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  1. HVAC
    I have a Brant Plus 90i that randomly throws a #34 error code. Two different HVAC repair companies have been out and tried the following things: FSM cleaned - no difference in operation gas pressure adjusted - worked for about 1 week intake pipe checked for obstruction - no obstructions...
  2. HVAC
    I'm installing a 199k btu tankless water heater in a utility closet in the basement. I need to supply makeup air from the outside for a unit this size. I'll be drawing this air from the attic, so I guess I will need seven round 3" ducts running up my exterior wall to the attic: Required free...
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