The Burley Esteem 4221 combines a traditional gas fire appearance with modern technology. This flueless 2.5kW gas stove fire has an authentic coal effect feature and arrives in black cast aluminium with a ceramic glass door.Flueless gas fires give you the attraction of a living flame fire, but without the need for a chimney. They burn extremely cleanly, producing virtually no carbon monoxide. The waste gases are then 'scrubbed clean', by passing them through a catalytic converter (similar to that used on a car) reducing levels further still. They are 100% efficient and therefore very environmentally friendly.Please note: All gas appliances must be installed by a CORGI qualified engineer and serviced annually. Failure to do so will invalidate all guarantees.