hergom Deva II 100 Instruction Book page 8

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.
f) The chimney should be one metre higher than the highest part of the house.
If you need to increase the draw, extend the length of the chimney.
g) Chimney covers must not affect chimney draw.
Fig.-6
Fig.-7
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