If after reading the previous post if you still don't have a understanding of how this could work read Jeff's #15 post again.
It helped me to understand that the theory that it works is actually a fact. Quote:
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Sorry my understanding of heatpumps does not allow for heat to be created from nothing.
Please don't waste any money on this. Steve |
Please enlighten us with your understanding of heat pumps particularly the refrigeration cycle.
I love learning its my favorite past time |
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A GSHP pumps heat out of the ground into the house. A ASHP pumps heat out of the external air and into the the house. A Fridge or freezer pumps heat from inside the appliance to the radiator on the back. Your idea involves pumping heat from inside your house to inside your house:eek: |
O.k So I can deduce from your answer that you are not familiar with the Refrigeration cycle. Until you delve into it on your own and teach yourself how it works you will be ignorant as to how the COP is made
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Jeff's explanation explains pretty elegantly and clearly and his numbers are damn close
The 14000 BTU ac I picked up makes only 11,000 Btu in heat 14,000 in cool mode. The loss Jeff explained in his post (his estimate was 12,000 Btu ) account for the lower heating efficiency of the unit in heat mode same as the manufacture claims. Jeff5may knows his refrigeration , I mean did you get what he said ? Its real information that accounts for the 2.7 COP That 2.7 Cop turns 1200 watt input power into 3240 watts of heat energy. Hence the gains from "nowhere" |
How I got the COP number of the portable ac heat pump
Rated input power 1200 watt Rated Btu (heat) 11,000 Btu 1200 watt to Btu = 4095 Btu Divide 4095 Btu into 11,000 Btu = COP 11,000 Btu divided by 4095 Btu = 2.68 COP The unit will more then likely draw 1150 to 1175 watts pushing the COP up past 2.7 1150w draw puts the COP at 2.8 |
With this indoor heat pump I should buy a cheap HRV / heat recovery vent and put it in the same room as the AC.
It would work great with this pump , it could be wired off the Ac's fan power line to run at the same time. Im going to scout one out right now. I love that idea edit - They are too costly new about $750 to $1000 |
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To clarify it makes heat and rejects cold
It doesn't just move it around that would be a Vent its more complex then a Vent. That pesky 2.7 COP has to come from somewhere and its the refrigeration process and Enthalpy. You will get it |
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