Ok, I had a new gas furnace installed last november, and the company offered to "tie in" my wood furnace. Previously the wood furnace only fed 2 seperate ducts. So I thought, great, now the wood furnace will heat the whole house. Wrong!!! The installer put in a relay that kicks on the fan to the gas furnace when the blower on my wood furnace goes on. It's supposed to help circulate the heat. Well, I end up with lukewarm to cool air comiing out of the registers. And it takes forever to get any sort of heat built up. After doing some research, I found that the problem might be how my wood furnace is ducted into the gas furnace. Currently the output from the wood furnace is ducted directly into the plenum above the gas furnace. From what I've read, this setup doesn't work very well since the blower on the gas furnace is stronger, it tends to build slight pressure in the plenum thus not allowing all of the heat from the wood furnace to enter the plenum. Whew, that was a lot to say. Somewhere I read that if you duct the output from the wood into the cold air intake/return in front of the gas furnace, the gas furnace will actually draw the heat in from the wood furnace. I thought I'd ask you folks before I try anything
Joe
Joe