MR.HEATER PORTABLE BUDDYHEATER 4000 TO 9000 BTUFEATURES-4,000 or 9,000BTU per hour-For use with propane gas-Heats up to 200 sq. ft.-Single control start knob-Hi-Low heat settings-Swivel regulator-Fold down handle-Accidental tip-over safety shut-off-Includes Piezo igniter-Runs off a 1 lb. cylinder-Connects directly to a 20 lb. cylinder with optional hose & filter-14.25"L x 9"W x 15"H*THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY