Chimney - Class 1 The conventional brick chimney - clearly defined by a chimney stack and pot on the roof of a property.
	Pre-Cast - Class 2 Hollow concrete flue blocks create a flue up through the property usually terminating with a ridge vent on the roof.
	Pre-Fabricated - Class 2 A metal flue box situated behind the fire connects to a series of metal flue pipes run up through the house terminating with a pipe and terminal through the roof.
	Power Flue Where no chimney or flue is available. A quiet but powerful fan situated on an outside wall expels the flue gases from the fire. Mains electricity required. For specific regulations relating to power flue fires, please consult your installer

	Balanced Flue Where no chimney or flue is available. The fire vents directly outside through a horizontal twin wall pipe. These fires are glass fronted. No mains electricity is required. For specific regulations relating to balanced flue fires, please consult your installer
­	Flueless Where no chimney or is available and a balanced or power flued appliance is not suitable, it may be possible to install a Flueless fire. These fires often require a minimum room size and secondary ventilation. Consult your installer before purchase