House chimney has brickwork of pressure-resistant lime sand brick around a stainless steel inner flue extending above roof tiles

摘要

A building has a heating system with a chimney flue surrounded by brickwork which is esp. of pressure-resistant lime sand brick and extends to the tile line. The stainless steel chimney flue extends beyond the brickwork and above the roof slate line, from which it is separated by an apron seal.