Internet #302776113

Model #WGRTNG150

8.1 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water Heater

  • Can support whole house applications
  • Consult Plumber;15 amp circuit required and ¾" gas line required
  • ENERGY STAR Certified
  • See More Details
$92215

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Price:
$92215

Product Overview

The Westinghouse 8.1 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water Heater is constructed with a durable, high grade stainless steel heat exchanger to resist corrosion and provide a longer life expectancy. This Westinghouse tankless water heater produces continuous hot water for optimal comfort while the built in water leak detector and 12 year limited warranty provides peace of mind. For California and Utah residents, this water heater meets or exceeds Ultra Low NOx emission requirements.
  • California residents
  • Dual stainless steel heat exchangers resist corrosion and provide a longer life expectancy; backed with a 12 year limited warranty against leaks
  • ENERGY STAR certified with uniform energy factor of 0.93 (0.95 energy factor)
  • 150,000 BTU provides endless hot water
  • Ultra- low NOx combustion system – CA and UT compliant
  • Easy to use LCD display which allows the user to set the water temperature
  • High altitude compliant
  • Anchors and wall mounting brackets included
  • Built-in water leak detector and freeze protection
  • Bottom connections for versatile installations
  • 12 year limited residential warranty; 5 year limited commercial warranty
  • For indoor use only; outdoor models are available
  • Consult a professional for installation



  • Click here to check out our buying guide on water heaters
  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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8.1 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water Heater
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BrandWestinghouseRheemRheemRheem
Name8.1 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water HeaterPerformance Platinum 9.0 GPM Natural Gas High Efficiency Indoor Tankless Water HeaterPerformance Platinum 9.9 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water HeaterPerformance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater
Price
$92215
$107999
$1286.41
Save $206.00 (16%)
$132900
$139900
Ratings
(56)
(135)
(136)
(136)
Gas TypeNatural GasNatural GasNatural GasNatural Gas
Flow Rate @ 45 F Rise (gallons/min)8.5 gal (US)/min7.57.78.5
Indoor/OutdoorIndoorIndoorIndoorIndoor
Application TypeResidentialResidentialResidentialResidential
Water Heater FeaturesAnti-Bacteria Growth,Digital Display,Freeze Protection,Overheat Protection,Ultra LoNox,Wall MountedUltra LoNox,Wall MountedFreeze Protection,Ultra LoNox,Wall MountedFreeze Protection,Ultra LoNox,Wall Mounted
Total BTU150000 Btu180000 Btu180000 Btu199000 Btu
Fuel TypeGasGasGasGas
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Specifications

Dimensions

Product Depth (in.)
14.8 in
Product Height (in.)
27.6
Product Width (in.)
17.3
Vent diameter (in.)
3
Water Connection Size (in.)
.75

Details

Application Type
Residential
Commercial/Residential
Residential
Finish Family
Gray
Flow Rate @ 35 F Rise (gallons/min)
8.1 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
8.5 gal (US)/min
Flow Rate @ 55 F Rise (gallons/min)
5.2
Flow Rate @ 65 F Rise (gallons/min)
4.4
Fuel Type
Gas
Gas Connection Size
.75
Gas Type
Natural Gas
Heat Exchanger Warranty
12 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
.5
Minimum Temperature (F)
95
Pack Size
1
Product Weight (lb.)
88
Required Volt Connection
120 volt
Returnable
180-Day
Total BTU
150000 Btu
Uniform Energy Factor
0.93
Vent Type
Single Wall
Water Heater Features
Anti-Bacteria Growth,Digital Display,Freeze Protection,Overheat Protection,Ultra LoNox,Wall Mounted
Wattage (watts)
125

Warranty / Certifications

Certifications and Listings
ETL Listed
Labor Warranty
No Warranty
Part Warranty
5 Year

Questions & Answers

109Questions41Answers

The heater never stops draining. Even while it’s been off for a whole day.

Asked by RF October 5, 2020
6
Answers

I've had my unit for 3 years and it rarely produces condensation. It really depends on how hot you have your water temperature, other then that it's been a great product

Does this have a built in mini tank?

Asked by OnceUpon August 27, 2020
3
Answers

Yes like 3 gallons

very seldom get hot water until I run faucet several minutes

Asked by Nick May 8, 2020
1
Answer

Remember, with a Tank unit, that is constantly heating the water, the heat will rise throughout the hot water side of the plumbing system. With a tankless system, that only heats the water as it is being used, it does lose some of that initial heat to heating the pipes as it is sending the water to the faucets. One thing you can do to help with this is to insulate the hot water pipes that you can reach. Another thing you can do is to install a recirculation pump which takes the "cold" hot water and pushed it into the cold water pipes on a timed basis or whenever you push a switch. That way you are not wasting water down the drain, but pushing the water back into the system to be sent to the water heater to be heated.

this unit has a hot water and Heat

Asked by Cesar November 25, 2019
6
Answers

It is only for hot water,.

