they run out of excuses on why it happened they then say I never registered my warranty, which I did. How in the world do I prove that I registered my warranty when the same people I registered it with claims I didn't? This product has NO support if and when it fails. STAY AWAY FROM THIS COMPANY!! Buy a better unit for a little more money AND keep all of the warranty information just in case.Andre'
To use this unit you will need to have an electrician bring in 3 high voltage lines into your home. $$$$. Any time you use the unit all the lights in the house flicker. After months of that annoyance I contacted dealer and was given a new control panel that I had to install myself. It solved the problem for a couple months then back to the flickering. Two years later the unit just stopped working. Plumbing service call told me I needed another new control panel. Now company says I don’t have lifetime warranty because I didn’t send in warranty card. They claim That they sent me replacement last time as a courtesy. This company is so short sited, they probably paid staff to argue with me more than it would have cost to replace the part. I bought a new part and had it installed…..back to the flickering lights. And do not buy this thinking you will cover the cost with savings. I’ve seen no difference in my electric bills. Read some other reviews. It’s not just the control panel that is garbage.Val
The first couple of months this product was awesome. Water was super hot and was easy to adjust. Then we noticed the water would not get as hot. Adjusted temperature on unit to 140 degrees, removed the filter off end of kitchen sink and nothing happened. Went through the virtual tech guide multiple times and found heating element was out. Tech support shipped a new one. Installed it, no change. Call back and was told you have to soak the heating elements in vinegar for 2-3 hours every six months. Reluctantly did it, no change. Even had it worked you should not have to do maintenance like this on a product not even a year old. Have had experience with other tankless heaters and never had to do maintenance. I've requested a supervisor call me 3-4 times and have yet to receive a call back. This has been going on for two months. Do not go with this product. Product quality is poor and tech support is as well.Daniel Andrews
13. Stiebel Eltron Tempra 29 Electric Tankless Water Heater
Product Details:
Siebel eltron tempra 24 electric tank less whole house water heater, 240 v, 24 kw. set the knob on the front cover and enjoy water temperatures between 86 degree (30 degree c) and 140 degree (60 degree c). change the desired temperature at anytime. no purchase of a remote selector control is necessary. advanced microprocessor technology ensures that the water temperature never deviates from the set point.
Specifications:
| Preset Temperature Memory Buttons | Yes |
| Flow Rate Monitor | Yes |
| Energy Monitor Showing Cost Savings | Yes |
| Hinged Case | Yes |
| Power (KW) | 28.8 KW @ 240v / 21.6 KW @ 208v |
| Voltage | 208 – 240 volts / single phase / 50 – 60 Hz |
| Max. Amps | 120 AMPS @ 240v / 105 AMPS @ 208v |
| Dimensions | 16.6 x 14.5 x 4.6" (42 x 36.8 x 11.7 cm) |
| Pipe Fittings | 3/4" NPT |
| Energy Efficiency | 99%+ |
| Activation Flow Rate | 0.77 GPM /2.9 LPM |
| Max. Water Pressure | 150 psi (tested to 300 psi) |
| Max. Output Temperature | 140F (60C) |
| Max. Input Temperature | 131F (55C) |
Reviews:
I self installed the unit a week ago. Since my existing electrical panel only had room for one double pole breaker I had to install a 100 amp breaker and run to a sub panel for the two 50 amp breakers required for the unit. I was able to mount the sub panel and the water heater on the wall in the space formerly occupied by the tank heater. I also installed a sediment filter on the input side of the heater. The installation went smoothly and was completed in less than a day. So far the unit is supplying plenty of hot water for my wife and I. We are able to take long, hot showers with no drop in water temperature or water pressure. It can also handle the dish washer and the washing machine, but not at the same time. The unit is well constructed and the installation instructions are good. Total cost of the unit, sub panel, breakers and other fittings came out to less than $800. All and all we are very satisfied and would recommend this unit for any household with similar requirements: 2 people, dish washer and laundry. Three or more people may require a larger unit.
