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Topic: Dealing with high humidity? (Read 668 times) previous topic - next topic

Dealing with high humidity?

Just bought my first foretravel from my in-laws. We have sold our big house and down sized to a 99 u320 40.
I have been able to fix everything so far.
We are planning on living in it for a awhile. It has rained everyday
This summer, The humidity has been staying so close to inside temp we are rocking dew point. No leaks have
Fixed them but now it is hard to remove the Moisture without a dehumidifier which heats up and then Runs a/c all of the time.
Any suggestions?
99 U320 40
97 Jeep wrangler toad
Now full time 8 months
Starting a new brick and wood home
Chattanooga, Tn

Re: Dealing with high humidity?

Reply #1
In most cases, our A/C units are way over sized (BTUs) for the volume of our coaches. Consequently, they "short cycle", and in doing so, never fully dehumidify, which is by the way, the hardest job your A/C has to perform. Sometimes running just one, and/or keeping the vents closed nearest the thermostat will help it cycle longer, and do a better job of dehumidifying. IMHO
Steve & Ginny Hill
96 U295 36'/Wrangler
Tampa

Re: Dealing with high humidity?

Reply #2
Interesting, I catch all the water run off from the A/C while in the garage as the drains are not in the right place for the M/H,  Point is, I catch up to about 3 gal a day using only the front unit, we have had alot of rain in central Va this summer also.

Re: Dealing with high humidity?

Reply #3
I have not had an issue dehumidifying the coach. Have no idea how much water drains off but it s a lot. I set my ac at 68 and it will cool the coach down overnight and in the morning will raise it a bit.  Much easier to keep it cool than reduce the temps in 100+ degree humid days.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: Dealing with high humidity?

Reply #4
Running the dehumidifier gets 3 to 4 gals of water not counting the a/c units. I have rear set at 74 low fan and front at 77 auto we maintain 72 in the back and 75 in the front on a 90+ day.
We are no longer wet feeling but I know I'm using more power. I guess I will have to live with this right now. Humidity is now around 50% which is comfortable.






99 U320 40
97 Jeep wrangler toad
Now full time 8 months
Starting a new brick and wood home
Chattanooga, Tn

Re: Dealing with high humidity?

Reply #5
Steve & Ginny are exactly right. With the front on 77 the compressor isn't  running enough to wring out the humidity. Even when we go to south Lousiana in the summer we haven't had a humidity problem in any of our Foretravels.

We do keep the temp in the low 70's.  The cold coil is what removes moisture and if the compressor has cycled off it isn't happening.
Rick & Rhonda
2003 U320 4220  Build #6199
Was
91 36' GV 300 Caterpillar, 92 40' U280 300 Cummins, 97 36' U295 300 Cummins, 2002
U320 450 Cummins
(Guess we're hooked)

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Re: Dealing with high humidity?

Reply #6
I have a buddy that is based out of Missouri and has a dehumidified permanently installed on his '95 U320.  It sits behind the recliner and he has a drain hose going through the floor into the basement and through the basement floor.  He loves it and wouldn't be without one.  One additional usage is for drying clothes.  He will do multiple loads in the washer/drying unit that's in the coach but because the dryer is so slow they hang them up inside the coach and let the dehumidifier dry them overnight.
Yes, you will use more power but some of that is offset because the AC's will have to work less when cooling dry air.  I have a dehumidifier that I've used in my coach but don't need it so much since I moved to a dry climate.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho