Occassionaly I get these brilliant ideas (worthy of patents btw,
) and wanted to share one with you folks in getting some input. Mostly, curiosity gets the best of me with Dad having been an Engineer...
Anyhow, what would happen if you ran an "uninsulated" fresh air
flex duct within a homes existing ductboard or larger insulated flex duct? Would there be an appeciable amount of energy exchanged between the two over let's say 25 ft or so? Such as an ERV or HRV performs.
My sketch is just a general idea. The fresh air duct would terminate in the homes return plenum at some point, of course. I'm supposing the larger duct would have to exit the home as otherwise the energy exchanged would be meaningless? I'm not sure how condensation would be addressed or whether an issue given the exiting air would have been treated already?
This is just fun guys in sparking some possible input...