Best Practices For Adding Ducting Junctions And Outlet Vents To Your Propex Installation

Best Practices For Adding Ducting Junctions And Outlet Vents To Your Propex Installation

Posted by Propex North America on Apr 17th 2025

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If you have a larger cabin space, consider using ducting junctions to add a second or third outlet vent to better distribute the heat.   Propex North America carries Y-Junctions, T-Junctions, and Straight Junctions for the HS2000 and HS2211 and a Y-Junction for the HS2800.

 

 

  • To add a junction to your HS2800 installation, you'll need to use 76mm reducer/adapters.  These reducer/adapters are used to adapt the ducting to the Y-junction and outlet vents.  You'll need as many adapters as the number of connections you install.  For example: if you use a Y-junction to add a second outlet vent, you will use one reducer at each leg of the Y-junction and one at each vent for a total of five reducer/adapters.  (Note - the heater outlet does not need a reducer/adapter to attach the ducting.)

 

  • If using a T-junction, please note that the flow of hot air should never end in a dead end. In other words, you should install the junction with the top of the tee in line with the heater outlet.

 

  • Ideally the first vent outlet in your ducting system would be no further from the heater than 1.5 meters.  Anything longer has the potential to cause the heater to overheat.

 

  • If you have a large space or your space has several distinct areas (kitchen, living area, sleeping quarters), please consider the Propex Heat Air GTR-10 or Heat Air GTR-15.  These heaters provide up to 9000 and 15,0000 BTU’s respectively and can be mounted either internally or externally to the vehicle or structure.