The Dyna-Glo Pro 135,000 BTU Portable Forced-Air Kerosene Heater is perfect for heating large indoor and outdoor environments that have proper ventilation. The heater features continuous-spark ignition, as well as an automatic shutoff for safe use. The convenient built-in fuel-gauge and thermostat help you monitor the fuel supply and temperature. All Dyna-Glo Pro Kerosene Forced Air Heaters are CSA certified for multi-fuel use with these fuel types: K1 Kerosene, Diesel #1, Diesel #2, Fuel Oil #1, Fuel Oil #2, Jet A and JP-8. However, K1 Kerosene is the manufacturers recommended fuel for optimal, cleaner burns and long lasting product life.