Forum Discussion
rgatijnet1
Feb 11, 2014Explorer III
pianotuna wrote:
Hi rgatijnet1,
That, unfortunately, is misinformation.
Heat pumps work by extracting heat from one space and moving it to another space. For an RV that means extracting heat from the air outside the RV and moving that latent heat to inside the RV.
No need to swear the heat pump is blowing hot air on you. That is exactly what it is doing.rgatijnet1 wrote:
You are right but if you remove the cold from the room, you are left with the heat. The cold is blown outside. Stand under one of the roof top AC/heat pump units and with 15,000 BTU's of heat, drawing only 12 amps, you would swear that it is heat blowing on you, and so would the thermostat as the coach gets warmer. :B
Naturally the roof top units will quit in the 30's but the portable unit, that I gave the link on, has warmed our coach even with outside temps in the lower teens.
With the SINGLE hose portable heat pump, like the one I own and the one in the example, it does not draw any air from the outside. That is why mine will continue to work no matter what the outside temps is. It pulls air from the inside of the coach and exhausts the cold air out the single hose, while blowing the warm air inside. It also removes moisture at the same time and deposits it outside so I do not have condensation on the insides of my windows. It is a great unit but it is not the cheapest. The plus side is that it is also an AC unit and on some of the scorching days out West, it helps the roof top AC's keep things cool.
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