beautypg.com

Termination clearances sidewall power vent, N “figure: 16” a, E “figure: 16” a – State SHE75 100NE User Manual

Page 29

background image

29

TERMINATION CLEARANCES SIDEWALL POWER VENT

V

X

VENT TERMINAL

AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

v

v

A

G

V

FIXED

CLOSED

FIXED

CLOSED

OPERABLE

OPERABLE

V

C

B

B

B

B

F

B

V

V

A

J

V

H

M

X

X

V

V

K

B

E

D

L

POWER VENT

(using room air for combustion)

EXTERIOR CLEARANCES FOR SIDEWALL VENT TERMINATION

Figure: 16

Vent terminal clearances for “Power Vent” installations. Power Vent configurations use room air for combustion.

CANADIAN INSTALLATIONS 1

US INSTALLATIONS 2

CANADIAN INSTALLATIONS 1

US INSTALLATIONS 2

A

Clearance above grade,

veranda, porch, deck or

balcony

12 inches (30 cm)

12 inches (30 cm)

H

Clearance to each side

of center line extended

above meter/regulator

assembly

3 feet (91 cm) within a height 15 feet

(4.5 m) above the meter/

regulator assembly

3 feet (91 cm) within a

height 15 feet (4.5 m)

above the meter/regulator

assembly*

B

Clearance to window

or door that may be

opened

6 inches (15 cm) for appliances up to

10,000 Btu/hr (3 kW), 12 inches (30

cm) for appliances between 10,000

Btu/hr (3 kW) and 100,000 Btu/hr (30

kW), 36 inches (91 cm) for appliances

above 100,000 Btu/hr (30 kW)

4 feet (1.2 m) below

or to side of opening;

1 foot (30 cm) above

opening

I

Clearance to service

regulator vent outlet

3 feet (91 cm)

3 feet (91 cm)*

C

Clearance to

permanently closed

window

12 inches (30 cm)*

12 inches (30 cm)*

J

Clearance to a non

mechanical air supply

inlet into building or

combustion air inlet to

any other appliance

6 inches (15 cm) for appliances up

to 10,000 Btu/hr (3 kW), 12 inches

(30 cm) for appliances between

10,000 Btu/hr (3 kW) and 100,000

Btu/hr (30kW), 36 inches (91cm)

for appliances above 100,000 Btu/

hr (30 kW)

4 feet (1.2 m) below or to

side of opening; 1 foot

(30 cm) above opening.

D

Vertical clearance to

ventilated soffit located

above the terminal

within a horizontal

distance of 2 feet (61

cm) from the center line

of the terminal

12 inches (30 cm)*

12 inches (30 cm)*

K

Clearance to a

mechanical air supply

inlet

6 feet (1.83 m)

3 feet (91 cm) above if

within

10 feet (3 m) horizontally

E

Clearance to

unventilated soffit

12 inches (30 cm)*

12 inches (30 cm)*

L

Clearance above paved

sidewalk or paved

driveway located on

public property

7 feet (2.13 m)†

7 feet (2.13 m)

F

Clearance to outside

corner

2 feet (60 cm)*

2 feet (60 cm)*

M

Clearance under

veranda, porch, deck, or

balcony

12 inches (30 cm) ‡

12 inches (30 cm) ‡

G

Clearance to inside

corner

18 inches (45 cm)*

18 inches (45 cm)*

1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
† A vent shall not terminate where it may cause hazardous frost or ice accumulations on adjacent property surfaces.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
* Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer’s installation instructions.

This manual is related to the following products: