Chimney Liner Size Calculator

At the chimney crown on your roof you need to measure the inside diameter of your existing flue opening.

Chimney liner size calculator.

Use this tool to quickly calculate flue diameter or btu s for single or multiple category 1 appliance venting. Choose the type of appliance you have measure the exhaust collar of the appliance. For single category 1 appliance. In a few simple steps you ll be able to see your options for chimney liner size and type.

Rigid 304l chimney liner rigid 316l chimney liner single wall black stove pipe double wall black stove pipe metalbestos class a chimney pipe rock vent class a chimney pipe 316l inner 430 outer rock vent class a chimney pipe 304l inner galvalume outer rock vent class a. Rockford chimney supply s chimney liner size calculator guide is a great way for anyone to choose the correct size liner and also the correct type of stainless steel. It s always a good idea to add an extra foot or two just in case. Then the fireplace opening should be divided by 8 instead of 10.

To determine the area in a square or rectangular pipe just multiply the length by the depth. Stainless steel chimney liners while offering unrivaled customer service for the best buying experience. For your fireplace you need to calculate the maximum size flue liner you can install. The exception to this rule is when the liner is twice as long as the depth like a 6 x 12 liner.

Next inside your home measure the height and width of your fireplace opening. Chimney liner and flue pipe length calculator select pipe or liner type. For example a liner that is 6 x 10 would be 6 x 10 60 of area.