Replacement Option For Dometic DFMD35131 Furnace

Updated 01/06/2026 | Published 09/21/2024

Products Featured in This Question

Dometic RV Furnace - Propane - Automatic Pilot - 12V DC - 40,000 Btu - Black Door

(8)

$1654.00

Dometic RV Furnace - Propane - Automatic Pilot - 12V DC - 30,000 Btu - Black Door

(8)

$1424.99

Question:

I have a DFMD35131 furnace in my RV. Do you have anything that I can replace it with. Thanks Chuck

asked by: Charles K

Expert Reply:

Hi Charles,

From what I could find, your DFMD35131 furnace is a 35,000 Btu that is 16-1/2" wide, 7" tall, and 20" deep. We do have a Dometic furnace that is the exact same size, but a 30,000 Btu unit, the Dometic RV Furnace # DMC38RR.

Or, if you have a bit of extra space and want to go to 40,000 Btu there is the 16-1/2" wide, 9" tall, and 20" deep Dometic RV Furnace # DMC48RR.

expert reply by: Kyle S

Jesse M.

1/5/2026

Hey Charles, how did things go with the Dometic furnace options for your RV? Did the 30,000 or 40,000 Btu model end up being the better fit for your space? Your update could make it easier for the next person replacing the same furnace.

Charles K.

1/5/2026

The 30,000 was the same exact size. The gas line and valve also lined up perfectly. Have had no issues with it and it’s been freezing here in Pennsylvania

Jesse M.

1/6/2026

@CharlesK Awesome, thanks for confirming. That is great to hear the 30,000 BTU was a direct match and that the gas line and valve lined up without any hassle. If it is keeping up in freezing Pennsylvania temps, that is a solid endorsement. Appreciate you following up!