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Camper Heater Showdown: Diesel vs. Propane (Forced Air)

Writer's picture: Brandon TylerBrandon Tyler

Each heating system has its place, but which is right for you? We’re seeing a noticeable market shift towards diesel heaters, but choosing the best option for your camper can feel overwhelming. If you’re asking yourself which system you should go with, this article will help you make an informed decision.


Overview

When it comes to heating your camper, two leading options stand out: Diesel Heaters and Propane (Forced Air) Heaters. Both systems provide reliable warmth, but each comes with its own advantages and drawbacks. Your choice will depend on your camping style, climate, and power needs. Let’s break them down.


Planar Diesel Heater - Optional accesory for our campers

Diesel Heaters

A diesel heater is a compact, efficient heating system commonly used in campers, RVs, and off-grid vehicles. It works by burning diesel fuel to generate heat, which is then distributed into the living space through forced air.

  • Typically runs off the vehicle's main diesel tank or an auxiliary diesel tank.

  • Popular among overlanders and off-grid campers due to their efficiency and reliability in extreme conditions.


Small Dometic Furnace - A component of the optional Mounted Propane Furnace

Propane (Forced Air) Heaters

Propane forced air systems are one of the most common heating solutions in campers, RVs, and trailers. These systems use propane fuel to generate heat, which is then distributed throughout the living space using a fan and ducting.

  • Commonly found in traditional RVs and truck campers.

  • Requires propane tanks and proper ventilation to ensure safe operation.


Pros vs. Cons


Diesel Heaters

Pros:

  • Extremely fuel-efficient, especially for long trips.

  • Diesel is at every gas station.

  • Uses the same fuel as the vehicle (if diesel-powered).

  • Performs reliably in cold weather, even in sub-zero temperatures.

  • Compact design with versatile installation options.

Cons:

  • Higher upfront cost for installation and equipment.

  • Can be noisier, particularly the ticking of the fuel pump.

  • Requires clean diesel and regular maintenance to prevent clogs.

  • May produce a slight odor during startup.


Propane (Forced Air) Heaters

Pros:

  • Clean-burning fuel with minimal odor.

  • Shares fuel with propane kitchen stoves.

  • Propane refills are easy to find at campgrounds, gas stations, and outdoor stores.

  • Quiet operation compared to diesel heaters.

Cons:

  • Less efficient in extremely cold temperatures; propane can struggle to vaporize in freezing conditions.

  • Larger propane tanks take up valuable storage space.

  • Requires more frequent refueling on longer trips.

  • Dependent on external power to operate blowers and ignition systems.


Which Should You Choose?

Ultimately, the right heater depends on your specific needs:

  • Choose Diesel if you camp in extremely cold weather, travel long distances, or value fuel efficiency and reliability.

  • Choose Propane if you’re looking to reduce fuel redundancies, quiet solution and primarily camp in milder climates with easy access to propane refills.


Final Thoughts

Both diesel and propane heaters have their place in the camper and RV world. Diesel heaters excel in performance, efficiency, and cold-weather reliability, making them ideal for off-grid adventurers. On the other hand, propane heaters use the same fuel as your stoves and are great for casual campers.

Take time to evaluate your travel style, destinations, and budget to determine which system is right for you. Whether you’re venturing into the freezing wilderness or enjoying a quiet weekend getaway, staying warm should always be a top priority!

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