What is the Minimum Roof Thickness to Install the Furrion Chill Cube RV Air Conditioner
Updated 08/31/2026 | Published 11/18/2024 >
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Question:
What is the minimum roof thickness required the Furrion Chill Cube RV heat/pump. I have 1inch fiberglass
asked by: Anthony C
Expert Reply:
Hey Anthony,
The Furrion Chill Cube RV Air Conditioner # LC22BX requires a roof thickness of 3.5" to 6" according to the Furrion installation instructions.
Since your roof is less thick than this you'll need to install some bracing into your fiberglass. I'm attaching an installation video where Shane added some bracing to a Ford Transit in order to install the MaxxFan Deluxe # MA00-06200K that you can use as an example.

Anthony
8/31/2026
Where is that video at

Product Page this Question was Asked From
Furrion Chill Cube RV Air Conditioner - 18,000 Btu - Non-Ducted - Black - R32 - AC Unit Only
- RV Air Conditioners
- AC Unit Only
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Non-Ducted
- Black
- Furrion
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Kate F.
12/15/2025
Hey Anthony, how did things go adding the bracing for your fiberglass roof to fit the Furrion Chill Cube? Sharing what worked could help others with thinner roofs facing the same challenge.