Lennox International Inc. WINSLOW PS40 - Manual (Page 8)

8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
HEARTH PROTECTION
VENT TERMINATION REQUIREMENTS
This appliance requires noncombustible floor protection (the hearth pad
or alternate floor protection material does not require a thermal rating).
A noncombustible floor protector must fully cover the area beneath the
appliance as illustrated in Figure 9.
If the floor protection is to be stone, tile, brick, etc., it must be mortared
or grouted to form a continuous noncombustible surface. In Canada, if a
chimney connector / venting extends horizontally over the floor, protection
must also cover the floor under the connector / venting and at least 2”
(51 mm) to either side (recommended but not required in the US).
Minimum Size Hearth Protection
1. Do not terminate the vent in any enclosed or semi-enclosed areas
such as a carport, garage, attic, crawlspace, narrow walkway, closely
fenced area, under a sundeck or porch, or any location that can build
up a concentration of fumes such as stairwells, covered breezeway,
etc.
2. Vent surfaces can become hot enough to cause burns if touched.
Non-combustible shielding or guards may be required.
3. Termination must exhaust above the inlet elevation. It is recommended
that at least five feet of vertical pipe be installed outside when the
stove is vented directly through a wall. This will create a natural draft
to prevent the possibility of smoke or odor during appliance shut
down or power failure and avoid exposing people or shrubs to high
temperatures.
4. The vent should terminate no less than four feet below, no less than
four feet horizontally from and no less than one foot above doors and
windows, or gravity/ventilation air inlets into the building.
5. The distance from the bottom of termination to grade is 12” (305 mm)
minimum unless otherwise specified by the vent manufacturer. The
distance between the bottom of the termination and a public walkway
should be a minimum of seven feet.
6. Locate the vent termination at least two feet away from combustible
materials such as shrubs, plants, grass, fences, roof overhangs and
adjacent buildings.
Stove Base
Firebox Front Edge
Hearth Protection
Outline of Stove Base
3-7/8”
(98mm)
6”
(152mm)
6”
(152mm)
6”
(152mm)
3-7/8”
(98mm)
9-5/8”
(245mm)
14-1/4”
(362mm)
9-5/8”
(245mm)
10-3/4”
(273mm)
8-7/8”
(225mm)
8-7/8”
(213mm)
7-9/16”
(192mm)
18-3/8”
(467mm)
7-9/16”
(192mm)
33-1/2”
(851mm)
28”
(711mm)
Figure 9
Figure 10
Alcove Installations
Minimum alcove height is 41” (1041 mm), minimum width is 42-1/4” (1073
mm) and maximum depth is 48” (1219 mm). Note, it is quite difficult to
load pellets into the hopper when installed in an alcove only 41” (1041
mm) high. For alcove wall clearances see parallel clearances below.
48”
(1219mm)
Figure 8
41”
(1041mm)
42-1/4”
(1073mm)