METALBESTOS: Metalbestos is your best choice for any type of roof line when you need to add a chimney exhaust system. Fire Glow is a distributor for Metalbestos. Class A chimney for wood stove and oil furnace applications. Stainless steel hard pack chimney. All supplies needed to build various chimney scenarios: Anchor plates available to change masonry chimney to metal. Chimney will need to extend 2 feet higher than 10 foot radius. Chimney needs 2" air gap to combustibles Flue sizes: 6", 7", 8", 10", and 12" Click here for more information. Type B gas vent chimney for natural vent gas appliances. Double wall strong, durable galvanized steel. All supplies needed to build various chimney scenarios. Rules apply for height of chimney--roof pitch 7/12 or less is 1 foot out of roof. Roof pitch greater than 7/12 you will need to see manual's chart. Chimney needs 1" air gap to combustibles Flue sizes: 3", 4", 5", 6", 8" Click here for more information. Direct vent chimney for gas and pellet stoves. Allows fresh air into combustion chamber and vents exhaust out. Double wall; inner stainless steel and outer strong heavy duty galvaized steel. Pipe is gasketed--no sealing of vent necessary. For venting out the back or thru the roof--rules apply. Chimney contruction needs to follow appliance instructions. Flue sizes: 4" and 5" Click here for more information. Chimney for pellet stoves. Double wall chimney--inner stainless steel and outer galvanized steel. Gasketed pipe. All supplies needed to build various chimney scenarios. Rules apply for venting--see appliance instructions. Flue sizes: 3" and 4" Click here for more information. Double wall pipe to connect wood stoves to chimneys. Used when clearance to combustibles is an issue. 6" clearance to combustibles. 6" flue size. Click here for more information.