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.
Energy factor of 0.82 / Uniform Energy Factor of 0.81
Maximum output, minimum space; suitable for installation in non-traditional spaces such as crawl spaces and attics
Save time with hot water whenever and wherever you need it, any size home, even for simultaneous uses at multiple fixtures
Rinnai tankless water heaters let us all live greener and cleaner, our efficient and compact technology helps conserve natural resources, including water, while producing less waste in landfills and with higher standards for lower C02 emissions, your family can breathe easier, too
Concentric venting system
Temperature lock prevents accidental or unauthorized changes to water temperature
Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
Residential warranty: limited 10-year on heat exchanger, 5-year on parts, 1-year on labor
*Note. Rinnai is changing the language in its warranty terms and conditions found in the current User Installation manuals. The existing statement will be replaced by the following: "This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation." All warranties (old or new manual) will be honored as written above.
You can be confident in choosing to install Rinnai tankless technology in your home; our commitment to quality has made us the #1 selling tankless water heating brand in North America; your family deserves nothing less
Professional installation recommended; please call 833-746-6210
Rinnai branded accessories will ensure optimal performance of your Rinnai Tankless Water Heater.
A:Â Hello, No the V series is a non-condensing tankless water heater. Thank you, Rinnai Customer Care
by|Sep 18, 2023
Q:Can I have this unit to replace may old Rinnai model: R851-1 (REU-V2532FFU-US)
by|Aug 30, 2023
1 Answer
Answer This Question
A:Â Hello, yes this this Rinnai non-condensing tankless water heater is a comparable model offering the same 180,000 Max BTU. Rinnai offers a tool on our website to assist in selecting a product that best fits your needs please click on the following link https://www.rinnai.us/residential/solution-selector and https://www.rinnai.us/tankless-101. - Thank you, Rinnai Customer Care
by|Sep 15, 2023
Q:Does this model replace the r77
by|Jun 26, 2023
1 Answer
Answer This Question
A:Â Hello, Rinnai offers a tool on our website to assist in selecting a product that best fits your needs please click on the following link https://www.rinnai.us/residential/solution-selector and a Live chat agent to assist also. - Thank you, Rinnai Customer Care
by|Jul 26, 2023
Q:Is this unit 120 or 220v
by|Jun 3, 2023
1 Answer
Answer This Question
A:Â Hello, the Rinnai tankless water heater requires 120 VAC, 60 Hz power from a properly grounded circuit. If using the 5 ft (1.5 m) power cord (supplied with internal/indoor water heaters), plug it into a standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet. Thank you, Brittany
by|Jul 13, 2023
1 found this answer helpful
Showing 1-4 of 146
Customer Reviews
4.3 out of 5
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4.3
out of 527 reviews
72% recommend this product
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Showing 1-10 of 527 reviews
Jul 20, 2020
Should have bought sooner!
We went from a tank electric water heater to this gas tankless! We can tell a huge difference. Once it’s hot it’s staying hot baby! Only runs when it’s called for instead of a tank heating the entire day while we are at work. Sure it takes a second to get hot but that’s just the pipes having to warm up from not having hot water running through them! We are absolutely in love with this unit!
by
Recommended
2 found this review helpful
May 1, 2020
Rinnai tankless water heater is awesome, the vent I bought don't fit this unit maybe because it's...
Rinnai tankless water heater is awesome, the vent I bought don't fit this unit maybe because it's a off brand
by
Verified Purchase
Recommended
Feb 18, 2020
Need o have more information on the requirements for this to work right. Gas supply line and the ...
Need o have more information on the requirements for this to work right. Gas supply line and the rating on this is with water at 65 degrees. It takes longer for my water to get hot to the kitchen because it's the furthest from the heater. Plus I had to get a new gas meter to push more volume to the water heater. Then I had to replace my kitchen faucet to increase the flow so the water heater will kick on. So after I got a new gas meter and had to reroute to gas line pipe and new kitchen faucet and install a bigger gas line it seems to be working good. But it does take awhile for it to get hot but when it does it stay hot. I don't have to have much cold water to adjust the temperature.
by
Verified Purchase
3 found this review helpful
Dec 11, 2018
After installation I ran the hot water at both bathrooms and the kitchen and there was plenty of ...
After installation I ran the hot water at both bathrooms and the kitchen and there was plenty of hot water. There are very specific venting parts that do not come with the Tankless Water Heater. Those parts can be an additional $250 depending on how you vent the heater. If you vent through the roof, you will also have to buy a roof flange, because the venting pipes are larger than the existing pipes. When they install the new flange, you will have to replace some shingles. The over all installation I thought would be just put it on the wall and connect the gas and water pipes ended up being quite a bit more than originally anticipated. Get a quote from your plumber and roofer before you make the commitment
by
Verified Purchase
Recommended
34 found this review helpful
Sep 19, 2023
Best brand of on demand water heater
Simple installation, easy to use, works great, saves money, amazing customer service. No wonder Rinnai is considered top of the line in the industry.
by
Customer review from avidratings.com
Sep 6, 2023
by
Aug 31, 2023
Consistent Performance
Works like you expect to - consistent temp; no issues or complaints. Much better than a tank system.
by
Customer review from avidratings.com
Aug 30, 2023
Direct replacement for my 15 year old Rinnai unit. Easy to install and works flawlessly!
by
Aug 16, 2023
great tankless water heater
Moved in new home 6 months ago with this tankless water heater in the attic and so far it works great and we love it. Builder explained the energy efficient operations and safety features we are happy that this builder chooses to use tankless water heater. Austin TX has hard water so let's see how often we will have to flush this water heater.
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Welcome to ultimate efficiency. With technologyWelcome 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.View Full Product Description