I have a Vigilant in the basement and use the stairwell as a hot and cold return with limited success.  New wood floors upstair and wife is frowning about cutting holes for cold air returns.  Then I had a thought.... Can I put a "T" in my downdraft stove exhaust pipe in basement with a damper.  Damper wood divert the flow from exhausting out to my basement.  The downdraft fan is pretty strong and on low should move a lot of air down the basement allowing more flow up the stairwell.  (They are 20 feet away from each other and the kitchen is the coldest room right now).  Has anyone tried this or have any good reason not to? 
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		 This is a significant difference. It wouldn't hurt to try temporarily I suppose. However, if it works well I would come up with a more permanent solution that is quieter and perhaps less expensive. That way if the rice is burnt the whole house doesn't end up stinking. Use a thermometer to accurately quantify the change if any.
 This is a significant difference. It wouldn't hurt to try temporarily I suppose. However, if it works well I would come up with a more permanent solution that is quieter and perhaps less expensive. That way if the rice is burnt the whole house doesn't end up stinking. Use a thermometer to accurately quantify the change if any. 
 
		 
 
		 
 
		 
 
		