stoken
01-21-2011, 08:15 AM
I installed a Hotblast 1400 wood furnace last year. It’s ducted into my gas furnace per manual instructions. The small twin blowers that came with it were not pushing enough air into the house to provide heat so I installed a full sized belt driven blower. This blower isn’t moving the air as I hoped either. The only way the house really heats is when the ducting is hot enough to kick in the gas furnace blower. The furnace is making plenty of heat. It will get hot enough while the blower is running to trip the limit switch and switch off the firebox blower. It acts like something is clogged and not allowing air to go through the furnace. It doesn’t seem to be forcing the air back into the return either. The gas furnace is working fine so I am sure the house ducting is fine- no leaks or anything like that. A friend has suggested removing the two eight inch ducts connecting the wood unit to the gas and replacing it with a single fourteen inch duct. Any thoughts on this? I would appreciate any ideas that you may have. Thanks.