Is a 13,000 BTU AC enough for a 22' trailer?

You should ok with that size trailer. I recommend you get a fan for that mid day boost.

If you are having issues with your AC, watch the video below. I have a 15k that didn't seem to be functioning the way it should. After watching the video I inspected my AC and found the foam separator to be very mis-aligned with a huge gap so that the hot air was mixing with the cold air. I was almost to the point of installing a second AC...this video saved me spending big bucks!

Increasing AC Performance.

Come is to SC or GA this weekend and park in the sun and you can find out. Expecting temps close to 100*.

If you can, get a heat pump model. That way, when you are in a campground and the nights are cool (40 ish or so) you have some heat without burning up your propane. My MotorHome, now sold, had a heat pump and I made good use of it on several occasions.

Charles

If you can, get a heat pump model. That way, when you are in a campground and the nights are cool (40 ish or so) you have some heat without burning up your propane. My MotorHome, now sold, had a heat pump and I made good use of it on several occasions.

Charles

18' trailer with a large slide, 13.5 worked fine even in 110F heat in southern NM with 5 people inside. For us the bigger problem is the passthrough space, that heats up when the nose cap is in sunlight (why they chose to paint the diamond plate black instead of leaving it stainless I have no clue) and heats the master bed from underneath. I'm fixing that soon with a 12V computer fan (Noctua NF-A12x25, virtually silent) to force cooled or in the shoulder seasons heated air into the passthrough.

wayfun wrote:
We are considering a Flagstaff Micro Lite 21ds. The standard AC is 13,000 btu? Is that adequate or should we upgrade to the 15,000 unit?

Thanks,
Dennis

Check the price of the upgrade. When we ordered our 35 ft trailer it was only like $150 to upgrade to the 15K AC. Glad we did. We had the 13.5K unit in our old 25 ft trailer and it could barely keep up on a very hot day.

13.5k is sufficient.

It will be more than enough. No problem! I have a 15K on a 35' trailer. Takes a while to cool but keeps it plenty cool after that even into 90 degree days. My old 30' had a 13.5 and same thing. You will be fine

Atlee wrote:

If I were ordering one brand new, I'd go ahead and opt for the 15k unit, since that option at Jayco was only about $150 more and a little more never hurts.

A cheap upgrade, was a $181.00 option from Flagstaff two years ago for a Coleman and not Dometic garbage.