Currently I have a 50 pint Walmart dehumdifier in my
basement which runs all the time, consequently using
hundreds of dollars a year in electricity--yet still
doesn't keep the humidity level as low as I would like
(right now it is 64%). While the house is fairly small,
it is old and the basement has numerous cracks in
the walls and floor--which I don't have the energy
What I am wondering about is the extent to which a
better dehumidifier would help with both improving the
humidity level and the electricity cost (by only running
part of the time).
Any experience, advice on models...?
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Some of the newer dehum have rotary compressors, which use less
electric. But, in any case, they do use a lot of power. Many times,
I've been able to help a dehum by taking it apart, and cleaning it.
More power consumtion when dirty.
Do you have the dehum about three feet off the floor? Is there a fan
or two circulating air to the dehum?
There are a lot of professional ones that get used in damage
remediation. They are expensive though. A guy here had a couple on
craig's list that he still wanted a bunch for. I tried to lowball him
on one but he wasn't budging. Frankly I think you are not going to
save any phonominal amount by having a higher capacity one, it may run
less but will use more power when it does run. Plus the lower you get
the humidity the more water you will draw into the space if it is not
well sealed. Think about it, you lower the hunidity to 40%, that just
makes it easier for water to evaporate into the air. Get some tubes
of caulk and then a couple cans of concrete sealant you can apply with
a pump sprayer. I'm guessing you have block walls down there? If you
can't do it, find a local high school kid and hire him for a weekend.
Just tell him waht to do.
How low do you want the humidiy, does it feel damp. The reason I ask
is all the analog humidistats I have need calibration yearly, digital
are a bit better but 65% is probably not acurate and could be off by
10% either way. How old is your unit, if its not Energy Star rated on
the unit and more than 5 years old you will save money running a new
The largest home type ones I've seen are 70 pints. Good chance you
could replace the 50 with a 70 and still have it run all the time.
It takes energy to do condense the water so there is some relation
between energy in and amount of water out. The newer units in
general do use less energy to remover the same amount of water, so if
the old one is 10+ years old, you might be better off with a new
one. However lots of people have told me that the old one lasted
forever and the new ones tend to last 4-5 years. Also, to get the
humditiy down to 50% you may need two units and with two placed in
seperate areas they could be more effective than one large unit.
From your name I can tell if you are male or female but that does no matter
You have been giving lots info one that you must consider that your
basement is well seal and you don't have seeping water in through
the floor that is you biggest culprit to Humidity
50 pints capacity that seems to me to be very large Dehumidifier,
What are doing with water that is picked up? make sure that you are
disposing of that water using hose that minimizes contact with air,
If you have open reservoir put some type of cover over it,
anything that you can reduce water contact with air will help.
Use of close drier in basement also brings humidity in.
"Caution" Gas fire hot water heater or furnace they need air
to work properly so make sure when you seal you do not
create vacuum in your basement. Good luck!!!
That's not a large capacity. 50 pints in 24 hours. About 6 gallons.
I've had a basement so damp after a drenching rain and clogged gutter
that my 60 pint had to be emptied 4 times in 24 hours and it had a 2
gallon tank on it before I got tired of dumping it every 6 hours and put
a hose on it. I would consider a 50 pint unit a medium sized unit.
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