PART B FIGURE 5 - (FIGURE 5 CONTIN-
MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.
UED)
|
| FLUE |
| 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
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
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
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 |