4,000 OR 9,000 BTU PER HOUR; RUNS ON 1 LB PROPANE BOTTLE; HEATS UP TO 225 SQ FT; HI - LOW HEAT SETTING; ACCIDENTAL TIP-OVER SAFETY SHUT-OFF; INCLUDES PIEZO LIGHTER; RUNS OFF A 1LB PROPANE CYLINDER; RUN TIME (HRS @ MAX BTU) 3 HOURS; RUN TIME (HRS @ MIN BTU) 6 HOURS; MAXIMUM ELEVATION (FT) 7000 FT; WEIGHT 10.6 LBS; MODEL MH9BX