On Jan 4, 7:24*pm, "
wrote:
On Jan 4, 1:49*pm, bob haller wrote:

I wonder how often the solar heater will provide needed heat to the
home.

if may not be cost effective

Another factor is a forced air system frequently already
has a heat exchanger in it, the AC evaporator. *Adding
another obstacle for the air to go through will create
more resistance for the blower. *It might create enough
so that it burns it out the blower motor. *Or the added
resistance reduces the cooling performance in summer,
etc. *Overall, doesn't sound like a great idea to me.

Reduced airflow reduces load on the fan motor.