What Furrion Chill Cube Can I Use for a 2016 Keystone Montana w/Whisper Quiet Ducting?  

Question:

Expert Reply:

Hi Keith,

The Furrion Chill Cube like part # FR49TD, requires the air distribution box to be used with it in order to properly secure the unit and for it to work properly. The only way to install a Chill Cube into your Keystone would be buy cutting 14 1/4" x 14 1/4" holes in the ceiling so you can install the air distribution box underneath the rooftop unit. The Furrion Chill Cubes are also currently only offered as single zone units, because of this you would need to install a thermostat for each unit (assuming you have more than one AC unit on the RV). Or use a Furrion Chill Cube unit that doesn't have a thermostat and use only the Follow Me remote instead, like the part # FR67TQ so you don't need to install another thermostat in the wall. Because of refrigerant changes in 2025 that required new wiring in AC units, older thermostats made before 2025 are not compatible with any new air conditioner. They are great air conditioner units, for any new AC for your camper it'll be difficult to find a replacement since you have hidden plenum ducts.

From what information I could find, the only air conditioner unit that doesn't require an air distribution box to function is a Coleman Mach Quiet Series that features the Ducted Quiet (DQ) configuration, so it'll drop into internal ceiling ducts. We do carry a Coleman Mach Quiet Series Mach 15 part # CM86GR rated for 15,000 BTUs that says its compatible with Coleman-Mach ducted RV AC systems so if you're able to confirm with Keystone that your duct system is compatible with Coleman-Mach ACs this would be a good replacement without needing to cut into the ceilng.

Have you used Coleman-Mach air conditioners on your RV before?

expert reply by: Claire H

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Keith

11/5/2026

Claire, Thank you for the response. In my research that’s what I was thinking also. We have two AC on the RV. Also have upgraded to MicroAir thermostats to control them. Going to order ones with heat pump in white to assist the propane furnace when needed. Can you confirm the correct part number please. I will take photos and document the install and post them back up here. Thank you again Keith

Claire H.

11/5/2026

@Keith Which white unit? The one with just the Follow Me remote or the unit that has the remote and thermostat?

Keith

11/5/2026

Claire I missed the link you included. We are good to go Thank you

Claire H.

11/5/2026

@Keith Ope, sorry! I missed this comment while answering the first one. We'd definitely be curious to hear about how your installation goes! If you have any other questions, feel free to reach out!