Laars MFTHW199 - Non-Direct Venting Clearances

LAARS Heating Systems
Page 22
Description US Non-Direct Canadian Non-Direct
A
Clearance above grade, veranda, porch, deck, or balcony 12 in (30 cm) 12 in (30 cm)
B
Clearance to window or door that may be opening
48 in (120 cm) below
or to side of opening;
12 in (30 cm) above
opening
36 in (91 cm)
C
Clearance to permanently closed window * *
D
Vertical clearance to ventilated soft located above the terminal
within a horizontal distance of 2 feet from the center line of the
terminal
* *
E
Clearance to unventilated soft * *
F
Clearance to outside corner * *
G
Clearance to inside corner * *
H
Clearance to each side of center line extended above meter/
regulator assembly
*
36 in (91 cm) within a
height 15 ft (4.57 m)
above the meter/ regu-
lator assembly
I
Clearance to service regulator vent outlet * 36 in (91 cm)
J
Clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other appliance
48 in (120 cm) below
or to side of opening;
12 in (30 cm) above
opening
36 in (91 cm)
K
Clearance to a mechanical air supply inlet
36 in (91 cm) above
if within 10 ft (3 m)
horizontally
6 ft (1.83 m)
L
Clearance above paved sidewalk or paved driveway located on
public property
* 7 ft (2.13 m)
M
Clearance under veranda, porch, deck, or balcony * 12 in (30 cm)
4.6.2Non-DirectVenting(SinglePipe)Clearances
Table5. Non-Direct Vent Clearances