KAL-FIRE Heat Pure Series 105T Installation & User Manual - page 26
3. Mounting and installation
23
After reducing the flue, it is no longer possible to use the
Heat Pure as an open fire place.
Reduction is permitted immediately behind the damper/
connection collar, but not any deeper into the flue. At doubt,
always use the connection diameter indicated on the Heat
Pure.
•
Avoid horizontal runs; one extension may be placed with
adjustable elbows with maximum one change of direction
of 45°.
•
Kal-fire advises you to insulate the flue; this will reduce
the risk of the smoke condensing and will improve the
draught. Use the Kal-fire stainless steel insulated flue duct
for this purpose.
•
Kal-fire advises you not to use larger flue diameters than
the connection present on the Heat Pure. Using a larger
flue diameter can result in the following problems:
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-
-
Too fast and uncontrolled combustion;
Irregular flames;
Reduced heat output.
•
Use a draught hood if there is a flue with a (too) strong
draught. If the flue has too much upward draught, this
may result in a too quick, uncontrolled combustion,
irregular flames and rapid soiling of the glass door.
•
Use of different flue diameters to those indicated, is
entirely for the risk of the installer; when the door is
opened, smoke may escape back into the room or it may
be more difficult to ignite the Heat Pure.
•
Take factors in the surrounding environment into account
which could cause a strong draught in the flue. For
example, frequent high winds, which require a damper to
be mounted.
•
Pay attention that it is also possible to sweep the chimney
in the connection piece.