A 15,000 BTU heat pump in a low-profile shell, for big rigs that are tight on height; RecPro’s taller 15K does the same job for less.
Amazon $1,674.95
A light, low-cost 15,000 BTU replacement for a Brisk II or another standard-profile unit when roof height is not a concern.
- 15,000 BTUCooling
- 16.2 ARunning current
- 71 AStarting current
- NoHeat
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Light at 66 lb for a 15,000 BTU unit, easier to lift onto the roof
- Same rated current as the 13,500 BTU model, so more cooling for the same draw
- Fits existing Dometic and most competitor ceiling assemblies
- Stands 14.4 in tall on the roof
- High starting current; a small generator may need an added soft start
- Needs a separately bought ceiling assembly or controls
The Dometic FreshJet 3 family
Every Dometic FreshJet 3 model we rank, smallest first. Ratings compare each against its own size.
| Model | Cooling | Rating | Price |
|---|---|---|---|
| Dometic FreshJet 3 13,500 BTU | 13,500 BTU | 2.7/5 | $867.80 |
| Dometic FreshJet 3 15,000 BTU (this one) | 15,000 BTU | 2.6/5 | $1,008.05 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | FJX3573M |
|---|---|
| Cooling and power | |
| Cooling capacity | 15,000 BTU |
| Heat | No |
| Running current | 16.2 A |
| Starting current | 71 A |
| Soft start built in | No |
| Install | |
| Ceiling setup | Ducted or non-ducted |
| Ceiling assembly included | No |
| Height above roof | 14.4 in |
| Weight | 66 lb |
| App or remote monitoring | No |
| Noise and warranty | |
| Warranty | 1 year |
| Released | 2022-11 |
Alternatives in this size
For owners who need a low profile unit with variable-speed efficiency and heat pump heating, and will pay a premium for it.
Camping World $1,899For larger trailers and motorhomes that need 15,000 BTU in a low profile, and for replacing a Penguin II High Capacity.
Amazon $1,329.99Compare
Compare the Dometic FreshJet 3 15,000 BTU with any other RV air conditioner →
More from Dometic: every Dometic product ranked.