SECTION C: Installation

Fig. 5: Minimum Clearances from Vent/Air Inlet Terminations – Indoor and Outdoor Installations

 

 

U.S. Installations1

Canadian Installations2

A

Clearance above grade, veranda, porch, deck, or

1 ft (30 cm)

1 ft (30 cm)

balcony

 

 

 

 

 

4 ft (1.2m) below or to side

 

B

Clearance to window or door that may be opened

of opening; 1 foot (30 cm)

3 ft (91 cm)

 

 

above opening

 

C

Clearance to permanently closed window

*

*

 

 

 

 

 

Vertical clearance to ventilated soffit located

 

*

D

above the terminal within a horizontal distance of

5 ft (1.5m)

 

2 ft (61cm) from the centerline of the terminal

 

 

E

Clearance to unventilated soffit

*

*

 

 

 

 

F

Clearance to outside corner

*

*

G

Clearance to inside corner

6 ft (1.83m)

*

 

Clearance to each side of center line extended

*

3 ft (91 cm) within a height

H

15 ft above the me-

above meter/regulator assembly

 

 

ter/regulator assembly

 

 

 

I

Clearance to service regulator vent outlet

*

6 ft (1.83m)

 

Clearance to non-mechanical air supply inlet to

4 ft (1.2m) below or to side

 

J

building or the combustion air inlet to any other

of opening; 1 ft (30 cm)

3 ft (91 cm)

 

appliance

above opening

 

K

Clearance to mechanical air supply inlet

3 ft (91 cm) above if within

6 ft (1.83m)

10 ft (3m) horizontally

 

 

 

L

Clearance above paved sidewalk or paved

7 ft (2.13m)

7 ft (2.13m) t

driveway located on public property

 

 

 

M

Clearance under veranda, porch, deck or balcony

*

12 in. (30 cm) TT

1In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Code

2In accordance with the current CAN/CGA-B149 Installation Codes

tVent terminal shall not terminate directly above sidewalk or paved driveway located between 2 single family dwellings that serves both dwellings TT Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor and top of terminal and underside of

veranda, porch, deck or balcony is greater than 1 ft (30cm)

* Clearances in accordance with local installation codes and the requirements of the gas supplier

Table D: Vent/Air Inlet Termination Clearances

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Raypak 503-2003 manual Installations1 Canadian Installations2

503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

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