SIP Fireball RP15 Radiant Propane Heater SIP Radiant propane heater is compact and portable and perfect for heating objects and surfaces directly. With no mains required, the heater can be placed in any well ventilated area for quick and effective heating. The Fireball RP15 heater offers a maximum infrared heating output of 15,000 BTU per hour. An adjustable gas flow control allows you to keep in control of the heat output. The head on this gas heater can be adjusted to direct the heat. Ideal for use in small workshops and garages, the heater is not ideal for warming up areas but more for direct heating of objects. For safety the heater features a tilt switch which will cut out the flame is the heater is tipped over.