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    lsutton5144's Avatar
    lsutton5144 Posts: 1, Reputation: 1
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    #1

    Nov 7, 2008, 10:29 AM
    Programmable thermostats with heat pump
    Do programmable thermostats really help with energy costs when used with a electric heat pump?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 7, 2008, 02:10 PM
    Heat pumps are one area that a program type thermostat does not work well with. Most heat pumps need to run long times to be able to heat the home. When you use a set back schedule with a heat pump it is easy for the emergency heat to turn on to help bring the temperature back up. This really costs some $$$. So unless your system design allows or the program on the thermostat allows the emergency heat or 2nd stage heat to be locked out during recovery a program type thermostat will not be of much benefit.
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