Roof top A/C and heat pump
Planning on replacing my 15,000 BTU A/C, came across a Dometic unit with a "heat pump". How does this technology work, are they as efficient as the forced air propane heaters ? How much amps do they...
Forum Discussion
Hi,
A heat pump is nothing more than a refrigerator running "backwards". They draw the same number of amps as the air conditioner does when it is set in cooling mode. Because it is extracting heat from the environment if you compare it to an equivalent size resistance heater, and the outside air temperature is not lower than about 40 F they "produce" somewhere between 2 and 2.5 as many btu's for the identical number of watts.
If and when my air conditioner dies, I will be considering a heat pump as an upgrade.
I've already "broken out" my furnace control from the OEM Dometic thermostat--so I can run the heat strip and the propane furnace at the same time.
A heat pump is nothing more than a refrigerator running "backwards". They draw the same number of amps as the air conditioner does when it is set in cooling mode. Because it is extracting heat from the environment if you compare it to an equivalent size resistance heater, and the outside air temperature is not lower than about 40 F they "produce" somewhere between 2 and 2.5 as many btu's for the identical number of watts.
If and when my air conditioner dies, I will be considering a heat pump as an upgrade.
I've already "broken out" my furnace control from the OEM Dometic thermostat--so I can run the heat strip and the propane furnace at the same time.
