The Most Popular Portable Propane Heater in North America. This patented radiant 6，000-12，000 BTU Liquid Propane heater connects directly to one 1 lb. cylinder and is the perfect solution for heating enclosed spaces like cabins up to 300 sq. ft. A swivel regulator gives you the ability to adapt usage from disposable cylinders to a remote gas supply with the purchase of a single hose and filter. To light the unit， simply push and rotate the knob. The built in silent electric ignition will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off， you can be sure that you will enjoy years of comfortable indoor safe heat.6，000 or 12，000 BTU per hourFor use with propane gasHeats up to 300 sq. ft.Single control start knobHi-Low heat settingsSilent electronic ignitionSwivel regulatorsAutomatic low oxygen shut-off system (ODS)Accidental tip-over safety shut-offConnects to one 1 lb. cylinderConnects to a 20 lb. cylinder with optional hoseTHE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED， MAY CAUSE SERIOUS INJURY， AND WILL VOID THE WARRANTY.