HORIZONTAL VENT FIGURES/TABLES (CONTINUED)
| **Wall | |
| Firestop/Spacer | |
| H | |
H1 | V* | |
| ||
***Note - When using |
| |
Secure Flex, use | **Wall | |
Firestop/Spacer SF4.5VF | ||
Firestop/Spacer | ||
|
TABLE D
H + H1 Maximum | V Minimum | ||
feet | (meters) | feet | (meters) |
|
|
|
|
5 | (1.524) | 1 | (0.305) |
|
|
|
|
10 | (3.048) | 2 | (0.610) |
|
|
|
|
15 | (4.572) | 3 | (0.914) |
20 | (6.096) | 4 | (1.219) |
**Use Firestop/Spacer SV4.5HF or SF4.5HF when using Secure Vent or Secure Flex respectively. Use Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using Secure Vent or Secure Flex on horizontal vent runs for the MPLDV35/40/45 with a center line lower than 48” (1219 mm) above the fireplace top wrapper surface. In all cases the firestop/spacer provided with the termination may be used with the termination, frame to 5” clearance where applicable.
***Ceiling
Firestop/Spacer
(SV4.5VF)
Support Bracket
*To Top Surface Of
Fireplace
V + H + H1 = 40 feet (12.2 m) Max.
H+ H1 = 20 ft. (6.096 m) Max.
Example: If 20 feet of (H) horizontal vent run is needed, then 4 feet minimum of (V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio. For every 1 foot of (V) vertical, you are allowed 5
Square termination (SV4.5HT-2) shown.
See Table 3 on page 18 as an aid in venting component selection for a particular range of exterior wall thicknesses.
feet of (H) horizontal run, up to a maximum horizontal run of 20 feet.
Figure 32 - Top Vent - TWO 90 DEGREE ELBOWS - ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE
H1
***Wall
Firestop/Spacer
V1
**When using Secure Flex, use Firestop/Spacer SF4.5VF
**Ceiling
Firestop/Spacer
(SV4.5VF)
H
TABLE E
H + H1 Maximum | V + V1 Minimum | |||
feet |
| (meters) | feet | (meters) |
|
|
|
|
|
5 |
| (1.524) | 1 | (0.305) |
10 |
| (3.048) | 2 | (0.610) |
15 |
| (4.572) | 3 | (0.914) |
20 |
| (6.096) | 4 | (1.219) |
| H + H1 = 20 feet (6.096 m) Max. | |||
V + V1+ H + H1 = 40 ft. (12.192 m) Max.
***Use Firestop/Spacer SV4.5HF or SF4.5HF when using Secure Vent or Secure Flex respectively. Use Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using Secure Vent or Secure Flex on horizontal vent runs for the MPLDV35/40/45 with a center line lower than 48” (1219 mm) above the fireplace top wrapper surface. In all cases the firestop/spacer provided with the termination may be used with the termination, frame to 5” clearance where applicable.
**Ceiling 
***Wall Firestop/Spacer
Firestop/Spacer (SV4.5VF)
Support Bracket
*To Top Surface
Of Fireplace
V* | Example: If 20 feet of (H) horizontal vent | |
run is needed, then 4 feet minimum of (V) | ||
| ||
| vertical vent will be required. | |
| This table shows a 1 (V) to 5 (H) ratio. For | |
| every 1 foot of (V) vertical, you are allowed | |
| 5 feet of (H) horizontal run, up to a maxi- | |
| mum horizontal run of 20 feet. |
20
Square termination (SV4.5HT-2) shown.
See Table 3 on page 18 as an aid in venting component selection for a particular range of exterior wall thicknesses.
Figure 33 - Top Vent - THREE 90 DEGREE ELBOWS - ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.