Quote:
Originally posted by CptnDipshit
I was thinking about different setups today and came up with an idea. How about taking a car radiator or multiple heater cores and modify the cold air return system on your furnace so that the air goes through the filter then the radiator then into the furnace. I don't know how efficiant the blowers are in there but i know you can set the thermostat so the fan is always on. Maybe the thermostat turns it on enough anyway?
Steve
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The problem is that it would restrict the airflow of your furnace, in such a way that it would draw air from somewhere else. Depending on your setup at home, this air would either come from a) another intake on another floor or B) an external intake, if you have one.
If there is no other source of air, then the furnace looses its efficiency, and in house heating, doing anything to the system can decrease the efficiency dramatically. These systems are usually well designed, with little tolerances.
The central furnace is sometimes also composed of an A/C unit, and share some of the same ducts.
In short, if you have another intake on another floor, then the house system should work almost as efficiently. If the remaining intake is on a top floor, the house will cool a little better, but not heat as well. If the remaining intake is in the basement, you'll get better heating, but not as efficient cooling.
If the remaining intake is external, your furnace / AC will both be less efficient.
There is also an issue of dust. Because the house system is a very big collector of dust, the rad would get encrusted with dust so fast, it wouldn't even be funny.
(Now does everyone see what I mean by complicated?)