This recall involves 42 models of dehumidifiers with brand names Kenmore, GE, SoleusAir, Norpole and Seabreeze, manufactured between January 2011 and February 2014.
This recall involves 42 models of dehumidifiers with brand names Kenmore, GE, SoleusAir, Norpole and Seabreeze, manufactured between January 2011 and February 2014.
Opposite actually. Combustion of most organic molecules react oxygen with hydrocarbons to produce water vapor. Fire is humidifying.
This explains why ventless heaters and fireplaces produce, in addition to toxic exhaust gasses, enormous amounts of water vapor. Enough to make it condense on your windows and walls.
1 pound of propane burned will produce 1.6 pounds of water.
Most released vapor is likely expelled out the chimney, plus due to increased humidity capacity of hot air it likely absorbs some from the home (especially with a fireplace, likely cooling down by absorbing water much faster than conducting its heat away) in some way before being expelled. A setup like this also likely causes a negative pressure, drawing air from outside which is also likely dry if it’s winter cold.
Also, water vapor released through the chimney is lost energy (even if the steam isn’t hot, moist air has more thermal capacity than dry air because water).
@bluGill
I find it unlikely that your dehumidifier would be catching fire in a fireplace. If that’s where you’re storing it, though, I’d ignore the recall.
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Not if it is a ventless heater which is what o was responding to.
There is a comment about ventless, but you responded at the same level rather than to it. Your comment was ventlessless.
Arrgh, my mistake .
In the short run the heat of combustion lowers the relative humidity (not absolute, but nobody every measures that). However most buildings lose heat faster than water vapor and so the continued combustion needed to keep warm eventually raises the humidity.
Now tell them why both AC and your heater are effective at dehumidifying the inside of your car so somebody can post a TIL.
The important thing is that how dry the air feels is based on how much water the air has in it as a percentage of how much it can hold (humidity as a %) and that colder air can hold less water.
Heating air is fairly straightforward. The air starts off cold and moderately humid (1 unit of water but the air can hold 2, meaning 50% humidity, a pleasant amount) and it is then heated up until it can hold much more but doesn’t have any extra water added to it (1 unit of water in the air still but now it can hold 4, giving only 25% humidity, very dry feeling).
AC takes outside air (let’s say 50% humidity with 2 units of water in the air and the air could hold 4) and cools it down, thus reducing the water capacity of it and forcing water to condense out of it (down to 1 unit of water in the air out of 1, with the other unit of water now being condensation dripping out of the system; the air is now at 100% humidity). This cold air then warms up inside your car as it fights with the warm air already in there, and this formerly cool air now has a greater capacity for water without increasing the amount of water in it, leading to a lower humidity (still 1 unit of water in the air, but now warmed up a bit so it can hold 3 units, giving only 33% humidity!).
I hope this makes sense and is helpful
Probably because it’s conducted heat from your heater core and it’s not fire directly heating your cabin. Water from the combustion is expelled through your exhaust. ¯_(ツ)_/¯