Specifications

MONITOR HEATING SYSTEMS
Section 2: Installation
FLUE PIPE CLEARANCES
The vent terminal of a direct vent appliance with an input of 50,000 Btu per hour or less shall be located at least
9 inches from any opening through which flue gases could enter a building.
Flue pipe installations should provide for venting to an unconfined space through which there is a free flow of
outdoor air. Clearances to adjacent walls or obstacles must comply with the requirements shown below.
Frontal Clearance Combustible iiiiniiiiminimiiinintiiniiniiii
12" (30cm)
A CAUTION: or more
Do not attach anything onto the
outlet of the flue pipe.
J13.5cm)
Wall -
Clamp
-f-Wall
Any construction
3" above Flue Pipe
(7.5 must not come
cm) within 24'(60cm)
or of front obstacle
-24'(60cm)
or more
i-—Flue Pipe
~T~
8T(20cm)
or more
more
I Front Obstacle
Ground or slab surface
Overhead Clearance
Combustible
Non-combustible
Ground or slab surface
Side Clearance
Wall
Clamp
Heater-
Side obstacle
T
18" (45cm)
or more
Flue Pipe
-Wall
IMPORTANT:
Figure 2-8
(1) In areas of heavy snow falls, ground surface (2) In open area with strong wind, a wind break
clearance must be increased according to average may be necessary,
snow falls, to prevent flue pipe from being buried.
Long
Extension
kit
u»-
=»
24"min .
(60cm)
Figure 2-9
17