Propane gas(LPG) direct fired space heaters : offering very small to medium-sized capacity – easy to handle – safe to use – adjustable heat output – on/off control (M-Type) or set to be connected to a thermostat(A-type). For use in well-ventilated areas. These burners are direct fired, with open flame,but without important fume discharge.
Type M: hand operated.(on/off)
Type A: connected to a thermostat for automatic control of the desired temperature.