as I understand it, when the "seal" blows, you get condensation BETWEEN the
panes of glass. I had this
condition on a single pane downstairs. My condensation is on the INSIDE of
the unit, not between the panes.
I know that the windows are due for a change, but I'm in no hurry.... :) :)
The only way you can have 60% humidity in winter is with some very heavy
You have condensation on your windows because your windows are bad and so
the insides of the windows are very cold, and this is acting like a
dehumidifier and sucking out the last few drops of moisture. A dehumidifier
on top of that? That's funny.
I think not. A very tight house or a damp basement will do it.
Sounds natural, on a cold day.
Might be a good idea in wintertime. About 60% more efficient than electric
resistance heat, as a latent heat pump...
Page 2 of
mentions that a 1981 Canadian housing development holds the world record
for low air leakage...
Page 5 says the voluntary Canadian IDEAS standard calls for less than
0.15 m^3/h of air leakage per square meter of house envelope with a 50
pascal blower door test, which is equivalent to about 0.15/20 = 0.0075
m^3/h or 0.0127 cfm/m^2 or 4 cfm of natural air leakage for a 2400 ft^2
two-story house :-)
I agree that it's very hard to believe a std older home as the OP
described would have 60% humidity with outside temps of 0 during the
winter with forced air heat. Some small amount of condensation around
windows is normal. I'd check the windows, as leaking drafts, etc
will cause condensation. Further proof is that the dehumidifier
didn't remove much water.
BTW, if you think a heat exchanger is too expensive, how expensive do
you think it would be to implement the idea of just hooking an outside
air intake up to the return air duct? The operating energy wasted
will be huge.
Like just about everyone else, I have the opposite problem and have a
humidifier installed on my forced air furnace. And it does a great
I'm guessing this is a very tight house....definitely NO moisture issues in
the basement, we use it as living
goes to show you that not all older homes are bad :) actually its
interesting. this house is approx 1300 sq. feet
(for a total of 2600 sq feet of heated living space). I have the IDENTICAL
furnace as I did in the previous home
of 800 sq feet (total of 1600). My heating bills are LOWER here :) Same
town, same gas company, same weather.
Larger house, less bills = less leakage.
On Wed, 02 Jun 2004 01:07:18 GMT, "Hamilton Audio"
Just in case, make sure the furnace is venting properly -- ie, make
sure the chimney draws correctly and is not partly blocked. This can
create a high moisture situation in a closed-up home (water is a
by-product of combustion), not to mention a dangerous carbon monoxide
hazard. It's probably not your problem, but worth a check.
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