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With 30,000 Btu of heat, we recommend this built-in furnace for RVs about 30' long. It will get your RV nice and toasty far quicker than a space heater, and it includes a door so the unit can be serviced from the outside.
Features:
Specs:
Bigger isn't always better. Getting a furnace that's bigger than you need can cause problems. A major one is that it will burn even more propane than you need.
You really only need about 1,000 Btus for every foot of RV length. For example, a 20,000 Btu furnace would be good for a 20' trailer or motorhome. That's why we'd recommend this one for a 30' trailer.
If you're installing a new furnace, the decision between door or doorless furnace will depend on where its installed and how you can get to it for maintenance or repair. With a doorless version, only the vent plate will be visible on the outside of your RV. This gives you a cleaner look, but it also means that you must be able to access the furnace from the inside of your RV.
The doored version isn't really a door, but more of an access panel that is screwed in place. You shouldn't need to access your furnace regularly, but when you do, you will need that access panel if the furnace is mounted in a place that you can't easily get to inside your RV.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, neighbor Steven here with etrailer.com. Let's take a real quick look at our Dometic RV Furnace running on LP gas with an automatic pilot light, 12 volts of DC current, 30,000 BTU rating, with a black access panel or door included. So folks, wanna zoom in before I take this access panel off just so you can kind of see a closeup of it. Now I'm gonna go ahead and remove this access panel so I can show you the inside and also give you a better view of everything. So this guy here, that's the main one from the outside, it says hot embossed on the metal. You've got the main metallic cover here and you've also got the plastic frame with all the slots and holes in it for installation.
Again, I'm gonna set that to the side. Some quick dimensions for you. Overall, the width 16 and a half inches wide, seven inches tall and 20 inches deep or long depending on how you wanna describe it. Now folks, this furnace will quickly and efficiently heat the interior of your RV's camper. It can replace or upgrade or even add a furnace if you don't have one to your RV or camper.
Now because it's propane powered, it's gonna be great for boondocking. You can use it without electric hookups. The propane hookup is underneath this rubber plug here that they put in there for shipping, and you have a relight that can automatically relight until the heater is switched off. Now it also uses an automatic DSI gas powered, or gas pilot rather, to reduce risk of gas leaks, but also increasing your fuel efficiency. It also supports a low turbulent air that's gonna provide nice quiet operation.
As you can see, it's compact. You can install either horizontally like I have it or vertically,` totally up to you. Now the dash or main panel here I wanna call it has an all off switch. It also has an LED light that can flash. If it's flashing, that's basically flashing out a diagnostic code to you and the instruction manual will tell you what fault is present if that happens.
Now you would need a controlled thermostat unit sold separately to complete this installation. I'll put that on number on the screen. You also are gonna need some RTV sealant or a beetle tape that's sold separately as well. You can pick it up here or locally and also some number six and number or number eight by half inch panhead type AV screws or self-tapping screws. Again, sold separately. You may have to get them at your local hardware store. So the stuff you're seeing down here, there's four screws that are for the main white cover panel and two screws for those two mounting brackets there. That's all they give you. Keep in mind, depending on your specific needs, you may or might not need the extra screws, but that's just my information I got out of the instruction manual as the size and everything you might need. You also get three of these duct adapters and they could go on the two top ports, the two sides, two on my side, and also three more in the back. So you got options for return air and all that kind of stuff as well. So a nice little furnace unit. It is ETL certified. A great addition to your motor home travel trailer or fifth wheel, weighs about 33 and a half pounds, runs on 90 watts, and again, the power supply, about 12 volts of DC current, the amperage is about seven and a half amps. Well folks, this will wrap it up for our quick look at this Dometic RV Furnace, again, with the included black access panel and the front piece here as well. I'm Steven, that's gonna wrap it up. Thank you so much for your time, folks. Stay safe out there and have a great day.
Ratings & Reviews
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Heather A.
4/11/2026
Thanks for sharing that, and I’m sorry you’re dealing with that right out of the box. That definitely doesn’t sound normal. You’ll usually hear the fan spin up and a click when it ignites, but grinding isn’t something you should be hearing. That does point toward an issue with the blower or motor. Before running it much more, it might be worth double checking that nothing shifted during shipping or install, like a loose housing or something contacting the fan. If everything looks good and the noise is still there, this is something we’d want to take care of for you. If you can, a quick video of the noise would really help us confirm what’s going on and get you taken care of as quickly as possible