Can this tankless water heater be used with recirculating line?

Asked by Geo September 11, 2019
5
Answers

Hello Geo, The Westinghouse 11 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water Heater can be used with a recirculation line. Thank you, Westinghouse Water Heating

Can my PVC water Supply lines run up to the heater then use brass fittings going into the heater?

Asked by 19591937 August 18, 2019
5
Answers

Not an expert in this area, but I don't see why not. The only reason I can see for this being a problem would be if PVC is used for hot water going out since PVC has lower temperature specifications than the hot water heater can put out. Hope this helps.

I purchased this unit just over a year ago. It has been fine until the last couple weeks. After ...

Asked by sandymac73 March 10, 2019
4
Answers

I would check my water inlet to see if it slowing water flow, then I would check my incoming voltage and my settings after a power outage

In October 2017, I bought the WESTINGHOUSE Tankless Water Heater model WGRTNG199. Until now, the ...

Asked by Zigi February 16, 2019
8
Answers

I had same thing happen with a unit I purchased in October 2017 and the Tech Support telephone number was no help. The water became cold while taking shower. The unit had error code 11 and 67 at startup when restarted since the blue device with a knob couldn't turn according the tech support which I starting calling the anti-tech support department. I personally like hot water for the dishwasher, washing machine and shower. I bought a power vent 40 gallon tank water heater and replaced the Westinghouse MTP ANTI-water heater since the anti-tech department couldn't help resolve and apparently doesn't care that I didn't have hot water. Get a new tank type water heater that isn't Westinghouse or MTP or whatever they are?

Can it use natural gas

Asked by frigid January 31, 2019
1
Answer

Hello! Thank you for your interest in our tankless water heater! This model is for Liquid Propane only. We do offer it in Natural Gas, please search for model number WGRTONG199. An indoor natural gas model is also available, model number WGRTNG199. If you have any other questions, please reach out to us at Marketing@WestinghouseWaterHeating.com. Have a great day!

Can this water heater be vented with pvc pipe?

