Hearth and Home Technologies ST-HVB-CE, RCOR-HVB-CE manual Vent Termination Minimum Clearances

G

v

D A

E

v

R

H

M

N

P

Q

(See Note 2)

L		B
			B
	v	v		B
			v
		F v		v
				A

V = VENT TERMINAL X = AIR SUPPLY INLET

91.4 cm			V
			T
I M	V	S	Electrical	S	V
			Service
v	X		D

J or K

V

= AREA WHERE TERMINAL IS NOT PERMITTED

A

=

30.5 cm

clearances above grade, veran-

L

=

2.1 M

clearance above paved side-

(See Note 1)

da, porch, deck or balcony

(See Note 1)

walk or a paved driveway lo-

B

=

30.5 cm

clearances to window or door

cated on public property

M*

=

50.8 cm

clearance under veranda, porch,

that may be opened, or to per-

deck, balcony or overhang

manently closed window.

118.9 cm

vinyl

(Glass)

D

=

50.8 cm

vertical clearance to unventilat-

Alcove Applications

ed soffit or to ventilated soffit lo-

cated above the terminal

N

=

15.3 cm

non-vinyl sidewalls

=

84.8 cm

for vinyl clad soffits and below

30.5 cm

vinyl sidewalls

electrical service

P

=

2.4 M

F

=

..............22.9 cm

clearance to outside corner

QMIN

RMAX

G

=

15.3 cm

clearance to inside corner

1 cap

91.4 cm

2 x Q ACTUAL

H

=

91.4 cm

not to be installed above a gas

2 caps

1.8 M

1 x Q ACTUAL

meter/regulator assembly within

3 caps

2.7 M

2/3 x Q ACTUAL

91.4 cm horizontally from the cen-

______________________________________________________________________

ter-line of the regulator

4 caps

3.7 M

1/2 x Q ACTUAL

I

=

91.4 cm

clearance to gas service regu-

QMIN = # termination caps x 3

RMAX = (2 / # termination caps) x QACTUAL

lator vent outlet

J

=

22.9 cm

clearance to non-mechanical air

S

=

15.3 cm

clearance from sides of

supply inlet to building or the

(See Note 5)

electrical service

combustion air inlet to any other

T

=

30.5 cm

clearance above electrical

appliance

K

=

91.4 cm

clearance to a mechanical (pow-

(See Note 5)

service

ered) air supply inlet

*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 2.1 M 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 an 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 91.4 cm minimum between termination caps. 2. All mechanical air intakes within 3.0 M of a termination cap must be a minimum of 91.4 cm below the termination cap. 3. All gravity air intakes within 91.4 cm of a termination cap must be a minimum of 30.5 cm below the termination cap.

Figure 26 Vent Termination Minimum Clearances

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.

NOTE 6: 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.

NOTE 7: For terminals adjacent to walkways, terminal guards in accordance with BS EN 483:2001 are strongly recommended.

Heat & Glo assumes no responsibility for the improper perfor- mance of the appliance when the venting system does not meet these requirements.

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

Heat & Glo • PIER/ST/L&RCOR-HVB-CE • 2068-900 Rev. H • 6/07 31