Replacing Dometic AC Units On 2018 Airstream With Furrion 18K BTU Ducted Units
Updated 07/02/2026 | Published 06/27/2026
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Question:
Looking to replace both the Dometic AC units that are on my 2018 Airstream Tommy Bahama edition RV trailer. I would like to replace them with the 18k BTU Furrion units in white, also ducted as that is how the Dometics are configured. Does Furrion make a thermostat that will control both units 2 zone as well as my gas furnace not interested in a heat pump? If so, could you build a complete list of components with part numbers that I would need to purchase from you for this AC RandR.
asked by: Gene D
Expert Reply:
Hey Gene, thanks for reaching out. Yes, we do have the 18K Furrion AC system you are looking for. Here is what I recommend:
- Furrion Chill Cube RV Air Conditioner w Air Distribution Box - Ducted - 18,000 Btu - White # FR99TD
This comes with everything you need to replace/upgrade your AC system. You get the 18K rooftop unit, ducted distribution box and wall thermostat/remote. You'll need two of these to replace both units.
That said, Furrion does not offer a thermostat that can control both units at once, so each unit will have its own thermostat. Honestly, I usually prefer to have it set up like that anyway because you have a bit more control over each zone and how cool you want it.
Also, the included thermostats are for AC only, so you'll need to have a separate thermostat for the furnace. If you already have a wall thermostat that controls the furnace you can just keep that in place. If you need a new one, a simple thermostat like part # CAM09221 is what I recommend. That would be for the furnace only - the Chill Cube units need their own dedicated thermostats.
Do you usually camp in a lot of warmer climates?
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Product Page this Question was Asked From
Furrion Chill Cube Variable Speed RV AC System w/ ADB & Remote - 18K Btu - Ducted - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- White
- Furrion
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on RV Air Conditioners
Hudson
7/2/2026
We picked up the Chill cube to replace an old dometic AC. Put it on the roof of a class A diesel pusher. Works well , it is cold, moves air. We have both ducted and non ducted abilities, works for both. We use the hand held remote for a thermostat. Negative, First trip out, two weeks at the beach, when the compressor kicks on and slowly ramps up, It has a vibration. I went back and checked mounting bolts and stuff to make sure it wasn’t something else loose and rattling. Nope. Has an issue. So far , still makes cold air and moves a good deal of air.