Vent Installation

Vent Termination Locations

Air Supply Inlet

Vent Terminal

Area Where Terminal Is Not Permitted

Vertical Terminal

(From Eave)

24”

(610mm)

D

E

M

H

 

B

 

F

 

J

Vertical Terminal

24”

(610mm)

G

A

Fixed Closed

 

B

B

 

N

C

 

 

L

 

 

 

 

B

 

 

K

 

 

A

B

Able To Open

A = Clearance above grade, veranda, porch, deck, or balcony (min. 12”/30cm)

B = Clearance to window or door that may be opened (min. 12”/30cm above - 48”/1.2m below and to the side)

C = Clearance to permanently closed window *(min. 12”/30cm)

D = Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of *(min. 24”/60cm) from the centerline of the terminal (min. 22”/55cm) check with local code.

E = Clearance to unventilated soffit *(min. 12”/30cm) F = Clearance to outside corner *(min. 12”/30cm)

G = Clearance to inside corner *(min. 12”/30cm)

H = Not to be installed above a meter/regulator assembly within *(min. 36”/90cm) horizontally from the center- line of the regulator.

J = Clearance to service regulator vent outlet *(min. 72”/1.8m)

K = Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance *(min. 48”/1.2m)

Figure 11

L = Clearance to a mechanical air supply inlet *(min. 120”/3.1m)

M = **Clearance above paved sidewalk or a paved driveway located on public property *(min. 84”/2.1m)

N = ***Clearance under veranda, porch, deck, or balcony (min. 12”/30cm)

Note:

*Local codes or regulations may require different clear- ances.

**A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.

***Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.