I used this for radiant flooring with nibco panel and it works great..heating 1600 square foot house perfectly..frgay7427_g8dwpezoy
14. Rheem Retex-18 Electric Tankless Water Heater
Product Details:
Get hot water for your space with this performance self-modulating tankless electric water heater. this energy-efficient water heater delivers an endless hot water supply and consistent temperature with a self-modulating technology that adjusts energy based on your hot water needs. with the electronic thermostatic temperature, you can easily read the incoming water temperature and control it in one-degree increments. point-of-use installation and compact size makes this performance water heater a convenient choice.
Specifications:
| Amperage (amps) | 75 A |
| Application Type | Residential |
| Electricity Phase | Single Phase |
| Finish Family | Gray |
| Flow Rate @ 35°F Rise (gallons/min) | 3.51 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 2.73 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 2.24 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 1.89 gal (US)/min |
| Fuel Type | Electric |
| Indoor/Outdoor | Indoor |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 80 °F |
| Number of Elements | 2 |
| Number of Showers | 1-2 |
| Pack Size | 1 |
| Required Volt Connection | 240 volt |
| Uniform Energy Factor | 0 |
| Water Heater Features | Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
| Product Width (in.) | 14.5 in |
| Water Connection Size (in.) | 3/4 in NPT |
Reviews:
Easier to install than removing the old tank unit. My wife was skeptical at first that this would be as good or better than our old unit with the idea of "unlimited" hot water and it didn't disappoint… We have a small house but both showers and washer can run all at the same time..actionmaytag
This water heater is perfect for my little house, endless hot water. Was somewhat of a challenge to DIY install but I made it happen. This unit drinks lots of power. Be sure you have room in your panel. Shark Bite fittings with copper plumbing is essential, much faster. Would definitely buy this again.rdricker81
15. Marey Electric Tankless Instant Water Heater – 18 Kw – 5 Gpm – 220 V
Product Details:
The marey eco 180 tankless water heater uses up to 60% less electricity than conventional tank water heaters, making it cost effective and environmentally friendly. smart technology helps reduce temperature waste for optimal efficiency. just set the temperature you want your water to be and let it do it's magic. once it's set you don't have to touch it again because it will adjust all incoming water to the required temperature no mater if it's summer or winter.
Specifications:
| Fuel Type | Electric |
| Tankless | Yes |
| Gallons Per Minute | 5 Gallons |
| Volts | 240 Volts |
| Portable | No |
| Power | 18kW |
| Amps | 75 Amps |
| Installation | Indoor |
| Frequency | 60 Hz. |
| Cycle | 60 Hz |
| Circuit Breaker | 2 x 50 |
| Phase | 2 Phase |
| Water Connection Location | Bottom |
| Water Connections | 3/4 NPT |
| Activation Flow | 0.8 GPM |
| Safe Operating Pressure | 5 PSI – 85 PSI |
| Flow Rate at 35 F Rise (gallon/min) | 3.5 |
| Flow Rate at 55 F Rise (gallon/min) | 2.2 |
| Flow Rate at 65 F Rise (gallon/min) | 1.8 |
| Maximum Temperature (F) | 125 |
| Minimum Activation Rate (gpm) | 0.8 |
| Minimum Temperature (F) | 86 |
| Minimum Required Breaker | 2 x 50 |
| Flow Rate at 45 F Rise (gallon/min) | 2.7 |
| Maximum Distance to Point of Use (FT) | 40 |
| Pressure Rating (psi) | 2.9~87 |
| Required Volt Connection | 240 |
| Uniform Energy Factor | 0.93 |
| Unit Dimensions (HxWxD) | 16.5in x 11in x 3.5in |
| Household Amperage Required-Amps | 100A |
| Maximum Number of Points of Use | 3 |
| Cycle (Hz) | 60 |
| Power (KW) | 18 |
Reviews:
It works fine, but it arrived in a shipping box with no manufactruer box inside, just the water heater. One of the dials has come lose and I had to screw it back on. There was no manual. There was no power cord, but it may not have come with one ( I couldn’t tell you since I didn’t get a box or a manual). There was water inside the unit. I think someone must have gotten it before me and then returned it and factory pure didn’t notice- that or the falsely sold me a used unit. I went ahead and installed it, though, because I had already opened up my water line and removed the old unit. If anyone from factory pure is reading this, I’ll forgive you for a fifty dollar partial refund- that’s about what I’d have expected to save by buying used.cade j.
