Air Cooled Chimney

As the name suggests this type of chimney consists of air flowing in between multiple layers of hard metal which is used in the construction of these chimneys.

Air cooled chimney.

Some of our fireplaces are compatible with double wall or triple wall air cooled chimney systems. Dura chimney ii durachimney ii is tested and listed for continuous operation at 1000 f flue gas temperatures one hour at 1400 f and ten minutes at 1700 f in accordance with the ul 103 test standard durachimney ii is designed to stay cool on the outside to provide a hot draft on the inside and to provide a fire. Air cooled temp guard chimney model atg double wall factory built chimney systems for use with gas liquid and solid fuel fired residential type and building heating appliances in accordance with the standards for chimneys fireplaces vents and solid fuel burning appliances nfpa 211 boca national mechanical code standard mechanical code and the uniform mechanical code. A small scale model of thermal chimney with rectangular cross section of constant area was designed and one row electrical heaters were installed to mimic the shell and tube heat exchanger.

When you look down the pipes you will see all the layers of the pipe and there will be an air gap between the pipe. Thermal chimney driven enhanced air cooled condensers have increasingly found extensive applications in buildings thermal and geothermal power plants. The air cooled weathershield chimney cap model assures a secure wind resistant fit without interfering with the convection cooling features of air cooled chimneys. This universal premier after market chimney cap protects air cooled chimneys from adverse weather and keeps out debris animals.

The air also absorbs a large amount of heat that rises through the chimney. My general opinion would then be yes class a and not described always as solid pack would be better. If your rain cap is still connected and you wish to replace the cap you will likely have to remove the rain cap to identify if it is an air cooled chimney cap. The purpose of the air is to circulate between the metal and dissipate all the heat.

While these types of chimneys are less costly to purchase and install than insulated chimneys we do not recommend the use of air cooled chimneys in our cold weather environment here in new york state. This kind of chimney features either two or three metal walls with open space between each a design that promotes the cooling of the flue using air. Air cooled chimney pipe will be a double wall or triple wall pipe. So perhaps the real question is whether a class a chimney is better than most specific 100 air cooled chimneys which are usually only listed for the manufacturers fireplaces or another that has been tested with it.