Fueling Instructions - United States Stove Company Hot Blast HB1520 Owner’s Instruction And Operation Manual

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Table of Contents

piece ends. If cracks are radiating in all directions from

the center then the wood should be dry enough to burn.

If your wood sizzles in the fire, even though the surface

is dry, it may not be fully cured and should be seasoned

longer. It is EXTREMELY IMPORTANT that you use DRY

WOOD only in your wood stove. The wood should have

dried for 9 to 15 months, such that the humidity content

(in weight) is reduced below 20% of the weight of the log.

It is very important to keep in mind that even if the wood

has been cut for one, two, or even more years, it is not

necessarily dry, if it has been stored in poor conditions.

Under extreme conditions, it may rot instead of drying.

This point cannot be overstressed; the vast majority of

the problems related to the operation of a wood stove is

caused by the fact that the wood used was too damp or

had dried in poor conditions. These problems can be:

• ignition problems

• creosote build-up causing chimney fires

• low energy yield

• blackened windows

• incomplete log combustion

Do not burn manufactured logs made of wax

impregnated sawdust or logs with any chemical

additives.

TESTING YOUR WOOD

• When the furnace is thoroughly warmed, place one

piece of split wood (about five inches in diameter)

parallel to the door on the bed of red embers.

• Adjust all air controls to there maximum settings and

close the door. If ignition of the piece is accomplished

within 90 seconds from the time if was placed in the

furnace, your wood is correctly dried. If ignition takes

longer, your wood is damp.

If your wood hisses and water or vapor escapes at

the ends of the piece, your wood is soaked or freshly

cut (green). Do not use this wood in your stove. Large

amounts of creosote could be deposited in your chimney,

creating potential conditions for a chimney fire.

POWER FAILURE

DO NOT add additional fuel after a power failure, remove

all air filters and reduce combustion air to a minimum.

Observe furnace closely until power is restored.

TAMPER WARNING

This wood furnace has a manufacturer-set minimum low

burn rate that must not be altered. It is against federal

regulations to alter this setting or otherwise operate this

wood furnace in a manner inconsistent with operating

instructions in this manual.

EFFICIENCIES

Efficiencies can be based on either the lower heating

value (LHV) or the higher heating value (HHV) of the

fuel. The lower heating value is when water leaves the

combustion process as a vapor, in the case of woodstoves

the moisture in the wood being burned leaves the stove

as a vapor. The higher heating value is when water leaves

the combustion process completely condensed. In the

case of woodstoves this would assume the exhaust gases

are room temperature when leaving the system, and

therefore calculations using this heating value consider

the heat going up the chimney as lost energy. Therefore,

efficiency calculated using the lower heating value of

wood will be higher than efficiency calculated using the

higher heating value. The best way to achieve optimum

efficiencies is to learn the burn characteristic of you

appliance and burn well-seasoned wood. Higher burn

rates are not always the best heating burn rates; after a

good fire is established a lower burn rate may be a better

option for efficient heating. A lower burn rate slows the

flow of usable heat out of the home through the chimney,

and it also consumes less wood.

NOTICE - INITIAL BURNS TO CURE PAINT

BECAUSE OF THE HIGH OPERATING TEMPERATURES,

THIS APPLIANCE IS COATED WITH A SPECIAL HIGH

TEMP PAINT WHICH REQUIRES A SERIES OF LOW TO

MEDIUM BURNS TO FULLY CURE FOR DURABILITY

AND A LIFETIME OF SERVICE.

Proper curing of the high-temp paint requires a series of

three initial burns. The appliance should be allowed to

cool off between each burn. The first two burns should

be small fires and low temperatures (250°F) for a

duration of 20 minutes each. The third fire should be at

a temperature of approximately 500°F for 20 minutes.

Provide adequate cross ventilation to clear any smoke or

odor caused by initial firings.

Notice: Use solid wood fuel only! Do not burn garbage,

or flammable fluids. Do not use coal. This appliance

is not designed to accommodate the air flow (draft)

required to properly burn coal or coal products. Do

not elevate the fire using grates or irons. Build the fire

directly on the firebrick.