Rinnai Q Boiler Overview

The Rinnai Q Series is a fully modulating condensing boiler with an efficiency rating of up to 95.4% AFUE. The five models of the Q Series range in size from 85,000 to 205,000 maximum BTU heating inputs, and all five have earned the Energy Star label. The Q Series is approved for room and closet installations and is designed to be used with a separate indirect hot water source, except for the Q175V model, which provides both heat and domestic hot water. It features a spark ignition and a stainless steel heat exchanger, with a variety of venting options. The Q Series is available in natural gas or propane, with kits available for easy field conversion.

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Consumer Reviews of Rinnai Q


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #1 of 3 Rinnai Boilers
  • 0% of customers recommended

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Rinnai Boiler Reviews

"DO NOT BUY!!!!"

1.0 rating
Very Unsatisfied

This boiler was installed brand new this year (2017) ans has been nothing but problems ever since. It goes out continuously and when it is rebooted, it will only work for an hour before going out again. Do not buy this boiler, stay away. Our installer has been here numerous times and has has tech on the phone trying to fix this thing, but to no avail. It was installed correctly so it is not his fault. Rinnai needs to step up and go above and beyond to fix this problem, but so far, they haven't done a thing to correct this. This will be the absolute last time I ever but anything with the Rinnai name on it.



Other Q Series Reviews

There are very few online comments regarding the Q Series on HVAC forums. A member on heatinghelp.com commented that he has installed several Q Series boilers and they are decent but he prefers the Buderus GB and Triangle Tube Solo.

Q Series Warranty

Product registration is required within 30 days of purchase for maximum warranty coverage. The warranty for the Rinnai Q Series Boiler is comprised of the following:

  • 12-year limited heat exchanger warranty
  • 2-year limited parts warranty
  • 1-year labor warranty

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