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  1. HVAC
    My two-year-old Reznor UDAP garage heater stops heating. The fans work, but no heat. The green light flashes twice, which the manual says indicates a pressure valve problem. This has happened twice so far this season, both times when the outside temperature has dropped below minus 10 celsius...
  2. HVAC
    need combustion air-any ideas? I have an 1840 Greek Revival house with 3 apartments, 3 ancient forced air oil burners and 4 fireplaces. I've sealed up the house and blown in insulation and have created a fairly tight house. Needless to say I need a lot of combustion air if only for the...
1-2 of 2 Results