De-humidifying question

[dxkj]

Anyone know how many gallons of water you would have to suck out of the air to get it down to 50%?

Im also trying to find a good dehumdifier that will keep it down near 20% if possible.

 

[dxkj]

forgot to add, 75-85 degrees


Im guessing to dry it out instantly would pull just about a gallon of water out?

 

[Scarpozzi]

I have no clue, but I do know that you might be better off buying 2 dehumidifiers and addking more as you think you need them. It's hard to say what it will take to maintain 20% because we don't know the source of the humidity.

BTW...when things get below 30% Relative Humidity, it's a lot easier for things to hold a static charge. You might want to shoot for 40%

 

[dxkj]

Originally posted by: Scarpozzi
I have no clue, but I do know that you might be better off buying 2 dehumidifiers and addking more as you think you need them. It's hard to say what it will take to maintain 20% because we don't know the source of the humidity.

BTW...when things get below 30% Relative Humidity, it's a lot easier for things to hold a static charge. You might want to shoot for 40%

Yeah, honestly i will be happy with 50%

This is outside, in a garage, full of small furry animals that breath out hot humid air

24' x 24' x 8' tall

 

[Juice Box]

the de-humidifier in my basement is a lifesaver....amazing how much water we can take out of the air in a day!

 

[notfred]

EDIT: doing this whole thing over.

This page: http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/watvap.html

Says that at 86 degrees, there are 30.4grams/cubic meter of water in the air.
4600 cubic feet is 130 cubic meters.

130 * 30 = 3900 grams.

That's 3.9L of water, or just about one US gallon. Half of that (to get down to 50%) would be about half a gallon.

I think this is about accurate.

 

[MrBond]

When I was in college, the house we rented had a room in the basment. I was there for two semesters and when I moved in in May, it was horrible. The walls were wet it was so damp down there, I had to sleep with my bed in the middle of the room for a few nights until I could get it to dry out with the old dehumidifier from the landlord.

I went out to Sears and bought one of their Kenmore dehumdifiers. I don't remember which size I bought, but it was mid-range. I think I kept it at around 40-50% and it ran ALL THE TIME in the summer. I'd have to empty it two or three times a day. I finally got an old hose and ran it right into the floor drain of the basement. It continued to run like that all summer and into the fall, only in November-December did it not run 24x7

It actually did a pretty good job in an area about the size you want to dehumidify. The goal was to dehumidify my room, but I kept it sitting outside the door, so the whole basement was comfortable.

I'd check with Sears. I think I paid $100-200 for my dehumidifier and it was worth every penny.

 

[Aquaman]

Humidex FTW

Uses less energy then a dehumidifier and you don't have to worry about emptying buckets of water.

Cheers,
Aquaman

 

[iwantanewcomputer]

to go from 80%RH to 50%RH at 80*F, you need to go from an absolute humidity of 8.86g/ft3 to 5.54g/ft3. the room is 4608 ft3, so you need to remove 15298g water = 15.3 liters...im not converting that to gallons, sorry.

huh...the online calc i used has an error in it's conversion. i think it used the ratio ft:meters not ft^3:meters^3...anyway 136 meters3*(20.3g/m3 -12.7g/m3)=1.03kg=1 liter.
this is more accurate than notfred's approximation because he's assuming a starting humidity of 100% and going to 50%

 

[BoomerD]

I've kept reef tanks for many years, and the evaporation from them is immense. I tried a Whirlpool dehumidifier a couple of years ago to reduce the humidity in my house...The dmmed thing drew over 700 watts, and was rather noisy. It did take out over a couple of gallons of water every day however.
http://www.myenergystar.com/dehumidifiers.aspx?tab=calculator

 

[dxkj]

Originally posted by: Aquaman
Humidex FTW

Uses less energy then a dehumidifier and you don't have to worry about emptying buckets of water.

Cheers,
Aquaman

Hrm, I dont see the cost on their homepage

 

[Aquaman]

Originally posted by: dxkj

Originally posted by: Aquaman
Humidex FTW

Uses less energy then a dehumidifier and you don't have to worry about emptying buckets of water.

Cheers,
Aquaman

Hrm, I dont see the cost on their homepage

I know the small apartment unit cost $400 Cdn

Shoot them an e-mail...... they will get you a quote with someone in your area.

Cheers,
Aquaman

 

[Aquaman]

Also consider installing a HVAC system to your heating system.

Cheers,
Aquaman

 

[0]

20%??? That's way too low.

 

[Aquaman]

I think as long as your humidty is below 60%...... there should be no problems with your house (ie. mold & rot)

Cheers,
Aquaman