The Vevor propane tank top heater delivers up to 18,000 BTU of radiant heat for outdoor spaces up to 450 sq ft. It is designed for use with 1 lb propane tanks and 5-40 lb tanks using the included 8.8' QCC1/CGA600 adapter hose. The heater offers three adjustable heat settings and can be used upright for heating or laid down for cooking. Built-in safety features include a security switch and valve that stop gas flow if the unit tips over. Its durable metal construction is suited for camping, hunting, ice fishing, and other outdoor activities.