Chimney Liner Calculator

For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4.

Chimney liner calculator.

To determine the area in a square or rectangular pipe just multiply the length by the depth. For the fireplace above that needs 108 of area this liner would be way too small. If you need to convert round liner dimensions to oval or rectangular try our liner shape calculator. A cross sectional area of chimney m 2 q volume of flue gases at chimney temperature m 3 s v velocity m s in general 1 kw boiler heat requires 1100 mm 2 of chimney area.

But chimney experts and draft measurements show that in a rectangular flue not all of the cross sectional area is equally effective in developing draft. In a few simple steps you ll be able to see your options for chimney liner size and type. Density of gases at the inlet of the chimney flue gases density at the inlet of the chimney is dependent upon the temperature. Choose the type of appliance you have measure the exhaust collar of the appliance.

If the vent is located outdoors and the temperature is very low condensation may continue. Chimney draft is required to draw the flue gases from the system and in order to prevent the backflow of gases the draft generated by chimney must be calculated accurately chimney draft depends on the following factors as mentioned below. Before it develops to drop size the liner will have been heated above the dew point and this condensate will reevaporate. 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.

A liner size of 9 x 12 would equal 108 and should just provide enough draft for the above fireplace. Stainless steel chimney liners while offering unrivaled customer service for the best buying experience. For single category 1 appliance. Average cost of chimney liner installation the average cost of a stainless steel chimney liner is around 1 980 when installed by a local chimney professional.

A q v 3 where. Just muliplying these dimensions together 6 75 x 6 75 45 56 sq in. For do it yourself homeowners expect to pay around 625 for a ready to install 6 x 25 foot flue liner kit and diy installation. Chimney vent capacity chart btu h and kw.

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. For example a liner that is 6 x 10 would be 6 x 10 60 of area. Use this tool to quickly calculate flue diameter or btu s for single or multiple category 1 appliance venting. Required chimney area can be calculated as.

Condensation will form on the cold inner liner of the vent. Chimney vent capacity chart btu h and kw pdf.