Looking For Complete AC System For Older Camper 5th Wheel Trailer That Had Ducted Vents
Published 04/27/2026
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Question:
I have an older fifth wheel with ceiling vents, and I’m trying to decide if I should go back with 13.5K or move up to 15K. It’s around 31 feet and we mostly camp in the South. What would you recommend?
asked by: Chris
Expert Reply:
Hey Chris, for a 31-foot fifth wheel in the South, I’d lean toward a 15,000 Btu system, and in this group that would push more toward the Roughneck Mach 15 # CM65RR if you want the extra cooling capacity. If your old unit struggled in summer heat, moving up makes sense.
Since you mentioned ceiling vents, it sounds like you have a ducted setup, and these Coleman kits are for ducted RV systems only. If your old unit kept up pretty well and you’re just trying to make a smart replacement, the Signature Mach 3 # CM95RR could still do the job.
These units are the heavy duty Roughneck lineup, which are built for off-road rough usage. What model RV do you have and what is the old ac unit?
Product Page this Question was Asked From
Coleman-Mach Roughneck Mach 15 RV Air Conditioner System - 15K Btu - Ducted - Polished White - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- White
- Coleman-Mach
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