3rd A/C Unit

Outside temps around 90 give or take, and the humidity probably 60-70, and it can be sunny or cloudy.

OP I feel your pain. What is the ambient temps. When your units gets too hot. How hot does it have to be before your current units fail to adequately cool your rig?

I would hope that the money I spent on my forest river product would provide me with plenty of insulation in the floors, walls, and under my white roof. I tried all the tricks.........except for tinting the windows, but nothing seemed to help. I would like a third unit for the extra cooling, but will it void my roof warranty or any other warranty for that matter.

I'll freeze you out of our 40' fiver when running both our 15000 and 13500 BTU
A/C's, and yes this is in 94° heat with zero shade. Set up fiver in driveway over the weekend prepping unit for trip and had to turn bedroom unit off when it was down to 74°. Main A/C is ducted but I had the dealer block off vents to the bedroom so it now only cools the front living room, kitchen and bathroom. Keep bedroom closed when not running bedroom A/C.

I see a lot of MH's with 3, and even 4, A/C units on top, and most of them don't have the same cubic space as the biggest FW's and TH's.

Lyle

If you have the windows for it you would be surprised at how much a cheap window unit helps the roof air. Last year in the high 90's the combination kept our 30ft ball to bumper trailer very comfy in the low 70's..

Doing a test on it today solo without the roof air in direct sunlight. 87 out and 76 in without any foiled windows or doors, just the shades pulled with the indoor/outdoor thermometer in the rear.

Rated 4.8 amp draw and 515 watts on this particular 5k unit that cost less than $100 on special and runs great on my little Honda.

I would pull the covers and make sure the gasketing is doing it's job keeping hot outside air from getting inside!

I bought gasket kits for the two Dometic Penguins and the difference was amazing. They are very sloppy with their gasket installation at the factory.

We have three 13,500's and it is marginal in a 41' MH. Winnie. (see sig.) in 100* temps.
Have to keep the MCD SHADES down on the wind shield and sunny side.
Have a appoint ment at the factory to get the Ac's cked. Out.

ddschuman wrote:
Just curious...would a fantastic fan or Maxxfan set to exhaust in the bunk room help pull the air into there to make it more comfortable? I am not sure how that would work but figure someone on this sight would know.

For me- I find that my air conditioners make more condensation inside if I have vents open in exhaust mode. I don't know why.

Old-Biscuit wrote:
40' 5vr......I'd change out bedroom one to a 15K

I have to agree with OldBiscuit. We have a 40ft. 5'ver with 2, 15K units and it more than does the job. I would swap out the bedroom unit, like we did, for a 15K heat pump. We did the swap for overall height. We were 13'8" with the original unit.

Enjoy the road. We do.

bigdon68