Rinnai Tankless Water Heater Model 2532 Reviews

Positive Reviews


How can endless hot water be a bad thing?


Pros: Endless hot water, Cheaper to run

Cons: Seems to take longer to get hot water flowing, Expensive

When we built our new home we opted for the Rinnai option that the builder offered. It was about a $2,000 option and we didn't install it ourselves, so that's why I left off the price since it can probably be had for less if you contract straight to the vendor. The system has been great with no complaints. Our gas bill is about $8 in the summer when we are only using the Rinnai (no gas heat in use) and I think that's pretty good. We are a family of 4 running the washing machine at least twice a week as well as dishwasher 2 or 3 times a week. We bathe too. If I had to find something to complain about (aside from the cost) it would be that it takes a solid 40 - 50 seconds...
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Love my Rinnai


Pros: Always have hot water! Lower operating costs

Cons: I don't have any to add

We are a family of four with a lot of laundry, showers and guests. I have never had an issue with our Rinnai. I felt like I was on the cutting edge when we built our home 7 years ago and installed this "water heater with no tank". I feel like the little extra it cost at the time, was well worth it. I used to have to fill my garden tub only at night so that everyone could take showers at our old house. I never worry about it anymore. I personally can't imagine going back to a conventional water heater. You are paying to heat water that "you might use" today, but then again, maybe tomorrow! It is well worth the investment!!!

Things to consider...


Pros: $ave $$, $ave the Earth, Endle$$ Hot Water

Cons: Everything has to be coordinated at the installation

My home is over 20 years old. I researched alternative solutions to the tank water heaters when I planned to replace the failing unit in my 2200 sqft home.  After receiving bids, and interviewing, several local approved Rennai installers I chose a plumbing company I'd used before (with good results).  They informed me that I needed to coordinate with an electrician, the local gas company, city inspectors to pull permits, and their workers to get everything coordinated, or they could act as the general contractor and do that for me for a couple hundred bucks more.    I decided to do the coordination work myself.  I called the city to let them know I was changing out my water heater...
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Negative Reviews


Lifetime of Unit is Not As Advertised


Pros: You will not run out of hot water

Cons: Initial High Cost & Requires Maintenace

I purchased my system about 5 and 1/2 years ago when I had my house built. The water heater failed yesterday. No power comes to the unit that controls the temperature setting.   Called the plumber who installed it and he will be coming to fix it tomorrow. He told me that his other customers also have a similar failure and it was due to the controller board going bad.   Not sure how much it cost but I assume it is going to be pricey. The blower part has a 12 years warranty. Not sure if the controller board is under warranty.   Will update this review once I get it fixed.   Dave

very satisfied until unit failed 6 months after 5yr warranty


Pros: very efficient, plenty of hot water

Cons: Paid 1600.00, failed short time after 5yr warranty expiration, should have purchased conventional gas water heater,would have lasted 20yrs .

I purchased the best, paid the most money for the technology and advertized reliability of 15 to 20years. I received great efficiency and reliability until the 5yr warranty expired along with the unit. Hindsite being 20/20 is telling me I should have purchased a quality conventional gas water heater for 1/3rd the cost that would have operated it's 20yr designed lifespan with no problems.



Pros: 1 local business/plumber

Cons: Never returned with an estimate!

Contacted the only authorized local business/plumber for a estimate and he never contacted me with any of the methods I provided him. Email; work, home phone; and residential address.

More Reviews


Waiting for hot water on tankless


Pros: Designed for tankless applications-durable

Cons: pricey

There is a product that will recirculate water and is for use on tankless applications, it will not void the warranty and will only add a few pennies to the cost of heating water.  It is manufactured by Metlund, can be seen on my website, may be able to contact a local supplier for this product.  go to www.yourtankless.com and look at products-metlund.keith 

great purchase


Pros: endless hot water

Cons: cannot think of one

We installed two of these when we built our house three years ago.  Paid around $1200 each.  Cost savings for use and reliablity are incredible.  No problem yet.  One reviewer wrote about the slow response time.  However, I believe this is a plumbing problem.  The hot water flows out of the water heater almost instantly.  Sure, if you have a long run, there is inherently a delay in getting hot water---however, you would have about the same delay (within a few seconds or so) with a tank-based heater at the same location.  Our house is about 5000 sq ft.  We have multiple faucets turned on at one time and have never had a hot water flow limitation.  The water heater only turns on the flame...
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