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Heat & Glo • SL-550 / 750 / 950TR-D • InD • 2044-985 Rev. M • 10/068
Figure 3.2 Clearances to Combustibles
C
B
D
A
E
H
I
F
FROM TOP
OF HOOD
TO CEILING
G
J
B. Constructing the Appliance Chase
A chase is a vertical boxlike structure built to enclose the
gas appliance and/or its vent system. Vertical vents that run
on the outside of a building may be, but are not required
to be, installed inside a chase.
Construction of the chase may vary with the type of building.
These instructions are not substitutes for the requirements
of local building codes. Local building codes MUST be
checked.
Chases should be constructed in the manner of all outside
walls of the home to prevent cold air drafting problems.
The chase should not break the outside building envelope
in any manner.
Walls, ceiling, base plate and cantilever fl oor of the chase
should be insulated. Vapor and air infi ltration barriers
should be installed in the chase as per regional codes for
the rest of the home. Additionally, in regions where cold
air infi ltration may be an issue, the inside surfaces may be
sheetrocked and taped for maximum air tightness.
To further prevent drafts, the wall shield and ceiling fi restops
should be caulked with high temperature caulk to seal gaps.
C. Clearances
Fire Risk.
• Construct chase to all clearance specifi cations
in manual.
• Locate and install appliance to all clearance
specifi cations in manual
Fire Risk.
Odor Risk.
• Install appliance on hard metal or wood surfaces
extending full width and depth of appliance.
• Do NOT install appliance directly on carpeting,
vinyl, tile or any combustible material other than
wood.
Gas line holes and other openings should be caulked with
high temp caulk or stuffed with unfaced insulation. If the
appliance is being installed on a cement slab, a layer of
plywood may be placed underneath to prevent conducting
cold up into the room.
WARNING
WARNING
Models
ABCDEFGHIJ
DVP Pipe SL Pipe
Rough
Opening
(Height)
DVP Pipe SL Pipe
Rough
Opening
(Width)
Clearance
to Ceiling
Non-
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
Rough
Opening
(Width)
Rough
Opening
(Width)
Rough
Opening
(Depth)
Rough
Opening
(Depth)
SL-550TR-D
in. 10 8-5/8 33 27-1/2 16-1/4 37 31 0 0 1/2 1/2 36
mm 254 219 838 699 413 940 787 0 0 13 13 915
SL-750TR-D
in. 10 8-5/8 38-1/4 27-1/2 16-1/4 42 31 0 0 1/2 1/2 36
mm 254 219 971 699 413 1067 787 0 0 13 13 915
SL-950TR-D
in. 10 8-5/8 42 1/4 27-1/2 16-1/4 49 31 0 0 1/2 1/2 36
mm 254 219 1073 699 413 1245 787 0 0 13 13 914