How to install a Navien controller in a sheetrock wall

[@judegonzales2231]

I see people installing pex for condensation lines on the Navien . This is a big No .

[@TheBuddylab]

I use CPVC ONLY WITH A PLASTIC FEMALE ADAPTOR

[@yit555]

Hi, I have a Rinnai R94LS that sounds like an air compressor running when in use. Very loud rumbling/vibrating/humming. It’s intermittent, shows no error codes, and has worked fine for six years. Removed and cleaned out the fan and did not help. What should I check next? Thanks

[@ThatTanklessGuy]

There could be something in the Air box, vent pipe or the high low gas settings are off.

[@judegonzales2231]

Shark bite

[@TheBuddylab]

Yes shark bite I’ve been using them since they came out and never had a problem with them.