As for the breaker tripping in other homes, as a licensed electrician of 26 years, I would advise you to take an amperage reading during operation. Most home owners do not have multi meters with an amp clamp so that could be difficult I understand. If the heater is not drawing over 55 amp during operation you may have a defective circuit breaker, it happens. Try replacing your breaker. If the heater is drawing over 55 amps ther is a problem with the heater.Andy A.
16. Electric Scr2 Titan N-120 Tankless Water Heater
Product Details:
Titan electronic tankless water heater has been around for over 35 years and is ideal for a wide range of applications. these models could be used anywhere from point of use to whole entire house (all depending on ground water temperature going into the unit). they are energy efficient and therefore you will be saving on energy cost. the electrical specifications are based on 220-volt/240-volt be sure to check specifications on unit being purchased. voltage, amperage, breaker and wire may vary depending on local electrical standards. consult a professional plumber and electrician for guidance. remember, that any adjustments made on your unit will take seconds to reach point of use. water temperature from 105°f to 120°f is adequate for all practical purposes.
Specifications:
| Power Source | Electric |
| Energy Star Certified | Yes |
| Minimum Temperature | 55 °F |
| Height | 10" |
| Commercial or Residential | Residential or Commercial |
| Water Connection Location | Side |
| Width | 7" |
| Watts | 11.8 W |
| Maximum Temperature | 70 °F |
| Volts | 220 V |
| Maximum Pressure | 150 psi |
| Water Connection Size | 1/2" |
| Depth | 3" |
| Product Type | Tankless Water Heater |
| Tankless | Yes |
| AMPS | 54 amps |
| Warranty | 1 Yr |
| CSA Listed | No |
| Each Weight | 8.000 LB |
| Velocity | B |
| Hazardous Material | No |
Reviews:
200 amp service. This thing pulling 66 amps . Heat pump pulling 90 amps . If wife cooks, cleans and drys cloths, I think it wont work. Lights dim now with heat pump on and water heater on. Just my thoughts . So now I have it sitting on a shelf collecting dust. But I really cant blame titan. I should have done more than an hour of home work before ordering.metalpayed
17. Rheem Rtgh-Rh11dvln Prestige Series Natural Gas Condensing Tankless Water Heater With Built-In Recirculation
Product Details:
Rheem has been the leader in water heating for nearly 100 years, offering savings, comfort and the protection you need. providing continuous hot water in a compact, space savings design, rheem tankless water heaters are the perfect solution for any sized home. the rheem rtgh-rh series includes a built-in recirculation pump, allowing for instant hot water in every part of your home.
Specifications:
| Heat Exchanger Material | Stainless Steel |
| Fuel Type | Natural Gas |
| Combustion Type | Condensing |
| Vent Type | Direct Vent |
| Venting Category | IV |
| Storage Type | Tankless |
| Mount Type | Wall |
| Installation Location | Indoor |
| Includes Pump | Yes |
| Flow Rate at 40F Temperature Rise | 9.8 GPM |
| Flow Rate at 50F Temperature Rise | 7.7 GPM |
| Flow Rate at 60F Temperature Rise | 6.4 GPM |
| Flow Rate at 70F Temperature Rise | 5.5 GPM |
| Uniform Energy Factor | 0.94 |
| Minimum Flow Rate | 0.5 GPM |
| Ultra Low NOx Emissions | Yes |
| Low NOx Emissions | Yes |
| Voltage | 120 Volts |
| Phase | 1 |
| Frequency | 60 Hz |
| Primary Vent Pipe Diameter | 3 Inches |
| Gas Connection Size | 3/4 Inch |
| Cold Water Inlet | 3/4 Inch |
| Hot Water Outlet | 3/4 Inch |
| Product Width | 17 7/24 Inches |
| Energy Star Listed | Yes |
| CSA Listed | Yes |
| AHRI Certified | Yes |
Reviews:
nice to have hot water instantly unit works great pretty easy to installDon L
Great tankless water heater from Rheem. Got continuous hot water and it pumps out plenty. I installed it myself and was up and running in a few hours. Works with 1/2 inch gas line if need be. The internal recirculation pump is an added bonus especially if you don't want to pipe in to your furthest faucet which may be difficult in a lot of cases. I'm using stainless braided water hoses in a small run for now but will eventually hard pipe it all in.MicDeezNutz
18. Eemax Ha018240 240v 18 Kw Electric Tankless Water Heater
Product Details:
You don't always have to invest in a large, expensive hot water heater for your entire home or building. take hot water directly to where you need it more efficiently with the eemax residential tankless electric water heater. perfect for bathroom or kitchen sinks, apartments, or your whole house, this hot water heater eliminates long hot water pipe runs for a more efficient, point of use solution. this electric tankless water heater also features a compact design that can mount to almost any wall with the included mounting bracket. tailor and control your hot water with this tankless hot water heater's 80 degree to 140 degree adjustable temperature control. simply connect to your water source, plug in with the included 240 volt power cord, and start enjoying hot water on demand. age group: adult.
