W415-0910 / A / 09.16.10
53
8.6 DRAFT
CONTROL
Draft is the force which moves air from the appliance up through the chimney. The amount of draft in your
chimney depends on the length of the chimney, local geography, nearby obstructions and other forces.
Adjusting the draft control regulates the temperature. The draft can be adjusted via the thermostat from a low
burn rate with the air control on the low setting to a fast burn rate with the air control on the high setting.
Inadequate draft may cause back-puf
fi
ng into the room and may cause plugging of the chimney. Too much
draft may cause an excessive temperature in the appliance, glowing red appliance parts or an uncontrollable
burn which can all lead to a chimney
fi
re or a permanent damage to the appliance.
ALWAYS OPERATE THIS APPLIANCE WITH THE FIRE BOX DOOR CLOSED AND LATCHED EXCEPT
DURING START-UP AND RE-FUELING.
Roll up some newspaper, light it and place it near the appliance
fl
ue until the chimney begins to draw. When a
fi
re is burning, open the door slowly to avoid drawing smoke into the room.
A properly installed Napoleon appliance should not smoke.
If yours does, check the following: Has the chimney had time to
get hot? Are the air intake hoods blocked closed? Is the smoke
passage blocked anywhere in the appliance or chimney? Is the
smoke
fl
ow impeded by too long a horizontal pipe or too many
bends? Is it a weak draft perhaps caused by a leaky chimney,
a cold outside chimney, too short a chimney, or a chimney too
close to trees or a higher roof?
•
Closing the doors too quickly after refuelling will reduce the
fi
rebox temperature and may result in
an unsatisfactory burn.
•
As soon as the doors are closed, you may (if glass door is installed) observe a change in the
fl
ame pattern.
The
fl
ames will get smaller and lazier because less oxygen is getting into the combustion chamber. The
fl
ames, however, are more ef
fi
cient. The
fl
ames will remain lazy but become larger again as soon as the
fi
rebricks have been heated thoroughly and the chimney becomes heated and provides a good draft.
•
With the doors opened the
fi
re is wastefully drawing heated room air up the chimney, certainly not
desirable. Always operate with the doors fully closed once the medium sized logs have caught
fi
re.
•
You can now add larger pieces of wood and operate the appliance normally. Once the appliance is
entirely hot, it will burn very ef
fi
ciently with little smoke from the chimney. There will be a bed of hot
coals in the
fi
rebox so you can safely
fi
ll the
fi
rebox with wood to the bottom of the secondary air tubes.
Can't get the appliance operating?
Use more kindling and paper.
Assuming the chimney and vent are sized correctly and there is suf
fi
cient combustion air, the lack of suf
fi
ciently
dry
quantities of
small
kindling is the problem.
Thumb size
is a good gauge for small kindling diameter.
Can't get heat out of the appliance?
One of two things may have happened. The appliance door may have
been closed prematurely and the appliance itself has not reached optimum temperature.
Re-open the door and/or draft control to re-establish a brisk
fi
re. The other problem may have been wet wood.
The typical symptom is sizzling wood and moisture being driven from the wood.
NOTE
Differences in the chimney height
and draft may lower overall burn
times.
Summary of Contents for HYBRID 150
Page 6: ...W415 0910 A 09 16 10 6 AIR FLOW CIRCULATION AND HEAT TRANSFER COMBUSTION AIR FLOW...
Page 64: ...W415 0910 A 09 16 10 64 13 0 SERVICE HISTORY...
Page 65: ...W415 0910 A 09 16 10 65 14 0 NOTES...
Page 66: ...W415 0910 A 09 16 10 66 14 0 NOTES...
Page 72: ...W415 0910 A 09 16 10 6 CIRCULATION D AIR ET CHANGE DE CHALEUR CIRCULATION DE L AIR COMBURANT...
Page 131: ...W415 0910 A 09 16 10 65 14 0 NOTES...
Page 132: ...W415 0910 A 09 16 10 66 14 0 NOTES...