Will a Furrion Chill Cube RV Air Conditioner Fit the Some Cutout as a Dometic AC?
Updated 08/08/2025 | Published 06/07/2025 >
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Question:
Will the Sutton a/c 18,000 btu fit where a domestic ducted unit is on a 2020 fuel 287 toy hauler
asked by: Neil G
Expert Reply:
Hey Neil. The 18,000 Btu Furrion Chill Cube RV Air Conditioner item # LC34DX fits a 14-1/4" x 14-1/4" cutout which is pretty standard on RV's. If you meant to write Dometic instead of domestic then yes it'll fit in your existing cutout.
To swap out a Dometic AC with one of the new Furrion Chill Cube units, you'll have to swap out your air distribution box because anything made before 2025 isn't compatible anymore due to the new R32 refrigerant. Since you have a ducted system you will want the Furrion Chill Cube RV Air Conditioner w Air Distribution Box item # FR39TD.
If your RV has a furnace you'll have to install the Furrion Chill Cube RV AC w/ Air Distribution Box item # FR49TD, which includes the thermostat you'll need to control your furnace.
What kind of AC system do you currently have and does it have an air distribution box? You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.

Dennis J.
8/7/2025
Have 2005 American Heritage with three Coleman penguins with ducted system.. Looking to replace one with a Furrion. It also has an aqua hot system that shares one thermostat for both a/c and heat. The control wire(s) are 6 conductor phone cable. Was hoping by now there is a solution to add the Furrion to older existing systems. If not, what is the solution? Thank you, Dennis


Roy L.
8/8/2025
Jerred I am thinking about replacing my current Dometic AC units on my 2006 Fleetwood Expedition with the 18K Chill cube. I understand that there is currently not any heat strips available for this but will be in the future. My RV has two gas furnaces that I would need to control. Is there a multi zone thermostat that will control the chill cube (future heat strips) and my two gas furnaces? Thank You I enjoy shopping with Etrailer



Product Page this Question was Asked From
Furrion Chill Cube Variable Speed RV Air Conditioner - 18K Btu - Ducted - Black - R32 - AC Unit Only
- RV Air Conditioners
- AC Unit Only
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Black
- Furrion
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William
6/14/2025
Jerred, I currently have Dometic Penguin II's. in a 2013 Entegra Anthem. So not only is it a Ducted system..The two front ACs are hidden by oval mirrors on the ceiling. So wondering about thermostats. I've heard the Cielo breeze Max is a good possibility. Also whats the deal with late july or August for the Cube Ducted ADBs? I also have Aqua Hot and one of my Penquin II has a heat pump in it. William