The Ozark Trail Portable Propane Heater provides great heat that you can take with you almost anywhere. With its durable styling and no need for electricity or batteries the Ozark Trail Portable Propane Heater is a great choice for heat in outdoor and emergency indoor situations. The Ozark Trail Portable Propane Heater has 2 heat settings that provide up to 10 000 BTU s per hour on High and 5 500 BTU s per hour on Low and also has a Tip Over Safety Switch and Oxygen Depletion Sensor for Safety. The Ozark Trail Portable Propane Heater utilizes one 1 lb propane cylinder - making it completely portable and able to be used inside in an emergency. When outdoors you have the extra option of hooking up the Ozark Trail Portable Propane Heater to a 20 lb propane tank with the optional extension hose (Model HAKITDG) for extended runtime up to 45 Hours on High and 79 Hours on Low . The convenient carrying handle will allow you to easily move the heater to any location making it an outstanding solution for portable hea