Whether it's in the stuff you posted Oilman or in my Efel instructions it says about insulating flues to stop condensation forming in the chimney's.
As regards the height of chimney's having a better draught--you are vastly incorrect as being an ex-gasman involved in heating applience design in industrial and commercial situations i know that if the exhaust gases cool they will not vacate the flue and can be very dangerous----but i doubt this would happen with a wood stove.
The actual reason chimney's were built so high Oilman is so they didnt choke the nearby inhabitants to death with noxious fumes---industrial chimneys were built high enough to catch the high winds which would disperse the smoke further a field
As regards the height of chimney's having a better draught--you are vastly incorrect as being an ex-gasman involved in heating applience design in industrial and commercial situations i know that if the exhaust gases cool they will not vacate the flue and can be very dangerous----but i doubt this would happen with a wood stove.
The actual reason chimney's were built so high Oilman is so they didnt choke the nearby inhabitants to death with noxious fumes---industrial chimneys were built high enough to catch the high winds which would disperse the smoke further a field