The 4 Best Enclosed Trailer Heater Kits – Reviews 2024

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The best heaters for enclosed trailers are the ones that can keep you, your friends, your family, and your pets warm on chilly nights out of the house. Enclosed trailer heaters come in different varieties to suit the needs of any outdoorsman who prefers a bed to a bedroll. Generally speaking, you can find heaters that use either electric or gas, just like the heaters you may use in your garage.

But trailer heaters are special. They’re designed to be portable, easy to use, and safe. So while other heaters may be capable of warming 1000 square feet, enclosed trailer heaters utilize low power drain for a more consistent warmth. If you like camping in the fall, an enclosed trailer heater is essential.

Here are our recommendations for the 4 best enclosed trailer heater kits on the market:

Enclosed Trailer Heater 1: Mr. Heater F232017

The Mr. Heater F232017 Buddy radiant heater is a low-profile unit packed with power. This enclosed trailer heater is capable of up to 9,000 BTUs of output, which is enough to heat more than 200 square feet at a time!

The cutting-edge heating technology also makes this unit about 99% efficient. That means you get every cent’s worth of value from your propane whenever you heat your RV or trailer. Best of all, whenever your propane canister runs low, you can just swap it out for another one to keep the heat coming.

In addition, Mr. Heater thought of everything when it comes to safety. This unit’s pilot light extinguishes immediately if it’s tipped over, and low oxygen levels make the whole unit turn off right away. It comes with a swivel-out regulator, and when you want to move the unit, you just pull out the handle and go!

For the money, you simply can’t beat the power, convenience, and safety of the Mr. Heater F232017, one of the best enclosed trailer propane heaters around.

Mr Heater Portable Buddy in truck bed with topper.

Enclosed Trailer Heater 2: Mr. Heater MH18B

When you want a powerful and portable propane heater, the Mr. Heater MH18B has you covered! This enclosed trailer heater kit has an output up to 18,000 BTUs — enough to heat nearly 500 square feet at a time.

That incredible power is coupled with an ultra-safe pilot light system that extinguishes the flame in the event of tips or malfunctions. With a high-efficiency interior as well, you can be sure you’re using your propane to the fullest extent whenever you lock a tank into this heater.

Plus, if you ever want to change the temperature in your trailer, you can make a quick turn of a knob to get to a more comfortable heat level. The comfort-grip handle and buffered exteriors make it easy to pick this heater up and move it, too — without the risk of denting or damaging anything you bump into!

'Big Buddy' Mr. Heater, first use/review. MODEL: MH18B

Enclosed Trailer Heater 3: Camco 57331

The Camco 57331 Olympian Wave-3 catalytic heater is a powerful, versatile enclosed trailer heater that make it ideal for camping.

Wave heaters have an advantage over most other heaters in that there’s no noise from operation. The Camco Wave-3 trailer heater doesn’t have any fans or blowers, which means it’s almost perfectly quiet when in use. Better yet, it doesn’t draw any electric or battery power, so it’s ideal for boondocking or dry camping.

While this trailer heater works best in areas 100 square feet or smaller, it performs better in well-insulated trailers. The low-pressure gas fuel makes it safe to use inside confined spaces, and safety shut-off valve prevents unintentional ignition.

If you want a heater that won’t use gas or make noise while you sleep at night, then this is the heater for you! You can even cut a mounting area in your trailer’s wall and implant it to save on valuable floor and shelving space.

KEEP YOUR RV nice and WARM with THESE propane Wave® Heaters!

Enclosed Trailer Heater 4: Suburban 2438ABK

The Suburban 2438ABK furnace is a full-fledged heating solution that’s designed for installation in RVs and enclosed trailers.

This furnace is made out of high-grade steel and other materials that give it outstanding durability. This unit is actually designed to bridge the gap between your interior and exterior wall with the heat louver facing inside and a specially-designed vent on the outside. With a specialized vent assembly (included), it’s never been easier to replace a burnt-out furnace in your enclosed trailer or add one yourself!

The whole unit operates electrically on a standard 12V circuit. Altogether, this compact heater is capable of 16,000 BTUs worth of output, which can heat just about 400 square feet, give or take. If you have this heater installed at either end of your trailer for optimum heating potential.

Do you want a one-time replacement heater that’ll keep your whole enclosed trailer warm at any point? This is the option for you!

DIY: Suburban RV Furnace install

Get Your Enclosed Trailer Heater Today!

These four options give you the best enclosed trailer heaters for just about any purpose.

The Mr. Heater MH9BXRV is ideal for campers who want a heater but don’t want to break the bank. This heater would also be good for outdoor camping trips, emergency blackout use, and other unexpected times of need.

Next, the Mr. Heater MH18B propane unit is also handy for those scenarios and more. Its powerful output makes it appropriate for larger areas, but it comes with all of the versatility and convenience of the first heater as well.

The Camco (see full specs) enclosed trailer heater kit is perfect for use in the walls of your trailer itself. That helps you save on floor space while having a dedicated heater unit that works just for your trailer or RV.

Finally, the Suburban Furnace (see full specs) heater is the high-powered, trailer-specific heating unit that’s designed to be embedded in the actual wall of your camper itself. It’s also the only unit on our list that has a dedicated venting system, ensuring your enclosed unit doesn’t build up with any form of exhaust or fumes.

So . . . are you ready to pick out the best enclosed trailer heater for your needs? Check out our list now! Good luck!

  • Founder of Mechanical Caveman, Beau is an unrepentant tool enthusiast and, sporting deadlift-callused hands and an incongruous beer belly, all-around macho guy. When he doesn’t know re tools, he consults with his handyman and car-repairman buds to give you well-reasoned and cutting-edge info.

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