Propex HS2000 Hot Air HeaterPropex HS2000 Hot Air Heater The HS2000 heaters are automatic thermostatically controlled blown air heating systems fuelled by propane or butane gas. Heatsource blown air systems are used in many applications throughout the world, these include Motorhomes, Caravans, Boats, Cranes, Horseboxes, Mobile Workshops etc. There is also a dual fuelled gas and 240v electric powered heater, the HS2000E available. Control The HS20000 is supplied as standard with