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This heater works like a champ for my purpose with a couple exceptions. I'm using it in a combination heating and domestic situation and that is going well. Let me be clear that the heater is working as designed but my situation is extreme in its located at 9700 feet in elevation and the temperature of the water out of the ground is very cold. Because I am running it in a heating application I have a commercial control and have it set at 170 with a mixing valve on the domestic to bring it back down to 130. This works fine for all fixtures except for a high volume tub that given the ground water temperature and amount of temperature rise to 170 the unit resricts the flow to accomplish this. This is however what it's supposed to do as rinnai heaters guarantee the water leaving the unit to be the temperature set and by restricting flow to produce all the water it can or is being asked to by flow of a fixture. The unit adjusts the fuel usage to burn just enough to heat the amount of water to the temperature set. Like I said it works wonderfully on lower volume fixtures and really OK on the higher volume tub it's just not what I was used to when I had 40 gallons of water stored hot, but a little patience pays off as I don't run out of hot at some point. In conclusion I highly recommend this unit but there is a learning curve from what we've become used to.Read full review
Verified purchase: Yes | Condition: New
The rinnai is one of the first instant water heaters that came to the market, it’s made in the u.s. and does the job, be aware this model has to have its own exhaust system so be sure to find the pipes for installation
Verified purchase: Yes | Condition: Pre-owned
Have been using Rannai water heaters for my hot water and in floor heating for years. This is a newer model and it works great. No running out of hot water.
Verified purchase: Yes | Condition: Pre-owned
These units are amazing. Water heats up within minutes. Don't know yet about energy savings, but it has to be better than a traditional water tank.
Verified purchase: Yes | Condition: New