Chimney Liner Capacity

Fresh air kits include.

Chimney liner capacity.

The capacity of a chimney depends on the potential chimney draft the pressure difference created by the inside and outside air temperature difference and chimney height and the chimney area. The venting capacity of a rectangular or square masonry flue if translated directly into actual or measured square inches of cross section is less than a round chimney flue of the same square inches of venting capacity. Installing a stainless steel chimney liner down your chimney is the best and most economical way to revive a deteriorated chimney flue. If properly installed and maintained metal chimney liners are extremely safe and durable stainless steel is suitable for wood burning gas or oil appliances while the aluminum is an inexpensive alternative for certain medium efficiency gas applications only.

Doing the work as a d i y homeowner can save hundreds and possibly thousands of dollars. Guide provided by rockford chimney. Metal chimney liners usually of stainless steel or aluminum are primarily used to upgrade and repair existing chimneys. This is no job to cut corners though.

The rule of thumb for sizing a chimney liner is that you never want it to be smaller than the appliance exhaust hole and you don t want the liner to be three times the area of the exhaust hole of the appliance. The pressure difference in the chimney pulls air and fuel gas from the boiler or fireplace through the chimney and out of the building. 4 x 10 m flex aluminum liner 10 insulation sleeve exterior intake and 2 hose clamps. The ideal flue size is typically determined by the exhaust outlet of the stove or appliance.

Use this tool to quickly calculate flue diameter or btu s for single or multiple category 1 appliance venting. For single category 1 appliance. The proper amount of fresh combustion air is brought in with the fresh air kit directly to wood or pellet stoves ensuring optimal performance.