Hearth & Home Technologies Cyclone-BC User Manual

Page of 48
Heat & Glo  •  Cyclone-BN, Cyclone-BC  •  2073-900 Rev. N  •  10/08
8
Fire Risk.
  Construct chase to all clearance specifi cations 
in manual.
  Locate and install appliance to all clearance 
specifi cations in manual.
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 re-
quired to be, installed inside a chase.
Construction of the chase may vary with the type of build-
ing. These instructions are not substitutes for the require-
ments of local building codes. Local building codes MUST 
be checked.
Chases should be constructed  in the manner of all out-
side walls of the home to prevent cold air drafting prob-
lems. 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. 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.
C. Clearances
Figure 3.2  Clearances to Combustibles
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.
WARNING
WARNING
D
A
B
C
MIN BASE
F*
E
G
H
I
CENTER OF
FRAMING HOLE
Clearances to Combustibles
A
B
C D
E
F
G
H
I
Inches 2-1/2 1/2 0
0
50
4
28-5/8 16-3/8 66-1/2
mm
64
13
0
0
1270 102
727
416
1689
(*For clearance when hanging the 
decorative door DF-CYCLONE-BC 
or DF-CYCLONE-BN).
Make provisions for fi nished  fl oor 
thickness.