PS Magazine - TB 43-PS-624
PS, The Preventative Maintenance Monthly
ISSUE 624
NOVEMBER 2004
1.
Set the
fuel selector control
to the
proper setting for outside temperature
and the type of fuel being used. This
adjusts the valve to match the viscosity
of the fuel so that the correct amount
flows to the burner.
Never turn the fuel selector control to
a temperature setting that’s lower than
the outside temperature. You’ll cause
more fuel to flow to the heater than it
can burn. The result is overfiring.
2.
Adjust the
fuel flow adjustment
knob
to further regulate the amount of
fuel to the burner. Turn the knob coun-
terclockwise to a lower setting. That will
reduce the flow until the flame is light
yellow or white (the desired color) and
the heater stops smoking and pulsing.
PS 624
NOV 04
48
Family of
Space
Heaters…
I
t’s one of those freezing winter nights when the sky’s swept crystal clear and the
air feels like needles pricking your skin. But you don’t mind. You’re snug inside your
tent with an arctic space heater or an H-45 space heater up and running on liquid fuel.
You’ve settled into a
cozy sleeping bag and
are drifting off to sleep
when
suddenly
the
heater starts running
rough. Smoke starts
coming out of the heater
and the top of the stack.
You’ve just come face to face with a problem known as
overfiring.
That’s when
the heater gets more fuel than it can burn. At the same time, it may not be getting
enough air. Not only will it throw off black smoke and run rough (also known as
pulsing), but the top and sides may glow red. The flame will have an orange color as
seen through the sight glass on the heater lid. Eventually, overfiring leads to metal
flaking of heaters and stacks, destroying them before their time.
now that
you know
what
went
wrong,
here’s how
to prevent
it…
Adjust Fuel Flow
Set
fuel
selector
control
to proper
setting
Turn fuel flow
adjustment knob
counterclockwise
to reduce fuel
flow
{cough
cough}
our heater’s filling
the tent with
smoke!
what’s wrong?
too much
fuel,
not
enough
air!
Put a
stop
to
overfiring by
making these
adjustments to
the fuel flow
control valve…
624.48-49(C!)
9/24/04
11:12 AM
Page 1
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