The TT-30CSA, Dura Heat dual tank top heaters with match light ignition and double burner adds twice the heat for those tricky outdoor spaces, patios, tailgating, ice-fishing, and hunting. The versatile tank top heater is a good low cost solution for extra heat in many outdoor situations. Quiet infrared heat, no electricity, and tough construction. - provides up to 30,000 BTU of quite infra-red heat - uses 20 lb. propane tank (not included) - burner heads swivel independently - heavy duty steel construction