Chimney Liner Size Calculator

In a few simple steps you ll be able to see your options for chimney liner size and type.

Chimney liner size calculator.

Chimney liner and flue pipe length calculator select pipe or liner type. Choose the type of appliance you have measure the exhaust collar of the appliance. For your fireplace you need to calculate the maximum size flue liner you can install. Stainless steel chimney liners while offering unrivaled customer service for the best buying experience.

For single category 1 appliance. For example a liner that is 6 x 10 would be 6 x 10 60 of area. To determine the area in a square or rectangular pipe just multiply the length by the depth. 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.

Chimney liner size calculator and selection guide this handy guide is provided to assist you in choosing the right size and type of chimney liner for your home. At the chimney crown on your roof you need to measure the inside diameter of your existing flue opening. It s always a good idea to add an extra foot or two just in case. Next inside your home measure the height and width of your fireplace opening.

Then the fireplace opening should be divided by 8 instead of 10. Use this tool to quickly calculate flue diameter or btu s for single or multiple category 1 appliance venting. If you need to convert round liner dimensions to oval or rectangular try our liner shape calculator.