Noritz N-132M Manuel D'installation page 43

Clearance Requirements from Vent Terminations to Building Openings
* All clearance requirements are in accordance with ANSI Z21.10.3a-2003 and the National Fuel Gas
Code, ANSI Z223.1.
Above grade, veranda, porch, deck,
A=
or balcony
Window or door that may be opened
B=
Permanently closed window
C=
Vertical clearance to ventilated soffit
located above the terminal within a
D=
horizontal distance of 2 feet from the
center of the terminal
Unventilated soffit
E=
F= Outside corner
G= Inside corner
Each side of center line extended
H=
above meter/regulator assembly
Service regulator vent outlet
I=
Nonmechanical air supply inlet or
J= combustion air inlet to any other
appliance
Mechanical air supply inlet
K=
Above paved sidewalk or paved
L=
driveway located on public property
Under veranda, porch, deck, or
M=
balcony
()= indicates clearances required in Canada
*Maintain clearances in accordance with local installation codes and the requirements of the gas supplier
***A vent shall not terminate directly above a sidewalk or paved driveway that is located between two
single family dwellings and serves both dwellings.
****Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor.
Clearance
Vent Terminal
Air Supply Inlet
Indoor Installation
(See p.44)
12" (12")
4' below or to the side of
opening, or 1' above opening
(36")
*
*
*
*
*
3' within a height 15' above
meter/regulator assembly
3'
4' below or to the side of
opening, or 1' above opening
(36")
3' above if within 10' (6')
(7' ***)
* (12"- Canada Only****)
Area Where Terminal
is Not Permitted
Outdoor Installation
(See p.44)
12" (12")
12" (36")
*
*
*
*
*
3' within a height 15' above
meter/regulator assembly
3'
12" (36")
3' above if within 10' (6')
(7' ***)
* (12"- Canada Only****)
43