Connecting To A Brick Chimney; Fresh Air Supply - Morso 6870 Instructions For Installation And Use Manual

1.7 Connecting to a brick chimney

Build a flue pipe bushing into the wall, and insert the flue pipe. The pipe must not extend
into the chimney itself but only to the edge of the chimney aperture.
A soft bend of a transition from a vertical to a horizontal flue pipe, if required, is beneficial
to reduce loss of chimney draft.
Flue pipe sizing must be in accordance with national and local regulations. Morsø recom-
mends, however, that flue pipes be made of 2 mm sheet steel, because it will extend the life
of the flue pipe.
1.8 Connecting to a steel chimney
If your installation involves taking the chimney straight up and through the ceiling, you must com-
ply with National, Local Building Regulations or flue manufacturers instructions concerning clear-
ances to combustible materials such as walls, floor joists and ceilings. The joint between the stove
flue collar and the stovepipe must also be sealed using glass fibre rope. It is important that the
insulated flue system is properly supported both at ceiling level and at roof level.
THE STOVE MUST NOT BEAR THE WEIGHT OF THE CHIMNEY SYSTEM (See chimney man-
ufacturer's instructions). Excessive weight on the stove will inhibit expansion and could lead
to damage of the stove top. Damage caused to the stove in this way would not be covered by
the manufacturers guarantee.
If a chimney fire should occur as a result of incorrect operation of the stove or prolonged
use of wet fuel, close the vents completely and contact the fire brigade.
Note: The supplied wall-mounting fixture is not designed to carry the weight of a heavy chim-
ney as well.
Refer to the guidelines from the chimney manufacturer.
Be aware of the following:
Cleaning procedure: Discuss this with chimney sweep or qualified installer prior
to or during the stove installation.
Chimney draft: If the chimney draft is naturally poor it is better to install the flue from
the top of the stove so as to minimise any internal resistance of the flue gases.
Avoid having any more than 2 bends in the flue system and limit the length of the
offset between bends.

Fresh air supply

A wood-burning stove requires air for combustion. As a result, firing a wood-burn-
ing stove will help create a healthy climate in your house. If the house is very tightly
sealed, and particularly if there is a cooker hood or ventilation system in the house, it
may be necessary to install an air grate in the room in which the wood-burning stove
is installed. Otherwise there may not be enough draught in the chimney, which may
result in the stove not being able to burn properly, and smoke may come out of the
stove when the fire door is opened.
If it is necessary to install air grates, they must be positioned so that they cannot
be obstructed.
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