E

C F

J B

B

i

D G M

H OR i

 

 

K

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

O

 

 

 

 

 

L

 

 

 

 

 

 

 

K

 

K

 

Q

 

 

 

V

Electrical

V

 

 

 

 

 

 

 

 

 

Service

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

P

V

(See Note 2)

Measure vertical clearances from this surface.

Measure horizontal clearances from this surface.

V

= VENT TERMINAL

X = AIR SUPPLY INLET

= AREA WHERE TERMINAL IS NOT PERMITTED

A

=

12 inches

clearances above grade, veranda,

J**

=

.7 ft ......................... clearance above paved

 

 

(See Note 1)

porch, deck or balcony

 

 

 

 

(See Note 1)

sidewalk or a paved driveway

B

=

12 inches

clearances to window or door

 

 

 

 

 

 

 

located on public property

 

 

 

 

42 inches

vinyl

 

 

 

 

 

 

that may be opened, or to perma-

 

 

 

 

 

 

 

 

 

 

nently closed window. (Glass)

K

=

 

6 inches.................clearance from sides of electri-

C

=

18 inches

vertical clearance to unventilated

 

 

 

 

(See Note 5)

cal service

 

 

 

 

 

 

soffit or to ventilated soffit located

L

=

12 inches

clearance

above electrical

 

 

 

above the terminal

 

 

 

 

(See Note 5)

service

 

 

 

 

 

30 inches

for vinyl clad soffits and below

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Covered Alcove Applications

 

 

 

 

 

 

 

 

electrical service

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M*** =

18 inches................ clearance under veranda,

 

D

=

9 inches

clearance to outside corner

 

 

 

E

=

6 inches

clearance to inside corner

 

 

 

 

 

 

 

porch,deck, balcony or over-

 

 

 

 

 

 

 

 

hang

 

 

 

F

=

3 ft. (Canada)

not to be installed above a gas

 

 

 

 

 

 

 

 

 

 

 

 

N

 

=

6 inches ..................non-vinyl sidewalls

 

 

 

 

meter/regulator assembly within 3

 

 

 

 

 

 

 

 

 

 

 

 

12 inches ................vinyl sidewalls

 

 

 

 

feet (90 cm) horizontally from the

 

 

 

 

 

 

 

 

 

center-line of the regulator

 

 

O

 

=

8 ft.

 

 

 

 

 

 

G

=

3 ft

clearance to gas service regulator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMIN

 

QMAX

 

 

 

 

 

vent outlet

 

 

 

 

 

 

 

 

 

 

H

=

9 inches (U.S.A.)

 

 

 

 

1 cap

 

3 feet

 

2 x Q ACTUAL

 

 

 

 

 

 

 

 

 

 

 

 

 

12 inches (Canada) clearance to non-mechanical

 

 

 

 

2 caps

 

6 feet

 

1 x Q ACTUAL

 

 

 

 

(See Note 2)

air supply inlet to building or the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 caps

 

9 feet

 

2/3 x Q ACTUAL

 

 

 

 

 

combustion air inlet to any other

 

 

 

 

 

 

 

 

 

 

 

appliance

 

 

 

 

 

 

 

 

 

 

 

 

 

i

=

3 ft. (U.S.A.)

 

 

 

 

4 caps

 

12 feet

 

1/2 x Q ACTUAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 ft. (Canada)

clearance to a mechanical (pow-

 

 

 

PMIN = # termination caps x 3

QMAX = (2 / # termination caps) x PACTUAL

 

 

 

 

(See Note 2)

ered) air supply inlet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

**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 2 sides beneath the floor, or meets Note 2.

Note 1: On private property where termination is less than 7 feet above a sidewalk, driveway, deck, porch, veranda or balcony, use of a listed cap shield is suggested. (See vents components page)

Note 2: Termination in a covered alcove space (spaces open only on one side and with an overhang) are permitted with the dimensions specified

for vinyl or non-vinyl siding and soffits. 1. There must be 3 feet minimum between termination caps. 2. All mechanical air intakes within 10 feet of a termination cap must be a minimum of 3 feet below the termination cap. 3. All gravity air intakes within 3 feet of a termination cap must be a minimum of 1 foot below the termination cap.

Note 3: Local codes or regulations may require different clearances.

Note 4: Termination caps may be hot. Consider their proximity to doors or other traffic areas.

Note 5: Location of the vent termination must not interfere with access to the electrical service.

In the U.S and Canada: Vent system termination is NOT permitted in screened porches.

Vent system termination is permitted in porch areas with two or more sides open. You must follow all side walls, overhang and ground clearances as stated in the instructions.

Heatilator assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements.

Figure 6.4 Minimum Clearances for Termination

CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED.

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Heatilator • GDST3831I • 2127-900 Rev. F • 10/08

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Hearth and Home Technologies GDST3831I owner manual Covered Alcove Applications