29
Combustion and Ventilation Air Supply
The furnace and venting system require a generous amount of clean air to operate
safely. Lack of adequate combustion and ventilation air can result in erratic operation of
the burner, noisy and poor combustion, sooting of the combustion chamber, and fuel
odors in the air.
Never block off or restrict the supply of air to the furnace.
Inspection Areas
Burner Compartment:
On the counterflow / horizontal furnace models,
the burner
compartment can be inspected by removing the front door of the furnace. Look for signs
of excessive heat, such as discoloration of components, damage to material from rust or
corrosion, soot or carbon build-up, and evidence of fuel oil leakage.
Exterior of Furnace:
The exterior of the furnace should be inspected for signs of
excessive heat such as discoloration of materials and damage from rust or corrosion.
Confirm the base or frame supporting the furnace in level and in sound condition.
Venting System:
The furnace flue pipe, vent connector, barometric damper, and
chimney should be inspected for:
Signs of excessive rust, corrosion pitting, and holes.
Signs of condensation or moisture leakage.
Evidence of structural damage, and loose or disconnected piping joints.
Presence animal nests.
Free movement of the vane of the barometric damper without binding or
interference.
If any problems are evident, call a qualified heating contractor for assistance.
NOTICE: A qualified heating contractor MUST service the oil burner and inspect
the heat exchanger in this furnace at least once a year.
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