Propex Double Outlet Kits for HS2000 & HS2000e Blown Air HeatersPropex Double Outlet Kits for HS2000 & HS2000e Blown Air Heaters Propex Heatsource blown air systems are used in many applications throughout the world, these include Motorhomes, Caravans, Boats, Cranes, Horseboxes, Mobile Workshops etc. This Kit allows you to split the heat output to two different outlets, by adding it to the standard outlet piping. Included in the kit is a length of corrugated piping, a Y joint, and an outlet.