Avenger Infra-Red Tank Top Propane Heater - Single Burner, 15,000 BTU, Model# FBDTP15 15,000 Maximum BTU provides powerful Outdoor Heat with 3 Heat Temperature Settings (Low-Medium-High) Automatic Safety Control Valve shuts off gas flow if flame goes out No Electricity Required! Hooks up in minutes - Heats up in seconds! Operates on threaded, refillable Propane Cylinders (Not Included) For outdoor use only; Never use this appliance in an enclosed space