18
USING FLEXIBLE VENT COMPONENTS
ELBOW
SPACERS
!WARNING
Do not allow the 4" flexible vent pipe to bunch up on horizontal or vertical runs and elbows. Keep it pulled tight. A 1 1/4” air gap between the 4" and 7" flexible vent pipes all around is required for safe operation. A spacer is required at the start, middle and end of each elbow to ensure this gap is maintained. Spacers are attached to the 4" flexible vent pipe at predetermined intervals to maintain a
must not be removed.
Use only approved flexible vent pipe kits marked:
FIGURES 22a&b
“Wolf Steel Approved Venting” as identified by the stamp only on the 7” flexible vent pipe.
Six inches (6") is the minimum bend radius allowed for the seven inch (7") diameter flexible vent pipe.
For optimum performance it is recommended that all horizontal runs have a minimum 1" rise per foot using flexible vent components.
For safe and proper operation of the fireplace, follow the venting instructions exactly.
All 4" flexible vent pipe and 7" flexible vent pipe joints may be sealed using high temperature sealant
HORIZONTAL AIR TERMINAL INSTALLATION
For safe and proper operation of the fireplace, follow the venting instructions exactly.
1.Stretch the 4" flexible vent pipe to the required length taking into account the additional length needed for the finished wall surface. Slip the vent pipe a minimum of 2" over the inner sleeve of the air terminal and secure with 3 #8 screws. Apply a heavy bead of the high temperature sealant
NOTE: If using pipe clamps to connect vent components, 3 screws must also be used to ensure the connection cannot slip off.
CAUT |
|
ATTENTI | ION- |
| HOT |
| ON- |
| CHAUD |
CAULKING
4" FLEXIBLE VENT PIPE
7" FLEXIBLE
2. Using the 7" flexible vent pipe, slide over the outer combustion air |
|
| 2" OVERLAP | VENT PIPE | |
|
|
| |||
sleeve of the air terminal and secure with 3 #8 screws. Seal using high |
|
|
|
|
|
temperature sealant | FIGURE 23 |
| HIGH TEMPERATURE | ||
3. Insert the vent pipes through the firestop maintaining the required | #10x2" |
| SEALANT | ||
| SCREWS |
|
| ||
clearance to combustibles. Holding the air terminal (lettering in an upright, | HIGH |
| #8 X 1/2” |
|
|
readable position), secure to the exterior wall and make weather tight by |
|
|
| ||
| SELF DRILLING | ||||
sealing with caulking (not supplied). | TEMPERATURE | SCREWS AND | FIGURE 24 | ||
4. If more vent pipe needs to be used to reach the fireplace, couple them | SEALANT |
| WASHERS |
| |
|
|
|
| ||
together as illustrated. The vent system must be supported approximately |
|
| 4” COUPLER |
| 7” COUPLER |
every 3 feet for both vertical and horizontal runs. Use noncombustible |
|
|
|
|
|
strapping to maintain the minimum 1" clearance to combustibles. |
|
|
| 7” FLEXIBLE | |
|
|
|
| ||
The air terminal mounting plate may be recessed into the exterior wall | 7” FLEXIBLE |
|
| VENT PIPE | |
| 4” |
|
| ||
or siding by 1½", the depth of the return flange. | VENT PIPE |
| FLEXIBLE |
|
|
VENT PIPE
VERTICAL AIR TERMINAL INSTALLATION
1. Fasten the roof support to the roof using the screws provided. The roof support is optional. In this case the venting is to be adequately supported using either an alternate method suitable to the authority having
jurisdiction or the optional roof support. Figure 25.
2.Stretch the 4" flexible vent pipe to the required length. Slip the 4" flexible vent pipe a minimum of 2” over the inner sleeve of the air terminal connector and secure with 3 #8 screws. Seal using a heavy bead of high temperature sealant
NOTE: If using pipe clamps to connect vent components, 3 screws must also be used to ensure the connection cannot slip off.
3. Repeat using the 7" flexible vent pipe, using a heavy bead of high temperature | ROOF SUPPORT | |
sealant | ||
|
