Replacement Furnace for a Suburban 40k
Updated 10/16/2025 | Published 10/14/2025
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Question:
I have a 2021 Riverstone Legacy 39rkfb. My Surburban 40k btu has shorted out and quit working. What is a good replacement. Thanks
asked by: John H
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Expert Reply:
Hey John, thanks for the pictures and the information. The Fogatti Quiet LP Gas RV Furnace item # FG65FR would be a good replacement for your 40k Suburban furnace. If you wanted to match your current one you can get item # FG45FR, which is an identical furnace it just comes with a black door.
The Fogatti item # FG65FR in white and item # FG45FR in black are 35,000 btu units that run off of LP. They measure 20" deep x 7" tall x 16-1/2" wide. The exterior doors measure 13-1/4" wide x 9-1/4" tall.
Are you planning on doing the installation yourself or are you taking your 5th wheel somewhere to have it installed?
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Product Page this Question was Asked From
Fogatti Quiet LP Gas RV Furnace - 35,000 BTU with White Door
- RV Furnace
- Doored
- 5th Wheel
- Motorhome
- Travel Trailer
- 35000 Btu
- 22W x 8T x 18D Inch
- White
- Fogatti
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John H.
10/16/2025
I’m doing the installation myself. It’s not that hard, and I’ve lost all faith in RV dealerships and their repair services