AC: How big?

[billboats]

I have a 270 SD with a 7000 BTU AC/Heat unit. It just won't keep the cabin cool when the outside temps get into the 90's. Living in Texas, AC is vital. How many BTUs should I consider?

 

[CV-23]

Mine is 12,000 BTU cooling only and works great, Mike.

 

[Dick270da]

My 270 has a 19,000 BTU unit. If it's in the 70's or at night you need a parka. When it's a 105 and 60% humidity it just barely keeps up during the day.

 

[JVM225]

My 300 Sundancer has a 10,000 BTU unit that freezes us out during the hot summer here in the Northeast. You probably need a little more to deal with the heat there. I imagine a 12,000 BTU unit should be more than enough.

 

[95290]

Try sitting an 8" or 10" fan in the cabin directed towards the return air register. It probably won't cure the problem, but will help move the air.

 

[300SR]

12000BTU will do it.

 

[Alegria]

Agree. We installed a 12K unit in our 90 280SD and it cooled the heck out of the cabin no matter the outside temp.