United States Stove 1800GC manual Smoke Pipe Installation, Creosote Formation and Need For Removal

NOTE: Type of chimney: Class A All-Fuel also referred to as Low-Heat appliance type chimney per Uniform Mechanical Code:

Chimney, low-heat appliance type is a factory built, masonry or metal chimney suitable for removing the products of combustion from fuel-burning low-heat appliances produc- ing combustion gases not in excess of 1000°F (538°C) under normal operating conditions but capable of producing com bustion gases of 1400°F (760°C) during intermittent forced firing for periods up to one hour. All temperatures are measured at the appliance flue outlet.

TOP OF CHIMNEY MUST BE	CAP SHOULD HELP
2 FT. (60.96cm) ABOVE	PREVENT DOWNDRAFT
HIGHEST POINT OF ROOF	WHILE STILL PROVIDING
	ADEQUATE EXHAUST.

2 FT. (60.96cm) MINIMUM

3 FT. (91.44cm)

MINIMUM

MINIMAL 3 FT.	RECOMMENDED
	MINIMAL 20 FT.
(91.44cm) FROM TOP
	(6.10m) HEIGHT
OF CHIMNEY TO
POINT AT WHICH IT
PASSES THROUGH
THE ROOF.
CHIMNEY FLUE
SHOULD BE	CHIMNEY FLUE
CONSTANT DIAMETER	MUST BE AS
THROUGHOUT ITS	LARGE OR
ENTIRE HEIGHT.	LARGER THAN
APPROVED	FURNACE FLUE
	PIPE
CHIMNEY

CLEANOUT DOOR

SHOULD HAVE

AIRTIGHT FIT. DO

NOT LEAVE OPEN

WHEN FURANCE IS

IN OPERATION.

CHIMNEY THIMBLE SHOULD BE

CONSTRUCTED OF FIRE CLAY, AND

SHOULD FIT TIGHTLY TO FLUE PIPE.

1.The wood furnace should be the only heating appliance using a chimney flue. One furnace per flue.

2.A masonry chimney should have a tile or stainless steel liner.

3.The masonry chimney should not have any missing mortar or loose bricks.

4.There should be no mortar or parts of the chimney blocking the chimney flue.

5.There should be a two inch clearance between any chimney (masonry or metal) and combustibles (such as the house).

6.The chimney should extend at least 2' above the highest point of the house, or 2' above the point at which the chimney is 10' from the roof.

7.The chimney should be relatively straight and vertical.

8.The portion of an all-fuel metal chimney that extends above the roof should be well secured.

9.A masonry chimney should be built on footings and not attached to the house.

10.A rain cap, complete with an animal or bird screen, should be installed on top of the chimney.

CREOSOTE — FORMATION AND NEED

FOR REMOVAL

When wood is burned slowly, it produces tar and other organic vapors, which combine with expelled moisture to form creosote. The creosote vapors condense in the relatively cool chimney flue of a slow-burning fire. As a result, creosote residue accumulates on the flue lining. When ignited, this creosote makes an extremely hot fire.

The chimney connector and chimney should be inspected at least twice monthly during the heating season to determine if a creosote build-up has occurred. If creosote has accumulated, it should be removed to reduce the risk of a chimney fire.

SMOKE PIPE INSTALLATION

Clearances to combustible materials (i.e. paneling, ceiling tile, sheet rock, plaster, draperies, casements or wood trim, etc.) will vary with the type of flue connection used. Be sure to maintain the specified clearances for your type of installation.

TYPE OF FLUE	REQUIRED
CONNECTION	CLEARANCE
24 Gauge or Heavier	18" (45.72cm)
Single Wall Stainless Steel
or Black Pipe

Double Wall Stainless Steel 6" (15.24cm) Model 1600 8" (20.32cm) Model 1800

Class A All-Fuel or Equivalent 2" (5.08cm)

COMBUSTIBLES

SMOKE PIPE

According to NFPA standards, single wall stove pipes can be within 9" (22.86cm) of combustibles provided an approved fire retardant material covered with 28 gauge sheet metal, spaced out 1" (2.54cm) on non-combustible spacers, is utilized. See illustration.

18" (45.72cm) 9" (22.86cm) 18" (45.72cm)

CEILING OR WALL

When using a Class A or double wall flue pipe connection, follow the manufacturer's instructions.

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