Bryan Furnace 450, Owner'S Manual

Page: 4 / 23

4
OPERATING INSTRUCTIONS
HOW IT WORKS
Your Bryan Furnace is an airtight, draft induced furnace located inside an insulated
metal shelter. The blower located on top of the furnace pulls cold (return) air from the
building, passes it through the shelter where it picks up heat from the combustion cham-
ber, and forces the air back into the building through the hot (supply) air duct. Combus-
tion air is induced into the combustion chamber by a forced air blower located on top of
the shelter under the fan cover and exhaust gases leave through the flue on top of the fur-
nace. The two systems are sealed from each other and combustion gases will not normally
be released into the building.
OPERATION
Please keep in mind when operating any solid fuel heater that unlike a gas, oil or
electric heater, the fire cannot simply be turned on or off to control building temperature.
Once a solid fuel fire is established, it must be allowed to burn to conclusion.
FIREWOOD
The Bryan Furnace Model 450 will burn any type of wood up to 12” in diameter and
42” in length. Wood can be burned either with or without the provided grates. Store your
fuel in a dry covered area with good ventilation. Do not stack wood against the building as
this invites an insect infestation. Do not store fuel within the furnace installation clear-
ances or within the space required for refueling and ash removal.
Firewood varies greatly in quality due to species and moisture content. Wood that
is seasoned and dry greatly improves the efficiency of the furnace. Wood of over 20%
moisture will not burn well. Pine and some other softwoods burn very quickly with high
creosote production and very few coals. These woods are best used to start hardwood
fires.
BUILDING A FIRE
Place several pieces of
crumbled newspaper on the
grate, crisscross the news-
paper balls with a couple of
hands full of dry kindling, 3/4” thickness or less, then several small pieces of dry firewood.
Be sure that smoke is visible from the chimney cap, indicating the flue is not restricted. It
will take 5 to 10 minutes for the fire to establish itself. Once you have some good red hot
burning embers, add larger pieces of wood. Do not be afraid to fill the unit full as it takes a
lot of heat to get the unit to come on initially. It is best to keep the indoor t-stat in the
“off” position until a fire is well established. Once the fire is established, turn the indoor t-
stat on and close all doors. Initially it might take up to thirty minutes before the main
blowers come on. A lot depends on the outside temperature.
4
CAUTION
Never use chemicals or fluids to start or freshen
-up a fire. Do not burn garbage, gasoline, naph-
tha, engine oil or any other fuel not approved
CAUTION
The handle on the doors can become extremely hot, use
care when handling. Doors must be closed whenever the
furnace is unattended to prevent dangerous overheating.