12
Outside Combustion air may be necessary for an indoor installation if:
• The solid-fuel-fired appliance does not draw steadily, smells, experiences smoke rollout, burns poorly, or back-drafts whether
or not there is combustion present. Opening a window slightly on a calm day alleviates these symptoms.
• The house is equipped with a well-sealed vapor barrier and tight fitting windows, and/or has any powered devices, which
exhaust house air.
• There is excessive condensation on windows in the winter.
• A ventilation system is installed in the house.
CAUTION: HOT SURFACES. KEEP CHILDREN AWAY. DO NOT TOUCH DURING OPERATION.
BURN WOOD ONLY!
General
Operation:
First Fire:
Set the wall thermostat to 90°F. Make sure switch on the wall thermostat is in the HEAT position.
Place several crumpled newspapers on the grate with some dry kindling layered on top of the papers, then ignite the newspaper.
When the kindling is burning, add several small pieces of wood, allow wood to fully ignite. After about 20 minutes the fire should
be established, allowing you to add more wood – do not overload which would smother the fire. Add more wood slowly, so the
flames have time to engulf the fresh wood. Once the fire is burning and there is a glowing ember bed, set the wall thermostat to
the desired home temperature.
Do not over-fire the furnace. Over-firing by overloading/over fueling the furnace causes the metal to superheat and expand, then cool
rapidly, which causes cracking, therefore voiding the warranty. Over-firing or abuse can easily be determined upon inspection.
It will take about 40 minutes to establish a bed of hot embers. Once you have achieved the hot ember bed, add larger pieces of
firewood. Finally adjust the wall thermostat to a comfortable setting.
NOTE: Your new Shelter Furnace is capable of producing a very high BTU output. Do not fuel your furnace to capacity upon initial firing.
It’s recommended that you become thoroughly familiar with your Shelter Furnace before operating at full capacity.
The new steel and metal components of the furnace have a protective coating or paint on the surface which could produce an odor during
the break in period. Adequate ventilation within the home and furnace room or area is recommended during the initial firing and break
in period to accommodate this possibility. Your new Shelter Furnace is classified as having airtight construction. This type of design
should enable you to experience an average burn time between 8 and 12 hours per full load of fuel (dry, seasoned hardwood). However,
abnormally cold weather may reduce the burn time somewhat, but if your burn cycle is significantly less, for instance, 2 to 4 hours, you
are over-firing your furnace. This type of occurrence is usually symptomatic of heat demands in excess of furnace capacity. Contact an
authorized professional to determine if your Shelter Furnace has been improperly sized for your home. The heat output range, according
to B415.1-10 testing, is 25,000 to 75,000 BTUs per hour.
Loading Wood:
When opening the fuel door during operation, always wait 10 seconds after releasing the first latch, then open the door the rest of the way.
The dual latch system has been incorporated as a safety feature, designed to reduce the possibility of gaseous ignition. Laboratory testing
has determined that when incomplete combustion occurs the partially spent fuel sometimes concentrates large amounts of potentially
hazardous gases within the fire chamber. If the door is opened suddenly under these conditions, the oxygen may combine with these
gases and cause ignition referred to as “back flash.” Use EXTREME CAUTION when opening the fuel door.
When reloading the furnace, spread embers evenly over the grate. Place smaller pieces of wood on the hot embers and layer larger
pieces on top of them. Finally, due to the wide variety of temperature ranges during the winter, you may experience periods when
it is not necessary to fully load the fire chamber in order to maintain an overnight burn. Your Shelter Furnace will operate at the
highest efficiency by adding fuel in amounts needed to maintain comfortable temperatures in your home.
