5
INTRODUCTION
Thank You for your purchase of a U.S. Stove Wood/Coal Burning
Gravity Style (Up-Flow) Furnace. Your decision to buy our furnace
was undoubtedly reached after much careful thought and consider
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ation. We are very proud you chose this furnace and trust you will re
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ceive the comfort and economy that others realize when heating with
a U.S. Stove product.
Your dealer is important in your experience with the furnace not only
with the purchase, but for recommendations for professional instal
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lation in your home. The qualified professional installer has been ex
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pertly trained in solid-fuel furnace installation to assure the safety and
comfort for your family while saving you money. Trust your experi
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enced installer. He is a specialist in this field.
IMPORTANT
Before installing and using your furnace, please read the following
pages thoroughly and carefully. If you follow the instructions, your
furnace will give you safe and more dependable service for years to
come.
• First step: Check your local codes. This installation must comply
with their rulings.
• Do Not install this furnace in a mobile home or trailer
• Always have a smoke or ionization detector and a CO detector
installed in your home.
• To prevent injury or damage, do not allow anyone who is unfa
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miliar with the furnace to operate it.
• This furnace must be installed ONLY in the prescribed manner
shown in illustrations 1, 2, or 3 under the Installation Examples
in this manual. It is NEVER to be installed as a counter-flow or
down-draft furnace, or in any manner wherein the heated air is
directed in a downward flow into the home or toward to an exist
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ing central furnace.
• NEVER INSTALL outside the home.
• Spend adequate time with your furnace to become well acquaint
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ed with the different settings and how each will affect its burning
patterns. It is impossible to state just how each setting will affect
your furnace because of the variations in each installation.
DISCLAIMER NOTICE
The BTU ranges and heating capacity specifications are provided as a
guide and in no way guarantee the output or capacity of this unit. The
actual BTU output depends on the type of fuel being burned and its
conditions, the thermostat setting, the draft adjustment and the chim
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ney to which the unit is attached. The actual area that this unit will
heat depends on factors such as the conditions of the building, heat
loss, type of construction, amount of insulation, type of air movement,
the location of the unit and more importantly the duct work and re
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turn air facility.
Warning:
Do not alter this appliance in any way other than specified in these
instructions. Doing so may void your warranty.
LOCATING YOUR FURNACE
The furnace is to be installed maintaining the clearances specified in
the following illustrations.
CLEARANCES
REDUCED CLEARANCES
NFPA guidelines and most codes permit reduced clearances to com
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bustible walls and ceilings if adequate protection is added. A common
mistake is to assume that sheet metal, masonry, or millboard placed
directly against a wall protects it. Materials installed in this manner
actually provides very little protection. These materials are good heat
conductors, so they will be almost as hot on their back side as they are
on the exposed side. Therefore, the combustible wall behind is still a
fire hazard.
A wall can be kept cool using these items but only if they are mounted
and spaced out from the wall by an inch or two to allow free air cir
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culation behind the protective panel. The protective panel should also
have a gap between the floor and ceiling.
Three rules to follow when constructing wall protectors:
1. Non-combustibility of all materials including mounting and
supporting.
2. A well ventilated air space between protector and wall.
3. Sufficient strength and rigidity so that the protector and air
space will be durable.
PROTECTIVE COVERING
AND ALL SUPPORTS MUST
BE NON-COMBUSTIBLE
CONSTRUCTING
NON-COMBUSTIBLE
WALLS
2 in [5cm]
FROM FLOOR
2 in. [5cm]
FROM CEILING
1 in [2.5cm]
AIR SPACE
Do not place the furnace directly on a combustible floor. If you are
placing it on a combustible floor, an approved fire retardant material,
equivalent to 3/8” UL Listed millboard, should be placed under the
unit. The material must extend at least 16 inches beyond the front of
the unit and 8 inches on either side of the fuel loading door opening. It
must also extend underneath the chimney connector and to each side
of the connector by at least 2 inches.
22”
12”
20”
15”
COMBUSTIBLE WALL
COMBUSTIBLE WALL
FLUE
(TOP VIEW)
MINIMUM CLEARANCES
TO A COMBUSTIBLE
WALL
CAUTION:
DO NOT store
combustible or
flammable materials or
liquids near the
furnace.
Summary of Contents for SF747
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