Replacement RV Furnace Recommendation for Atwood AFMD35121
Published 10/21/2026
Question:
I have an AFMD35121atwood. I’m looking to swap in a fogatti unit as seamless as possible. I know there’s 3 ducts on it as well. I currently have it vertically mounted with just a small vent cut out.
asked by: Jordan
Expert Reply:
Hey Jordan, welcome back! For your Atwood AFMD35121 (35,000 BTU) furnace, the closest Fogatti option is the Fogatti InstaHeat Ultra 35,000 BTU #FG55FR, which is the doorless version and your best option.
However, I wouldn't consider it a direct drop-in replacement but the install will be simpler since you can mount this vertically like you have. The three vents this has are what you'd need as well.
How did you like the Atwood?
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
more information >
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