Furnace and on demand water heater maintenance

[swnoel]

Originally Posted by BroadHopper

I have Rinnai condensing boiler and on demand. Needs to be maintained every three years due to caustic condensation in the combustion chamber. Don Morin installed and maintained but he has retired. I currently use Seymour and Sons in Laconia. Very busy but reliable. 603.527.0066

Per Rinnais installation and servicing manual and for your warranty to be valid, Rinnai requires maintenance every 2 or 4 years. Most times they don't require proof, but you can never say they won't.