HORIZONTAL VENT FIGURES / TABLES (CONTINUED)

H1H

Table H

H+H1 Maximum

H Maximum

V Minimum

feet

(meter)

feet

(meter)

feet

(meter)

5

(1.524)

2

(0.610)

1

(0.305)

�When using Secure Flex, use Firestop/Spacer SF4.5VF.

�When using Secure Flex, use Firestop/Spacer SF4.5HF.

V

�Wall

Firestop/Spacer

(SV4.5HF)

�Ceiling

Firestop/Spacer

(SV4.5VF)

10

(3.048)

4

(1.219)

2

(0.610)

 

 

 

 

 

 

15

(4.572)

6

(1.829)

3

(0.914)

 

 

 

 

 

 

20

(6.096)

8

(2.438)

4

(1.219)

 

 

 

 

 

V + H + H1

= 40 feet (12.2 m) Max

 

 

H = 8 feet (2.438 meters) Max.

 

 

H + H1 = 20 feet (6.096 meters) Max.

Example: If 20 feet of (H + H1) 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+ H1) horizontal run, up to a maximum horizontal run of 20 feet.

See Table 12 on Page 19 as an aid in venting component selection for a particular range of exterior wall thick- nesses.

Square termination (SV4.5HT-2) shown.

Figure 39 - Rear Vent - TWO 90 DEGREE ELBOWS

�Wall Firestop/Spacer (SV4.5HF)

H

H1

�Note - When using

 

Secure Flex, use

Wall Firestop/Spacer

Firestop/Spacer SF4.5VF.

�

�When using Secure Flex,

(SV4.5HF)

 

use Firestop/Spacer

�Ceiling

SF4.5HF.

 

Firestop/Spacer

 

(SV4.5VF)

Square termination (SV4.5HT-2) shown.

See Table 12 on Page 19 as an aid in venting component selection for a particular range of exterior wall thicknesses.

Figure 40 - Top Vent - TWO 90 DEGREE ELBOWS

 

 

 

 

Table J

 

 

 

 

 

 

 

 

 

 

 

 

 

H + H1 Maximum

 

V Minimum

 

 

 

feet

 

(meter)

 

feet

(meter)

 

 

 

 

 

 

 

 

 

 

 

 

3

 

(0.914)

 

Elbow Only

 

 

 

 

 

 

 

 

 

 

 

 

5

 

(1.524)

 

1

(0.305)

 

 

 

 

 

 

 

 

 

 

V

 

10

 

(3.048)

 

2

(0.610)

 

 

 

15

 

(4.572)

 

3

(0.914)

 

 

 

 

 

 

 

 

 

 

 

 

20

 

(6.096)

 

4

(1.219)

 

 

 

 

 

 

 

 

 

 

 

 

V + H + H1 = 40 feet (12.2 m) Max.

 

 

 

 

 

H + H1 = 20 ft. (6.096 m) Max.

 

 

Example: If 20 feet of (H + H1) 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+ H1) horizontal run, up

 

to a maximum horizontal run of 20 feet.

 

 

An elbow is acceptable as 1 foot of vertical rise except where an elbow is the only vertical component in the system. See Figure 37.

20

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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Image 20
Lennox Hearth LMDVR-3328-CPM, LMDVT-3328-CPM, LMDVT-3328-CNM, LMDVR-3328-CNM, LMDVT-3328-CNE Horizontal Vent Figures / Tables
Page 19 Page 21

LMDV-3530-CNM, LMDV-35 Series, LMDVR-3328-CNE, LMDV-4035-CNE, LMDV-4035-CPM specifications

Lennox Hearth products are renowned for their quality, efficiency, and innovative technologies that optimize the home heating experience. Among the standout offerings in their lineup are the LMDV-3530-CPM, LMDVR-3328-CPM, LMDV-3530-CNE, LMDVT-3328-CPM, and LMDVR-3328-CNM models. Each of these products embodies the brand's commitment to performance and design, making them a popular choice for modern homeowners.

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Overall, Lennox Hearth’s suite of models combines elegance, efficiency, and innovation, ensuring that homeowners can find the perfect heating solution to complement their living spaces. Each product is engineered with state-of-the-art technologies that reflect Lennox’s dedication to quality and customer satisfaction.
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