Specifications:
| Power Source | AC |
| Item Dimensions LxWxH | 18 x 17 x 4.5 inches |
| Wattage | 18 watts |
| Voltage | 240 Volts |
| Maximum Flow Rate | 5 Gallons Per Minute |
| Product Dimensions | 18 x 17 x 4.5 inches |
| Country of Origin | USA |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Certification | ANSI/NSF, certified frustration-free |
| Included Components | electric tankless product |
Reviews:
This is a well-made and capable unit. It has sophisticated temperature control and operates silently and reliably. It is internally identical to the Rheem and Ecosmart 18 kW units. If I could suggest one modification, it would be to add an additional or upsized power supply knockout to accommodate the two parallel electrical supplies required to operate the unit.cromagron
replaced a burnt out unit exactlyhack356
19. Eemax Ha027240 240v Electric Tankless Water Heater, 27 Kw
Product Details:
Homeadvantage ii’s advanced heating technology gives you hot water faster and more reliably without wasting energy. with its patented self-modulating technology, it only uses the necessary amount of energy to heat the water needed, nothing more. all of these factors come together to create big impact that’s good for you and good for the environment. measures 17" w x 17" h x 3.75" d.
Specifications:
| Power Source | Electric |
| Amperage | 112.50 |
| Fuel Type | Electric |
| Application Type | Residential |
| Certifications and Listings | UL Certified |
| Finish Family | Silver Metallic |
| Heat Exchanger/Element | Copper |
| Indoor/Outdoor | Indoor |
| Product Depth (in.) | 4 |
| Product Height (in.) | 17 |
| Product Width (in.) | 17 |
| Water Connection Location | Bottom |
| Pack Size | 1 |
Reviews:
poorly written manual, customer service was iffy, also not real well informed.tim
Uses a lot of power for short spells. Consult your electrician before committing to the installMattman072
20. Ge Ge08snhpdg 1.7 Gpm Tankless Point Of Use Electric Hot Water Heater
Product Details:
Ge electric tankless water heaters provide instant, continuous water flow for unlimited hot water on demand. their compact design takes up significantly less space than a tank-style water heater.features installs at the point-of-use for hot water where it's needed. performance up to 1.7 gallons per minute is enough to run 3 faucets or 1 shower in warm climates. remote control included to change temperature settings and control the unit from up to 30' away. adjust temperature and settings with an easy-use touch screen and intuitive design. conserves energy and water by only using energy when hot water is in use. scale reduction technology extends the life of the unit by shielding the heating element from water and scale buildup. self modulating technology utilizes inlet and outlet temperature sensors to optimize energy usage and keep water temperature consistent. uses standard 1/2" npt water connections and does not require venting for simple, wall-mounted water heater installation. the manufacturer will replace the entire water heater if there is a defect in materials or workmanship relating to functional parts only.
Specifications:
| Weight | 6 oz |
Reviews:
Such a space saver and works just as well as the traditional hot water heater.Kelli
I first bought 2 Rheem tankless water heaters from HD and neither of them worked. Went online and found this GE but it had no reviews but I knew it would work as advertised. The only negative issue was terminating the power cord inside. Would have been nice if a pigtail came preinstalled.rad951
