Will Furrion Chill Cube FR49TD Work On 2021 Keystone Montana 385BR?
Updated 10/30/2025 | Published 02/18/2025
Question:
I have a Montana 2021 385BR. I would like the Furrion 18,000 BTU to help cool the unit better. Could I use this unit to replace my main unit?
asked by: Bill
Expert Reply:
Hello Bill, thanks for reaching out. The Furrion Chill Cube RV AC # FR49TD can be used on your 2021 Keystone 385BR, provided your 5th wheel uses a ducted AC system. If your AC system is ductless it will not work.
So long as your system is ducted, the # FR49TD comes with everything you need to add the Chill Cube AC unit. You get your AC, controller, and distribution box. We have been getting a ton of good feedback on these Chill Cube units. Folks say they are quiet, efficient and effective.
The video I linked below will show you this AC system in more detail. Feel free to reach out and reply below if there is anything else I can do to help.
Product Page this Question was Asked From
Furrion Chill Cube Variable Speed RV AC System w/ ADB & Thermostat - 18K Btu - Ducted - Black - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Black
- Furrion
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Furrion Chill Cube Variable Speed RV AC System w/ ADB & Thermostat - 18K Btu - Ducted - Black - R32
- Search Results: furrion chill cube
- Q&A: What Variable Speed Air Conditioner Can I Replace My Rooftop Unit With?
- Q&A: Furrion Chill Cube Startup Amp Draw and Generator Compatibility
- Q&A: Recommended Furrion Chill Cube RV Air Conditioner w/ Heat Pump for a Ductless Setup
- Q&A: Does Furrion Chill Cube With Heat Pump Come With Everything for Installation
- Q&A: Replacement 18,000 Btu AC For Duscted Set Ups
- Q&A: Will Furrion Chill Cube RV AC Unit Work on 2022 Freedom Express 238BHS
- Shop: Furrion Chill Cube RV AC System w/ Air Distribution Box & Remote - 18,000 Btu - Non-Ducted - R32
- Q&A: Can Furrion Chill Cube Operate With RV Furnace
- Shop: Advent Air RV Air Conditioner System - 15,500 Btu - Single Zone - Ducted - White - R32
- Shop: Furrion Chill Cube RV AC System w/ Air Distribution Box & Remote - 18K Btu - Ducted - Black - R32
- Video: Furrion Chill Cube RV Air Conditioner Review and Installation - Travel Trailer Edition
- Shop: Furrion Variable Speed Chill Cube RV AC w/ Heat Pump & Air Distribution Box - 18K Btu - Ducted - R32
- Shop: Furrion Chill Cube Variable Speed RV AC System w/ ADB & Remote - 18K Btu - Ducted - R32
- Shop: Furrion Chill Cube RV AC System w/ Air Distribution Box, Thermostat - 18K Btu - Ducted - White - R32
- Video: Review of Furrion Single Zone Thermostat Chill Cube Ducted RV AC - LC74DX
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Search Results: trailer tires and wheels
- Search Results: rv air conditioners
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Search Results: trailer jack
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Brake Controller
- Video: In-Depth Look at the B&W 5th Wheel to Gooseneck Pin Box
on RV Air Conditioners
Jesse M.
10/30/2025
Hey Bill, how did the Furrion Chill Cube work out on your Montana 385BR? It sounds like a great option for better cooling if your setup is ducted. Your experience could help others looking to upgrade their main AC unit too.