Dimensions: Body size: 84W x 72.5H x 15D cm Weight: approx. 15kg Burning time per refill: 3-5 h (depending on the size of the opening); flame height adjustable. Heat output guidance: 1 - 3 kW (This is more than most electric fires and comparable to many flueless gas fires or regular gas fires, as with gas, there is 60% heat loss through the chimney. Bio Fires are 100% efficient - all heat produced stays in the room. Fuel Suitable: Bio Ethanol Fuel (maximum ethanol content: 96%). NOTE: Gel fuel is NOT suitable.