Best RV AC Unit Replacement Recommendation for Dometic DuTherm AC Units in RV
Updated 03/25/2026 | Published 03/22/2026
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Question:
Dometic Duotherm ACs Model 630035.321. I need to replace one of the above units.I have a 2005 Holiday Rambler with 2 units. Front one died. What are your suggestions for a complete replacement of the front unit only
asked by: dave m
Expert Reply:
Hey Dave, the best RV AC units around are the Furrion Chill Cubes like the part # FR49TD for if you have a ducted setup or the part # FR27TD for if you have a ductless setup. These are the quietest, coldest blowing, and also draw the lowest amount of current as well. These will have to be completely independent of the Dometic setups you have now as there's no way to have the two setups communicate. Reason for this is after January of 2025 the government changed laws on the types of refrigerants that can be used and doing so made everything totally different.
How did you like the Dometics?
Product Page this Question was Asked From
Furrion Chill Cube RV AC w Air Distribution Box, Thermostat - Ducted - 18,000 Btu - Black
- RV Air Conditioners
- Complete AC System
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Black
- Furrion
more information >
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Dave M.
3/24/2026
Arr these slim units? The domestics work great, the heat strips are good for chilly mornings