I have a very good wood stove. I heat only with wood. It should heat 2 of my houses. However I have been told that if I take the air inlet and route it outside to draw fresh air, it would be more efficient. My house is an old small timber home that has been resided, and had some interior work many years ago. However it is still drafty. Older windows on the main floor, as well as a shallow crawlspace. Contribute to this. Half of the living room actually overhangs the crawlspace by about 5 feet. The livingroom is by far the coldest room. I can feel drafts coming from all over. I am looking for the quickest solution to the drafts. Has anyone installed an exterior air inlet. Did it make much of a difference? Also I am going to be installing some rock or brick work around the wood stove to increase the thermal mass. Any one seen a link to some nice designs?