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3.16. Troubleshooting
Problem
The fire does not burn well
The fire does not last
The fire has too much flame
Expulsion of smoke into room
Smoke entering room during
burning
Insufficient Heat Output
Water condenses (after the
cooker has been lit more than 3
or 4 times)
Possible cause
Green or wet wood
Logs are too big
Bad quality wood
Direct draught rod
Not enough primary air
Not enough draft
Excess of primary air
Excessive draft
Bad quality wood
Cold flue
The room is depressed
Not enough draft
Downdraft
The room is in depression
Bad quality wood
Bad convection air combination
Green or wet wood
Not enough draft
Circulation pump start point not set
properly
This sign recommends a qualified
professional to perform this operation
Action
Use hard wood, with at least 2 years of cut and
stored in a ventilated and sheltered place.
To light the cooker use newspaper and kindling
wood or firelighters. Once established, used
smaller logs of a similar size.
Use hard wood that produces heat and embers
(chestnut, ash, maple, birch, elm, beech, oak,
etc.)
Check that the direct draught rod is open
Open the primary air control completely, or even
open the door a little bit.
X
Check the flue is not blocked. Remove any soot
from the flue air ways.
Check the flue outlet has not become damaged
Close all or part of the primary air inlet and the
draught check valve.
X
Install a draft regulator
Do not burn continuously, chips, carpentry
remnants (plywood, pallets, etc.)
Reheat the flue as quickly as possible using
newspaper and kindling to instant heat
In facilities equipped with VMC, half open a
window until the fire is well lit.
X
Check the status of the duct vent and isolation
duct.
Verify that this is not obstructed, make a
mechanical cleaning if necessary.
X
Install an anti-down draft cowl to the top of the
chimney rendering at the top of the chimney
X
In rooms equipped with VMC, it is necessary to
have an air intake from outside
Only use recommended fuel
Check the convection circuit (air input grids,
spreading grid) Verify that the adjoining rooms
are equipped with ventilation grids to enhance
hot air spreading.
Use hard wood, with at least 2 years of cut and
stored in a ventilated and sheltered place.
Check the condition of the flue and insulation.
Check that the piping is not blocked. Clean
mechanically if necessary
If not already fitted, fit a contact thermostat. Use
it to set the pump start-stop point better.
17
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