35
Fig.-4
f) It is very important to ensure that the joints of the pipes are well sealed to
avoid possible cracks through which air may enter.
..
Fig.-5
In order to verify the air-tightness of the chimney, you may:
-
Cover the outlet on the roof.
-
Introduce damp paper and straw at the bottom of the chimney and light it
up.
-
Watch for possible cracks through which smoke leaks out and seal them.
.
Fig.-6
