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Hearthstone Quality Home Heating Products, Inc
8. Floating flames,
A. Potentially dangerous
lazy ill-defined,
incomplete combustion due
quiet flames, which
to incorrect air to fuel ratio
roll around,
(lack of combustion air or
sometimes
excessive fuel delivery I.e.
completely off of
excessive gas pressure,
the port,
overrating of appliance).
sometimes with
B. Incorrect air
overly, yellow tips.
intake/exhaust flow system.
Possible sooting.
Causes may be:
Usually
B1. Blocked burner.
accompanied by
B2. Blocked primary air
the odor of
B3. Blocked secondary air
aldehydes.
inlets
9. Burner
A. Excessive.
flashback. Air-gas
B. Burner input underrated.
mixture ignites
C. Valve leak if flashback
inside the burner
occurs with burner valve in
near the orifice,
off position.
usually creating a
D. Improper gas pipe size.
roaring noise like a
blowtorch. The
problem is an
imbalance of gas
flow velocity and
burning speed
pattern.
10. Delayed
A. Incorrect air-to-fuel ratio.
ignition (makes a
A1. Primary air incorrect.
sudden "whoosh"
A2. Burner ports plugged.
noise as the burner
B. Improper log placement.
lights). This is a
buildup of gas prior
to ignition. This is
more prevalent with
propane (LP) fuel.
A. Check the appliance input rate and reduce if necessary.
The air intake/exhaust flow system may be too restrictive or
blocked (the rate at which the exhaust leaves [draft]
determines the rate at which the combustion air is delivered).
Poor draft results in insufficient air delivery or a restricted
exhaust. Correct air intake/exhaust flow system.
B1. Clear ports.
B2. Clear obstructions.
B3. Clear obstructions.
C. If gas pressures are correct and the flames stay the same,
adjust the air shutter for a proper burn.
A. Adjust the air shutter for a proper burn.
B. Check input rate. Check input pressure using a manometer.
Confirm correct gas pressure at house meter or tank (call gas
company). Confirm burner orifice size.
C. Replace valve. If above corrections do not eliminate
flashback, replace burner.
D. Correct plumbing.
A1. Adjust the air shutter for a proper burn.
A2. Open ports to allow for proper travel of flames.
B. Reposition logs to eliminate interference with flame travel.
CHAMPLAIN Model 8304
28
07044-2
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