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Propex heaters are designed to be mounted on the vehicle floor, whether internally like the HS2000 and HS2211 or externally like the HS2211. The following information applies to the internally mounted HS2000 and HS2800 heaters only. The combustion inlet and outlet are stubbed with 2" pipes that allow secure connection to the intake and exhaust piping. Vehicles with thick, insulated floors can present a dilemma when trying to connect the combu …

The Propex heater is designed to be a floor mounted unit. We have spoken with several heater owners that wish to mount the heater in a cabinet or closet above the floor. While this might be convenient for the layout of the vehicle, it poses some potential problems with reliable heater operation. Here's why.When the heater is mounted on the floor as designed, the combustion piping almost immediately skews away from a vertical orientation. When …

As with any electrical connection that will be exposed to changing environments, it is important that you use dielectric grease when connecting the thermostat and power harnesses to your Propex circuit board. Dielectric grease is a silicone based product that will seal out moisture and prevent oxidation of the electrical terminals. This is NOT just a matter of smearing a glob of grease onto the connectors and calling it good. Dielectric grease …

One of the most commonly asked questions here at PropexUSA is: which model Propex do I need? When sizing your Propex there are as many considerations to take into account as there are individual installations. How big is the vehicle space you're trying to heat? How well insulated? What kind of a user are you: casual camper in warm climate or hardcore winter backcountry enthusiast? You must go through all aspects of your build when consideri …