United States Stove ASA7 Does Not Pass Through A Combustible Wall, Part B - Contin, Part C Figure

PART B FIGURE 5 - (FIGURE 5 CONTIN-

MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.

UED)

		FLUE
FACTORY-BUILT		CHIMNEY
CHIMNEY LENGHT
	NONSOLUBLE
	REFACTORY
	CEMENT
	CHIMNEY LENGHT
	FLUSH WITH INSIDE
AIR SPACE	OF FLUE
9 IN. MINIMUM

MASONRY CHIMNEY CONSTRUCTED

TO NFPA 211

AIR SPACE

MINIMUM CLEARANCE 9 IN. ALL AROUND

CHIMNEY CONNECTOR TO HEATER

USE CHIMNEY MFRS. PARTS TO

ATTACH CONNECTOR SECURELY

SOLID INSULATED, LISTED FACTORY-BUILT CHIMNEY LENGHT

SHEET STEEL SUPPORTS

(24 GAUGE MIN. THICKNESS)

PART C FIGURE 5

MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.

TWO VENTILATED AIR CHANNELS EACH 1 INCH. CONSTRUCED OF SHEET STEEL.

CHIMNEY THIMBLE

CHIMNEY FLUE

MASONRY CHIMNEY CONSTRUCTED TO NFPA 211

24 GAUGE

VENTILATED THIMBLE WITH TWO 1 INCH AIR CHANNELS

CHIMNEY CONNECTOR

TO HEATER

MINIMUM 6 IN. GLASS

FIBER INSULATION ALL AROUND

SHEET STEEL SUPPORTS

(24 GAUGE MIN. THICKNESS)

PART D FIGURE 5

MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.

SHEET STEEL SUPPORTS
CHIMNEY SECTION
	CHIMNEY THIMBLE
CHIMNEY
CONNECTOR	FLUE
2 IN.	CHIMNEY
AIR SPACE
	MASONRY CHIMNEY CONSTRUCTED
	TO NFPA 211

MINIMUM CLEARANCE 2 IN. ALL AROUND

1 IN. AIR SPACE TO CHIMNEY LENGHT

CHIMNEY CONNECTOR

TO HEATER

SOLID INSULATED, LISTED

FACTORY-BUILT CHIMNEY

LENGHT (12 IN. LONG MIN.)

SHEET STEEL SUPPORTS

(24 GAUGE MIN. THICKNESS)

PART E - (Figure 5)

In addition to the methods shown by A, B, C, and D of Figure 5, a listed factory-built wall pass-through system may be purchased and installed according to the instructions packaged with it to provide a safe method of passing chimney connector through a combustible wall for a connection to a masonry chimney.

CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY WHEN CHINEY CONNECTOR

DOES NOT PASS THROUGH A COMBUSTIBLE WALL

If the chimney connector does not have to pass through a combustible wall to get to a masonry chimney, simply connect the chimney connector directly to the masonry chimney's chimney thimble as described and shown by parts C and D of Figure 5. Remember, the chimney connector should extend into the chimney thimble to the innerface of the chimney flue but not beyond; if the chimnney connector is extended through the chimney thimble into the chimney flue, resistance to the flow of smoke and gases up the chimney will occur; that flow resistance will have an adverse affect on the operation and performance of the heater and venting system.

8 USSC