Quote:
Originally Posted by randen
Another thought, would the system benefit more from omitting the exhaust airs HX and use the heat energy from my Geo-thermal ground loop via a brazed plate HX.
What do you fellows think.??
Randen
Can someone open and paste the drawing??
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Your existing heat exchange core is the best bang for the buck you can get. It uses fan power you would be using anyway to effectively move the heat. You basically only have 23ºC of energy to harvest out of the out going indoor air. A heat pump is not going to do this any more efficiently than your HRV core. What you really need to do is add energy to the incoming air after it leaves the HRV. A heat pump pulling energy from outside the house is a great way to do this.