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Old 09-08-2012, 03:20 PM   #1
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Heat pumps


Are heat pumps like the Rheems that offer 2 stage heat and cool operations worth the additional cost?

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Old 09-08-2012, 05:20 PM   #2
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Depends on how much you use heat. If you use it a lot yet in temps that do not require second stage heat to come on (unless secondary heat is gas as in natural gas which costs much less to run than your average secondary heat which would be electric) than yes.

The heat pump uses the same refrigerant as is used for cooling to heat your home. In cooling mode, when you go outside and put your hand over the condenser and you feel that hot air, well a heat pump simply reverses the flow of refrigerant, rejecting that same heat inside of what in cooling mode is called and known as the evaporator coil, inside the home instead of outside when in cooling. With heat pumps the evaporator coil becomes the condensing coil and the condensing coil becomes the evaporator, they switch back and forth from heating to cooling.

Thing is you own the refrigerant so you don't have to pay for anything such as electric heat strips (resistive heat) or natural gas to heat your home, just the electricity it takes to run the compressor and the blower motor UNLESS or UNTIL the temp goes way down and first stage heat can not warm up the dwelling on it's own. Then second stage heat comes on to assist. Now you're paying a third party.

I think I confused myself a little with that one!

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Old 09-08-2012, 05:40 PM   #3
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Depends on how much you value you personal comfort.
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Old 09-08-2012, 06:05 PM   #4
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I guess I miss read about a rheem. Thought it said 2 stage cooling? This is what I am interested in knowing about. I understand that a heat pump has electric strips as backup or assist.
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Old 09-08-2012, 10:03 PM   #5
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2 stage cooling is for comfort. Tends to be able to keep the indoor humidity lower then a single stage can. So you become more comfortable by both longer run times with a constant cool air moving through your home, and lower humidity.
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