PROPER CHIMNEYS
The National Fire Protection Association (NFPA) requires that all factory built chimneys be Listed and
installed in accordance with conditions of the Listing in the manufacturers instructions. NFPA also
requires that your chimney extend at least three (3) feet above the highest point when it passes through
the roof and at least two (2) feet higher than any portion of the building within ten (10) feet of the
chimney.
Factory built chimneys must be what NFPA refers to in NFPA 211 1-5.217.4 as Type HT. HT is an
abbreviation meaning high temperature.
Masonry Chimneys as referred to in NFPA 211 1-5.2.17.6, a field constructed chimney of solid masonry
units, bricks, stones, listed masonry chimney units, or reinforced concrete that is lined with suitable chim-
ney flue liners and built with the provisions of Chapter 4 of this standard.
As described in NFPA 54 (National Fuel Gas Code) section 7.5.5 (c) A Listed combination gas and solid
fuel appliance equipped with a manual reset device to shut off gas to the main burner in the event of flue
gas spillage shall be permitted to be connected to a single chimney flue. The chimney flue shall be sized
to properly vent the appliance.
All gas-solid fuel and oil-solid fuel combination furnaces in this manual are Underwriters Laboratories
Listed for one flue.
RIDGE
More than 10 ft.
(3.1m)
10 ft. (3.1m)
2 ft. (0.61m)
minimum
Chimney 3ft. (0.92m)
minimum
RIDGE
Less than 10 feet
(3.1m)
2 ft. (0.61m)
minimum
Chimney 3 ft. (0.92m)
minimum
CHIMNEY TERMINATION (LESS THAN 10 FEET)
CHIMNEY TERMINATION (MORE THAN 10 FEET)
16
WARNING
:
CHECK YOUR CHIMNEY.
The chimney should be no less than
8 inches inside diameter or equal. The
chimney is a very important part of your
heating system. It must be the right size, properly
constructed and in good condition. No furnace can
function properly with a bad chimney. The chimney
must supply a draft of at least -.03 Water Column.
If possible, use a 15 foot or higher chimney. Add
an additional foot to chimney for each 1000 feet of
elevation above sea level.
Plan Your Installation
Summary of Contents for LWO-112
Page 9: ...9 Furnace Features Eagle I Husky...
Page 11: ...11 Furnace Features Eagle II Polar...
Page 31: ...OIL AND WOOD COAL HEATING WITH A C 31 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 32: ...GAS AND WOOD COAL HEATING ONLY 32 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 33: ...GAS AND WOOD COAL HEATING WITH A C 33 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 56: ...EAGLE I HUSKY MODELS LWO 112 LWG 112 56 Exploded Views Parts Lists...
Page 58: ...EAGLE II POLAR MODELS LWO 168 LWG 168 58 Exploded Views Parts Lists...
Page 62: ...WAYNE MODEL P250AF DIN GAS BURNER 62 Exploded Views Parts Lists...
