Quote:
Originally Posted by DAVES
What you say as far as putting the heat pump compressor on the south side of the home is true as far as heat. However since we are using the same unit for cooling you pay back when you are cooling. I've not seen anyone suggest putting a deciduous tree in to shade your compressor in the summer but leave it opened to gather heat in the ????? winter. I would expect you would be regularly need to take the machine apart to get rid of leaves inside of it.
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The only way the location of the condenser has much effect on the efficiency of the unit is if you can change the outside air temperature. The heat is transferred by blowing the outside air over the coil that has refrigerant flowing through it. The heat transfer is by convection, not radiation. The outside air temperature is usually pretty constant around the house, so anything you do will have little effect on heating or cooling efficiency.