12
OPERATING THE FURNACE
HOW IT WORKS
The C Series furnace is a 409 stainless steel outdoor
furnace with a water jacket surrounding the firebox.
This reservoir of hot water is pumped through
insulated lines to buildings, pools, greenhouses or
whatever is being heated.
Fuel is loaded in the firebox and the aquastat senses
the water temperature, sending power to the solenoid
and draft fan when the water temperature gets too low.
When the furnace calls for heat, the solenoid opens
the draft flap in the blower box and the fan blows air
through the box and under the grates cooling them
even during a hot burn.
The majority of the air enters the firebox through the
grates and coal bed creating a very hot burn but
some also is forced up through the secondary air vent.
This helps burn off the gases, increasing efficiency
and reducing smoke.
After leaving the top of the firebox the exhaust is
forced to scrub the water jacket while traveling
through the curved baffle, then goes up through water
jacket, impacting the top bypass baffle, traveling
all the way to the front, then to the back and up the
chimney. This triple pass is a simple and very effective
heat exchanger, lowering exhaust temperatures and
also extinguishing sparks as they travel back and forth
over the long distances. The C800 model utilizes a
double instead of a triple pass.
When the aquastat senses the water is up to the
high temperature setting, it shuts off the fan and the
solenoid drops.
The furnaces is normally loaded every 12-24 hours and
ashes are removed when needed using the ash rake,
shaker grate and ash pan.
FILLING THE FURNACE WITH WATER
Your furnace has a vent pipe that protrudes through
the roof and contains the water level float indicator.
The float level can vary an inch or so depending on
the water temperature. Add water when it reaches
half way down the gauge. Allowing the furnace to run
low on water will cause the furnace to overheat and
cause damage to the furnace.
It can also potentially cause
a fire hazard. This is an open
system so the unit cannot be
pressurized. If you overheat and
boil the water in the furnace
immediately refill the tank, then
try to find the source of the
problem.
Hint:
Although water can be
filled using the vent pipe, it is
recommended that a fill valve
be installed inline in the building
you’re heating with a one way check valve to prevent
back flow. Filling the furnace with the inline valve
pushes all the air towards the furnace and out of
the vent. Because this furnace is an open system it is
normal that water will have to be added annually.
CAUTION:
Do not fire furnace until it is filled with
water. Allow furnace to run for 2 days and check
system water levels and fittings for leaks. Add water
treatment and take your initial water sample at this
time and be sure that it is sent in to Heatmaster
SS
offices for testing.
FIRING THE FURNACE
These furnaces have been specifically designed to
burn coal and as such, are not intended for burning
any other fuels such as wood, rubber, oil, plastic or
garbage. Burning these fuels in your furnace will result
in the warranty on the furnace being voided.
It is a violation of the 2015 EPA New Source
Performance Standards for Residential Heaters to
burn unapproved fuel in this outdoor furnace
WARNING - Risk of Fire
• Do on operate with fuel loading or ash removal
doors open.
• Do not store fuel or other combustible material
within marked installation clearances.
• Inspect and clean flues and chimney regularly.
CAUTION - Hot Surfaces
Keep children away. Do not touch during operation.
Содержание C-150
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