Key Features: HEAT OUTPUT - 30KW/102,000Btu/hr ideal for heating marquees, events, halls, workshops, warehouses, construction sites and more. 100% HOT CLEAN AIR - Heater blows out 100% clean, fume-free warm air, so it is safe for heating indoor and poorly ventilated spaces. FLUE EXHAUST - Combustion by-products are exhausted out of the top of the heater. Sections of ducting are available separately, Model No. ABI1000AK1. THERMOSTAT - Allows you to set a required ambient temperature within the space as well as measuring actual ambient temperature. The thermostat will switch the heater on and off as required in order to maintain the set temperature. This saves fuel and adds extra convenience. ROBUST DESIGN - Built to perform in challenging areas. HIGH QUALITY FEATURES - Includes a stainless steel combustion chamber with fan cooling, built-in flame sensor, Danfoss pump, electronic flame control and electronic control.