abikerboy
ArboristSite Operative
I have installed an outdoor forced air wood furnace, and I am seeking a little advice. Here is a link to my unit: I have the model E-1000 with the bi-metal manual draft http://www.airstove.com. I have installed this unit with it's own hot air and return system into my house, but I have wired it so that when the wood furnace blower comes on, my central furnace blower also activates to help distribute the heat throughout. Problem I'm having is regulating the temp so that the house doesn't get too hot. To help with this, I have installed a thermostat controlled damper system for a waste heat dump. On a call for heat, the wood furnace blows into the house as usual, but when the thermostat is satisfied, a damper closes to block airflow into the house. At the same time, another damper opens, dumping the extra heat outside. My question is would there be any harm to allow the hot air to dump into the crawl space, or does it need to dump to the outside? I've measured the air temps from the wood stove as high as 240, but the average is usually under 200. My house is around 1300 to 1400 square feet, with a vapor barrier on the ground and on the structural flooring of the house. The crawl space is vented to code, and I do have a make up air source to replace the air in the house as it dumps waste heat to the outside.
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