Which dehumidifier do you use?

[jpratt2]

Hi all: we have a 30' class C motorhome that's been stored all winter under a cover. It's gotten quite damp inside despite no leaks and several Dry-Z-Air desiccant containers spread around, so it's evident we need a dehumidifier.
Which ones would you recommend? How large/small? Floor or table-top?
I see that with some you can run a drain hose to the outside or to your gray water tanks.
Any feedback appreciated...thanks!

[doc_brown]

I’m in SoCal and I use two Damprid units in the coach October through May, and they are expended by that time. From June to October I’m traveling the country spending most of the summer on the east coast. During that time I’ll go through 6 units.

[badsix]

we have a 27' T/T and live on the Oregon coast so its damp to say the least. I stored our T/T under a carport for the winter and it started to show signs of dampness. I tried a heater, all that did was to cause the damp warm air to condense on the windows and vents and sometimes on the ceiling. we then bought a dehumidifier, an IVATION from Amazon its small and runs on 12v with a converter 110 to 12v. for storage its the best way to go and this one works excilent. just plug it in and close all windows and vents, I open all the cabinet doors and refer and your good to go. it doesn't have a drain but if you dump every 2 weeks or so its good, you could also very easily put a drain on it. our T/T is perfectly dry inside and smells nice and fresh. check it out on Amazon or Google.
Jay D.

[stevenal]

Check the temperature rating of whatever unit you choose. Most are intended for heated spaces.

[ksg5000]

I live in NW and occasionally run a heater if things get too moist. You likely already own an electric heater and can attach that to a timer.

[ktmrfs]

get a compressor driven dehumidifier. while there are a bazillion brands of them, they are ALL made by only a couple of mfg. Heir is one major mfg.

So, shop around and just pick up one with the price, features and size you want.

the compressor ones (basically an AC unit) will pull upwards of 5 gallons of water out of the air/day if needed.

[path1]

I forget size but we're happy with one we got from Ace hardware. Flat top so toss stuff on top of it books, drinks, etc I keep it beside chair. But small enough that I can put in sink. Picked up 2 of these (link below) to make sure moisture levels are OK. Such as in closets or way up front. Ours has a threaded plastic port I attach a hose to and drain outside when we had RV storage/campspot away from house. At house I drain and check RV once a week. But when you first start using dehumidifier it takes awhile to get RV's dry'd out, you'll be surprised how much water you get out of it first couple times. Actual dehumidifier has gauge, but little ones make sure entire RV is good. All my drawers, cabinets cracked, so no trapped air.

https://www.amazon.com/dp/B004167OY4/ref=asc_df_B004167OY45418653/?tag=hyprod-20&creative=395033&cre...

available from cigarland in Georgetown (Seattle) or order online. Always within 1 or 2 % from national weather service. I strive for mid 50's.

[path1]

.

[pianotuna]

You may find that a simple electric heater is all that is needed in a storage situation. Get a humidistat and try a heater.

[GordonThree]

mobeewan wrote:
I've got a 25 gallon per day Frigidare I bought at Lowe's a few years ago. I'm going to add a drain tube to connect to that will penetrate the floor next to the low point drains for summer time storage use only The end of the tube under the trailer could ice up in extremely cold weather causing the flow to stop. For winter use I put the humidifier in the bathroom and run the hose into the tub. You might need to slightly elevate the humidifier to make sure the water runs into the tub. I open the gray tank valve to let it drain so the tub doesn't eventually overflow. It doesn't stay cold enough long enough for the grey water tank drain pipe to freeze up so the tank and tube don't fill up.

I'll cast another vote for the compressor dehumidifier ... I originally started with a 20 pint model, and it did nothing to combat my sweaty body and a wet dog after hiking around in the summer heat lakeside, or snow covered trails in the winter. Upgraded to a 90 pint model and it works great.

Get the biggest one you can find that fits somewhere convenient.

[2oldman]

Things can get wet in the "Nortwest". I kept mine heated. That's a pretty good de-condensationer.

[mobeewan]

I've got a 25 gallon per day Frigidare I bought at Lowe's a few years ago. I'm going to add a drain tube to connect to that will penetrate the floor next to the low point drains for summer time storage use only The end of the tube under the trailer could ice up in extremely cold weather causing the flow to stop. For winter use I put the humidifier in the bathroom and run the hose into the tub. You might need to slightly elevate the humidifier to make sure the water runs into the tub. I open the gray tank valve to let it drain so the tub doesn't eventually overflow. It doesn't stay cold enough long enough for the grey water tank drain pipe to freeze up so the tank and tube don't fill up.

[ctilsie242]

First of all, don't bother with the Eva-Dry dehumidifiers. Those are Peltier based, and get tablespoons of water out of the air, pretty much worthless.

Get yourself a compressor based dehumidifier that pulls pints out of the air, route the drain to the sink or bathtub, crack open the gray water valve and put a screen over it (so insects and critters don't go in), and call it done.