Asked by LL August 8, 2018
2
Answers

Yes. 3 inch pipe

8.1 GPM Ultra Low NOx Natural Gas Condensing High Efficiency Tankless Water Heater - page 2

Customer Reviews

  • 57 Customer Reviews
  • 3.5 out of 5 stars overall
50% of customers recommended.
Overall Ratings
5star-icon(26)
4star-icon(7)
3star-icon(5)
2star-icon(6)
1star-icon(13)
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Great Unit, exceptional value!!
Quality :
5
Value :
5
I installed the unit over 18 months ago. It is a fantastic unit for the following reasons: - can run 2 showers and a dishwasher with no issues - very quiet; less than 45db when running - endless hotwater - time to receive hot water without a recycle set-up is about 20 seconds longer than a tank (3,400 sq ft home) - reduction in gas bill A tank water heater is old technology. If you have the gas supply, and you have a family of 4 or more go with 199,0000 btu/11 gal. For the money, this unit is an incredible value. Note: make sure you run your gas 3/4 inch all the way. Do not cheat and go 1/2 inch. You will starve the unit of gas and it will shutdown when demand is high. Cold water. Yikes!!
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This is a really awesome heater, especially for the price, and considering the rebates/tax breaks...
Ease of installation :
4
Quality :
5
Value :
5
This is a really awesome heater, especially for the price, and considering the rebates/tax breaks available right now! It was a little challenging for a DIY install, but that's to be expected for any high-capacity tankless heater, since it has to have a large gas supply, and good, unobstructed ventilation. I moved where it was mounted across the room from the old water heater, to get closer to the gas main, which meant I had to re-plumb the gas, *and* create a new drain on the other side of the room, so that's what took the most time. The result is awesome though. It heats all the water I can pull through it very consistently, and immediately. We have 4 bathrooms, and we've had all 4 showers, plus laundry going at the same time, with no problems at all. I've been impressed with how quickly it reacts to varying demands. If I'm taking a shower, and the laundry kicks on, my water pressure goes down a little, but the temperature stays the same (which is really impressive!). The unit is very quiet while it's running, but it makes Hades' own racket for about 1sec while it's starting up. It sounds like a giant transmission grinding gears at startup. I think it's something to do with the flame igniting, and resonance in the burn chamber/exhaust, or maybe it just resonates against the concrete wall I mounted the unit on, and amplifies the sound, but it's disconcertingly loud :D. I can hear it throughout the house, and outside is even louder (I can hear it from my neighbor's yard, two houses away!). Overall though, I love it, and am glad I bought it.
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Water goes cold mid shower? I solved it. This might answer the "heat goes off in the middle of th...
Ease of installation :
4
Quality :
4
Value :
5
Water goes cold mid shower? I solved it. This might answer the "heat goes off in the middle of the shower" people. Happened to me & I solved it. I have installed several tankless water heaters (I'll never, ever go back to tanks). One OTHER heater I installed was rated for "two showers and a dishwasher" but I have it in a 2 unit building and after working out a couple kinks I could run 5 showers, 5 bathroom sinks and two kitchen sinks all hot for 30 minutes. hot water for ever. Then, I bought this one to push my luck and put it in a three-unit. One of the units has FIVE SHOWERS AND TWO WASHERS. But, to my dismay, after the easy installation, it was far less stable than the Rinnai I'd just installed. It made a groaning hum like blowing across a large coke bottle, and sure enough, the water went cold after a few minutes, then came back and cycled like that. Bizarre. FIRST problem: I misread the venting requirements. I tried to get away with 2" pipe, but when you do that, the length limits are punishing and I needed more. So, I re did it in 3". I'm well within the 100 feet, max of 6 elbows, but every elbow past ONE takes 5 (or 8, I can't remember) feet off the 100 feet. SO, if you had the 6 elbows (Which I did), 5 of them would add up to 25 or 40 feet off the 100 allowed length, but that's still 60-75 feet, or 30-37 feet for each input and output. I was WELL within that. Still shut off. I disconnected the venting and it ran much better (just for testing!) but it still cycled power. At its worst it threw ER10 which means the flame went out more than 8 times. I did call the company and they said all signs point to its starving for fuel: 1) Do you have good gas pressure? my brand new gas service provides 14" column of water in pressure. 2) Is the supply line to the unit 3/4" and not 1/2". Yes. 3) Did the professional installer perform a combustion analysis to make sure the CO levels are within tolerance. Well, I did it myself, and combustion analyzers are $1000 and I talked to three plumbers who didn't have them. All that being the case, they told me to turn the "offset" screw a quarter turn to the right and see if that helps. So, it took all of 20 seconds to remove the four screws on the front of the unit and the offset screw is really a torx bit. It was marked with red crayon at the factory and looks like it had already been turned 1/8th turn. I turned it an additional 1/4 turn, put it all back together and ran the hot water. Went cold within a minute. I opened the front again (always put things all the way back together for testing) and turned it another 1/4 turn. I had to use a torx bit socket that came with my socket set and a wrench. The allen key was stripping, and a huge screwdriver (there's also a flat head screw slot) was worthless.) AND I had to put a little more muscle than I really wanted to to turn the thing. Then, I ran it again. and held the pipe. Hot. Hot for 20 minutes! But it did still do the hum at start up a little. Maybe that was to clear it out. I'll let it go for a while and keep looking for someone with a combustion analyzer to fine tune it to get the optimum performance. The guy who helped me from Westinghouse tech support was Dominican and super geeked about the unit. "That unit is a MARVEL" he said. I was all set to take it back but in the end, I'm happy with it!
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BEWARE - Home Depot's product overview on this page is inaccurate and does not match the model # ...
BEWARE - Home Depot's product overview on this page is inaccurate and does not match the model # and title at the top. BTW, same thing applies if you try to look at the 8.1 GPM Westinghouse. It describes the 11 GPM. Extra caution if you are getting a rebate from your local utility company like me and basing things on Home Depot's information from their site. Glad I didn't purchase this for $1k, have it installed, then go for my rebate based on the specs i thought i was getting. I called Westinghouse to get it all clarified, and that was worse. After telling me I shouldn't rely on HD's info and actually questioning why i needed to see specs, they then said this model # doesn't exist. Then they found it. Then could barely find any specs on it. After 10 mins they finally directed me to a link for specs that matched the model number. Energy factor of .82. Not .96 as stated here. Just a slight difference. No Westinghouse for me. And you might want to fix your website Home Depot. It's a confusing mess. And who know's what you're actually going to get when you place the order for a Westinghouse tankless water heater.
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12
0
Installed it 5 days ago and what a difference, wife says this is the first time she is able to ta...
Installed it 5 days ago and what a difference, wife says this is the first time she is able to take a hot bath without running out of hot water. I used to have to wait to take my shower after she took her bath bit not anymore! Should have got this years ago.
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3
0
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Homedepot installers would not touch this unit...
Homedepot installers would not touch this unit
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1
0
The heater seems to take a long time to ignite,...
The heater seems to take a long time to ignite, like a full minute. When it does ignite it makes a rumble noise. I have had other tankless water heaters that didn't take so long to get hot water. It takes more than 2 minutes to get water to a sink with only about 14' of 1/2" PEX line from the water heater to the sink. Not very good.
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The product works very well. It is super silent and...
The product works very well. It is super silent and discrete. Best of all I received a rebatefrom my gas company. In which pretty much covers the cost of this unit. I would highly, highly, highly recommend this unit to anyone who is interested in saving money. Her gas bill was already low at approximately $40 a month in CA. Now after this installation our gas bill has lowered to $7 month. Probably won't believe this review, because I am also hesitant when reading reviews, being in the profession of a private investigator. However, I assure you that I am a real deal Holyfield person that don't take crap from no one. lol
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Works good but takes a minute for water to heat...
Works good but takes a minute for water to heat
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