I've been doing some winter weatherization around the house recently, caulking around windows and sills, sealing up any penetrations I can find. I think I've created a "wind Tunnel" of sorts. When the stove (insert) is going full bore, I can feel a draft along the floor from the back of the house, to the stove. I can not pin point the source of air leakage directly, as in I feel it is coming from several places like through electrical outlets (which I have installed those insulators on) and maybe where the walls meet the floor. My house is a brick ranch, approx. 1700 sq. ft., with a full, finished basement built in the late 70's. It has insulation in the walls and I blew in more in the attic last year. Being in the plumbing business, I know that if I seal everything up to well, the stove will need make up air to run. My insert does not have an OAK connector. I thought if I could get some sort of make up air system closer to the stove, it would pull from there versus across the whole house resulting in this draft. I am just not sure how/where to get this make up air. I do not want to open a window, as this seems counter productive in weatherizing a home. Anyone else dealt with this situation and have any ideas?