What is the Amp Draw on the Dometic RV Furnace DMC86RR?
Updated 01/27/2026 | Published 01/10/2026
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Question:
What is the current draw for the smaller RV furnaces, probably the 20,000 BTU models. I do a lot of boon-docking and need to keep electrical demands to a minimum Thank-you
asked by: Robert D
Expert Reply:
Hey Robert, welcome back! The 20,000 Btu RV furnaces like the Dometic item # DMC86RR you were looking at draw 4.8 amps. It runs off of propane, measures 20" deep x 7" tall x 12" wide, can be installed vertically or horizontally, and works great on trailer's up to 20' long.
Unless you have a compatible AC system, you'll need the Dometic Digital Thermostat item # DMC84RR to control item # DMC86RR.
What kind of trailer or camper do you have and how cold are you expecting it to get where you boon-dock?
You can add this information, along with any other questions you have, where it says Reply to Jerred H.
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Jerred H.
1/27/2026
Hey Robert, how did things go with the Dometic furnace and thermostat setup for your boondocking trips? Did the 4.8-amp draw work out well for keeping your power use low? Your feedback could really help others planning off-grid stays.