37
j) Avoid any excessive length in the connection of the cooker with the chimney
and any negative inclination
Less than
1 metre
Greater than
1 metre.
Positive angle
Negative angle
CORRECT
INCORRECT
Fig.-10
k) Clean the chimney at least once a year.
The most efficient way of cleaning chimney conduits is using appropriate chimney
brushes. Chemical products are available to help postpone classical chimney
sweeping operations.
Chimney brushes must adapt as closely as possible to the chimney diameter.
The joints of the pipes that form the chimney, in the case of metal pipes, must be
sealed with refractory putty.
l) External metal chimneys must be built with special double insulated pipes for
solid fuels.
IV.- OPTIONAL ACCESSORIES
Hergóm
offers the following accessories for this cooker:
• Steel vitreous enamel pipes
.
