Rinnai V75iP Propane Tankless Water Heater - Delivers 7.5 Gallons of Hot Water Per Minute

L: I've waited nearly 2 months before I wrote a review. Here's my summary:
1. The installation is easy if you are replacing an existing unit, I replaced dual tank water heaters and relocated the tankless heater closer to the majority of the water users in the house so the installation was more time consuming and difficult. The instruction manual is awesome, take the time and read thru it (prior to buying) and follow it strictly. I bought a gas fired unit, had the gas company come out and validate the inlet pressure and ran all the calculations recommended. Installation took 4 days since I had to run additional gas piping, extend hot and cold water lines and install the vent piping to the exterior.
2. After you've read the manual, plan your installation carefully (vent, water in, water out, gas piping in, power). These all converge around the unit which isn't large and will take planning to make it fit and functional. Purchase all the vent pipe ($$$), water piping, gas piping, and valves for the unit (the bundle of all of these are not inexpensive)
3. The unit fired up after the second try (it had to vent the air out of the gas line on the first attempt). The start up was...

United States on Apr 11, 2023

Netizen: The piping that, in my case went up through the crawl space, then through the roof was tricky to install. Ordered all new pipe after measuring carefully and cataloging the fittings I'd need (45's, 90's, and so on). Make sure to order the right diameter double-walled pipe. Look online. I ordered online and the company actually shipped the same day, and it came the next, which is nice if, like me, you are without hot water in the interim.

S. Brewer's review is excellent. He covers all the crucial points very well. He explains clearly what you will be faced with if you decide to DIY the job. It was challenging. When you get to the point of lifting the unit up to hang it on the wall while simultaneously marrying it to the vent pipe, a second set of hands would be a major plus. I did it myself, but a second set of hands would be real boon at that point.

I was able to use the existing hole in the roof, but, as it turned out, the contractor who built the house preferred to cut a gigundo hole in the roof instead of doing the geometry to accurately predict the penetration location and hole size. To compensate, I created a plywood insert with a proper hole cut into it,...

United States on Nov 12, 2022

David Allan: We have this at our campgrounds in our 45’x14’ Northlander. Works great and easy on the LP. Was easy to setup and easy to winterized.

Canada on Mar 29, 2022

James: Haven't had a chance to install it yet

Canada on Nov 30, 2020

Rick Whissell: Best value I could find for the money but there was no mention of the special condensing vent kit that is required with heater. Also the kit was not available on Amazon, I found it on wayfair at a great price but this all delayed my install.

Canada on Jun 17, 2019

Brad P.: Bought this unit in replacement for the 10 year old R53C unit I had. Very happy, more flow then the old one and no issues with low flow taps not kicking in the hot water heater. Also no issues with running multiple devices of hot water at the same time, just a slight pressure change but not cold or hot shock in the shower tub etc. Would recommend to anyone, very impressed with the speed of shipping.

Canada on Aug 27, 2017

Moshe Z.: Product works great. It needed a Natural Gas to Liquid Propane conversion kit (ordered from Rinnai, was hard to get). Also required a regulator (ordered from Amazon) to work off a 30lb propane tank.

Once conversion kit and regulator was installed the tank worked well. Hot water arrives within 10 seconds or so. We paid an electrician to run 120V to it, and a plumber to hook it up.

Canada on Dec 30, 2016