Chimney Draw Test. It is not clear in the instructions how to do this. Zero or a positive number means the gasses are not going up the chimney.
The test involves sealing off the fireplace I usually use boarding with a sealable access point to place the smoke pellets. During the evening test while ambient air is cooling down the chimney is still warm from the daytime high temperature. The warm chimney heats the air inside it making it less dense than the air around it and it flows upward pulling air out of the basement.
The test involves sealing off the fireplace I usually use boarding with a sealable access point to place the smoke pellets.
Induced draft heating systems shall be checked for spillage at the base of the chimney liner or flue. A Smoke Pressure Test is not a Draw Test. It is not clear in the instructions how to do this. If this is the only time you have chimney draft problems see problem No.
