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Model #V75iN

High Efficiency 7.5 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water Heater

  • Enjoy endless hot water
  • Less space for heating gives you more space for living
  • Professional installation recommended; please call 833-746-6210
  • See More Details

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Product Overview

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.






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Info & Guides

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NameHigh Efficiency 6.5 GPM Residential 150,000 BTU Natural Gas Exterior Tankless Water HeaterHigh Efficiency 7.5 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water HeaterHigh Efficiency 9.8 GPM Residential 199,000 BTU Natural Gas Exterior Tankless Water HeaterPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater
Price
Ratings
(349)
(471)
(86)
(382)
Gas TypeNatural GasNatural GasNatural GasNatural Gas
Flow Rate @ 45 F Rise (gallons/min)5.36.77.28.5
Indoor/OutdoorOutdoorIndoorOutdoorIndoor
Application TypeResidentialResidentialResidentialResidential
Number of Showers1-21-32-42-4
Efficiency LevelHighHighHighSuper High
Water Heater FeaturesFreeze Protection,Wall Mounted,WiFiFreeze Protection,Wall Mounted,WiFiFreeze Protection,Wall Mounted,WiFiUltra LoNox,Wall Mounted
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
9
Product Height (in.)
23
Product Width (in.)
14 in
Vent diameter (in.)
5
Water Connection Size (in.)
.75

Details

Application Type
Residential
BTU Rating
180,000
Commercial/Residential
Residential
Efficiency Level
High
Finish Family
White
Flow Rate @ 35 F Rise (gallons/min)
7.5 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
6.7
Flow Rate @ 55 F Rise (gallons/min)
5.3
Flow Rate @ 65 F Rise (gallons/min)
4.5
Fuel Type
Gas
Gas Connection Size
.75
Gas Type
Natural Gas
Heat Exchanger Warranty
10 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
160
Minimum Activation Rate (gpm)
.4
Minimum Temperature (F)
98
Number of Showers
1-3
Pack Size
1
Product Weight (lb.)
45.6
Required Volt Connection
120 volt
Returnable
90-Day
Total BTU
180000
Uniform Energy Factor
0.81
Vent Type
Single Wall
Water Heater Features
Freeze Protection,Wall Mounted,WiFi
Wattage (watts)
76

Warranty / Certifications

Certifications and Listings
CSA Listed
Labor Warranty
1 Year
Part Warranty
5 Year

Questions & Answers

189Questions14Answers

How hot will it heat water

Asked by Chris June 11, 2021
0
Answers

Will this work in a 1 bathrom, kitchen and washer 2 becroom house...

Asked by Hairshack June 4, 2021
1
Answer

Yes, this unit could possibly support that application but we would definitely recommend getting a licensed PRO out there for a thorough sizing. --Tashay

Is it easy to adjust to 7200 feet?

Asked by WyoMadge May 16, 2021
2
Answers

Should be. The elevation setting is located inside the unit. Simply unscrew the front cover and set the elevation accordingly. Rinnai includes an instruction manual on how to adjust it but you can also find it on their website if you’d like to see what it looks like before buying it. Best, Matt

I am replacing an indoor tank water heater with this unit. Do I need new venting or any other mat...

Asked by Amy April 23, 2021
2
Answers

Yes. Unfortunately the unit just includes the heater itself. You will need (at the least), tankless water heater valve kit $90, horizontal or vertical concentric vent kit $70-200, Rinnai condensate trap $40, 3/4 gas inlet pipe with flex hose and sediment trap $40, flexible hot/cold water lines with fittings $50, pressure relief valve drain pipe $20. Call your natural gas utility company for their specifications about venting and codes.

Planning on installing this outside, how high from the ground should it be? Any side or top clea...

Asked by DR April 20, 2021
1
Answer

That one I bought is an exterior and I installed it about 5 ft high

Can you use propane with this unit. I know a converter is needed if yes.

Asked by vic April 19, 2021
1
Answer

Rinnai makes that model in a propane style but if you already have the natural gas yes you can convert it over. You would have to get in touch with get them to send you the part. It's not hard but it does take about an hour or so.

Many people complain that it takes too long to get hot water at a faucet with the natural gas tan...

Asked by April 19, 2021
2
Answers

Mine doesn't take long at all. it's hot on demand. but you could add a under the sink heater to boost that.

I have a regular 30 gallon gas water heater that needs to be replaced. It’s a mobile home and the...

Asked by Shan March 24, 2021
1
Answer

Greetings Shan, This unit can be installed in an enclosed space as long as it is sitting upright and the venting can be installed through to the outside. However, it does need electricity and does condensate which are a few things to consider! Thank you!

What altitude is this unit set for?

Asked by Dave March 23, 2021
2
Answers

4225’

Can I have it installed?

Asked by SLP March 16, 2021
2
Answers

Yes. Rinnai is pretty popular and there are a lot of plumbing companies who can do the job in just about every state. You can find a Rinnai certified plumber on their website.

High Efficiency 7.5 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water Heater - page 2

Customer Reviews

  • 4.4
    out of 472 reviews
  • 83% recommend this product
Filter by:
Showing 1-10 of 472 reviews
I've had it in for a few weeks and it works great. We have a small home 1 bath, kitchen with dish...
I've had it in for a few weeks and it works great. We have a small home 1 bath, kitchen with dishwasher and washing machine, plenty of hot water. It's quiet I don't even know it's working.The unit itself is clean and reasonable small, we mounted outside and we built a cover to protect a bit from the elements. Install was simple mainly because we were replacing the old Rinnai unit with a new one and everything was in place. This seems to be a good value in my opinion. I had a company quote me 1800.00 for another unit installed, this until from Home Depot was about 600.00 to our door plus a hour labor to install.
by Rob
6 people found this helpful
Unit itself was easy to install, a little heavy to get in spot, used block and tackle araingment ...
Unit itself was easy to install, a little heavy to get in spot, used block and tackle araingment to lift in place. Took two days, changed major plumbing coming into house. No more heating 50 gallon every time.
by boatcat
12 people found this helpful
This is an excellent tankless hot water heater- however be warned, my contractor contacted severa...
This is an excellent tankless hot water heater- however be warned, my contractor contacted several plumbers to install it while he was doing a kitchen and bathroom renovation in my three bedroom/1 bath house- and they would not install it. They wanted $1600 for the brand they use, etc. My contractor ended up putting it in himself, which saved me a ton of money. He ended up putting the drip pan underneath for easy access for yearly maintenance, which we don't mind. Our hot water never runs out, and I am super pleased with it.
by Kriswalt5
21 people found this helpful
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 NeverEnough
27 people found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Working great for the first week. Hopefully it will continue....
Working great for the first week. Hopefully it will continue. I’ll re-review if anything changes.
by Ken
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
So far the tankless unit is working great...
So far the tankless unit is working great
by CARLOS
I’m happy with it overall. It was easy to install...
I’m happy with it overall. It was easy to install and services the small pool house fairly well. However it only really services one appliance, in other words if you are showering and someone turns on the sink, the temp in the shower drops. Also it’s relatively low price is because it comes without a couple hundred dollars worth of accessories that you need, so it turns out to not be cheaper than the full kit.
by DB
Awesome, little difficult to install, but the family loves it...
Awesome, little difficult to install, but the family loves it
by Yocona
Showing 1-10 of 472 reviews