Similar in appearance to the Firefox 5 the Firefox 8 is a wider stove letting you use longer logs. The Firefox 8 can give out up to 8.5kW of heat and is suited to the medium sized room. This is a cast iron stove with a relatively clean design. The Firefox 8 has primary and secondary air controls – you use the primary control when lighting the stove and when burning coal and the secondary when burning wood. The secondary air supply also provides airwash to help keep the window clear of deposits.