Start out by asking your wife to not be dusting around doors
or windows. And to look for cobwebs. If there are air leaks,
and if there are spiders to find them, they will put their little
webs there.

Or start with a room, any room. Cover the heat delivery vent,
perhaps with plastic and some magnets. So that you don't
confound what you're looking for. Then turn the furnace blower
on, so it will be pulling air from the rooms. Then go around with
incense stick, whatever, because those air leaks will be much
more apparent with active furnace function.

Another way is to just have a container of water, dip your hand
in, and use the back of your wettened hand to find the air leaks.

While you're at it, you might want to think about "tuning" your
delivery system. The rooms furthest from the furnace need to
have the most unresticted air flow, the bathroom is likely to be
right over it and generally needs minimal delivery, especially if
the air return is very near by.

Hope that gave you something to consider.

And a reminder-locks on the windows are not to keep people
out, they are to cut down on air infiltration. The word "window"
is from a Scandinavian term that was for "eye to the wind". If the
window locks don't snug one window portion to the other, some
alternatives need to be considered. If you can slip a business
card between the portions when the lock is secured, you have
found another leak.

On Jan 24, 12:53*am, blueman wrote:
I am trying to chase down drafts in my house and would like to get
advice on the best way to detect air leaks.