Safely and conveniently heat your hunting shack, large tent, ice shelter, or any space up to 225 sq. ft. with Mr. Heater's Portable Buddy Heater. It easily connects to 1-lb. propane cylinders and is a compact solution for the chilliest nights.• Portable and easy to use, heater connects to a 1-lb. propane cylinder (not included)• 4, 000 or 9, 000 BTU per hour pumps out heat for up to 225 sq. ft.• One-button control: just rotate knob to pilot and push• Tip-over safety shut-off, automatic low oxygen shut-off systems• Fold-down handle increases portability• Can connect to 20-lb. propane cylinders with optional hose and filter• CSA certified for indoor and outdoor use• Not for use above 7, 000 ft.; always provide adequate ventilation Weight: 10.60 lbs. Dimensions: 14.50"H x 14.40"W x 9.10"DModel: MH9BX 4, 000 or 9, 000 BTU/hour; heats up to 225 sq. ft. Safe for indoors with tip switch, oxygen sensor | Mr. Heater Portable Buddy Heater