I thought about that. However, I think a significant amount
of water will condense in that vent. You'll probably need to
allow for drainage and it's likely corrosion will still be
an issue. I'm not sure the amount of heat recovered is going
to be worth all of these issues.
| Malcolm Hoar "The more I practice, the luckier I get". |
Except that then you have to clean the vent-pipe every second
load, on account of the dryer doesn't have enough oomf to
clear the pipe, and unless you've got a moderately high-end
damper at the end, cold air leaks back inside whenever you're
NOT using the dryer, driving your heat exchanger backwards.
And the pipe rusts out, because of all the water condensing on
Unless you do laundry for a small army, the amount of heating youll get from
a dryer vent would be fairly minimal, as well as sporatic. The amount of
heat from a couple loads a week would hard have much effect on keeping your
I live in Baltimore, plenty humid much of the summer, but then, that's
not the season we're talking about.
I have done what you're talking about for 22 years with no ill
No rust on any of my tools (although I did get rust when the line to
kitchen sink broke and 50+ gallons of water poured into the basement
from a dozen places in the ceiling. So my tools aren't magic.)
My basement and probably yours is like a heat sink and doesn't get
that hot in the summer or that cold in the winter, but the humidity
helps me feel comfortable in the whole house, and I'm sure the warmth
makes some difference. I have a humidifier on the furnace, but there
is a month or more in the fall and just as much time in the spring
when the furnace is not on, but I need the humidity. And I vent the
dryer inside all winter too.
Heck, they sell kits for this, that take a four-inch vent pipe or
hose, and have a louver that goes from outside to inside, and includes
a filter for when it is venting inside. It uses aluminum window
screen. I have a filter in the dryer itself of course, so the filter
in the air valve only requires cleaning every year or two. Of course
i'm the only one doing his drying here, and my clothes don't have much
I've had mold in one corner by the floor that was always wet, and at
the base of one wall in the other room after the basement got wet, or
the water heater burst. After the basement dried out, the mold
stopped growing and then died. The dryer venting didn't cause it or
make it worse.
Not all basements are alike, one would assume.
If I were in your shoes but cautious, I would try it for a while and
come to my own conclusions.
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