The Dyna-Glo TT15000M Single Burner Tank Top Heater generates infrared radiant heat that warms people and objects rather than the air. It is a portable heating solution that is perfect for indoor (with proper ventilation) and outdoor construction use. Rated at 9,000 15,000-BTUs, the TT15000M heats up to a 15 foot radius for a period of 28 to 48-hours depending on the BTU level selected. The TT15000M does not require electricity and it is mounted directly to a standard 20-pound liquid propane (LP) tank (not included). 20-pound tank run time is 48-hours at 9K-BTUs, 33-hours at 13K BTUs and 28-hours at 15K-BTUs. Assembly is easy, as a hand wheel is included to connect the P.O.L. tank connection to a standard 20-pound tank. This tank top heater has 3 variable BTU settings, steel heat reflectors and the burner head swivels to direct the heat and maximize comfort control. Safety features include a safety shut-off valve to stop gas flow if flame is extinguished and a mercury-free tip over switch that stops gas flow if tipped. Dyna-Glos double-mesh burner design provides safe, reliable heat, even in windy conditions. This product is CSA certified, meaning it has been thoroughly tested and certified and meets all applicable standards that cover important safety and quality requirements. The Dyna-Glo TT15000M Single Burner Tank Top Radiant Heater comes with a 1-year limited warranty that protects against defects in materials and workmanship. Color: Silver.