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    mobilehomer's Avatar
    mobilehomer Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 27, 2008, 11:51 AM
    Minimum safe ambient temperature for furnace operation
    I have a mobile home with a gas fired downflow furnace. The furnace was installed in 1995 and is manufacturered by Coleman. In order to save on the energy bill I am considering lowering the setpoint on the T-stat below the 55 deg F minimum position . I can accomplish this by using an old mercury bulb type thermostat that I have from the previous furnace system.

    Will operating the furnace to maintain lower space temperatures damage or shorten the life of the furnace?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 27, 2008, 12:02 PM
    Lower temperature = less usage. I cannot see this factor causing a problem BUT if your unit is a high efficiency condensing model then I would take care with how much you drop the temperature to due to the condensate freeze up in the drain line if it is drained under the trailer.
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