Milwaukee Tool's M18 Propane Heater is a cordless heater that is rated for 30,000-70,000 British thermal unit (BTU). Featuring a fast set-up time, the M18 has a variable temperature dial for output control and a forced air fan to create the best amount of heat in cold conditions. The heater is also compatible with both AC/DC power and is easily transportable with a height of 18.5" and a length of 21" and a width of 10.5". Also includes a 10' hose and regulator and a one-year limited warranty.