Dyna-Glo Delux's 100,000 BTU portable propane gas radiant heater is a light-weight, heavy-dut heating solution for areas up to 2,900 square feet. The variable output valve allows for just the right amount of heat needed. A flame safety system and full surround cage keeps things safe, while the 1-hand piezo ignition system keeps things simple. This is a safe and easy solution... perfect for harsh enviroments.