Monessen Hearth BWBC500MHB - Manual (Page 13)

61D0087 13
10' min. Height
Storm
Collar
Bottom of Fireplace
Warm Air Outlet —
Do Not Block!
Galvanized Metal Strip
Glass Door Accessory
Cool Air Inlet — Do not Block!
Round Chimney Cap
Model SC
Flue
Outlet
Height
Roof Flashing Model 612
Top Spacer
Flexible Duct
Type FP-6-U
Nail Down Strap
Combustion
Air Assembly
Model AK6A
Front-to-Back
Framing Dimensions
40 3 /
4
"
Framing
Dimension
40 1 /
2
" - 400 Units
46 1 /
2
" - 500 Units
Framing
Dimension
21 3 /
4
"
Chimney (2" min. Air Space)
to Combustibles —
S12 1' Pipe
S18 18" Pipe
S36 3' Pipe
S48 4' Pipe
Hearth Extension
Firestop Thimble - Model SVTR
(Requires 14 1 /
2
"x14 1 /
2
" Opening)
Zero Clearance to Combustibles
FIREPLACE INSTALLATION
CLEARANCES
(CONTINUED)
Figure 12 - Proper Clearances and Chimney Height
• You must use Model SVTR Thimble
• It is recommended for safety and
reducing heat loss that firestopping
be used at the ceiling level for chase
installation even if local codes do not
require firestopping.
• Do not insulate chase with blown or fill
type insulation. Only allow insulation
to come into contact with fireplace at
points where fireplace would normally
be contacted by framing materials.
• Combustible materials must not be
installed below top spacers.
• Non-combustible materials must not
cover warm air outlet and/or cool air
inlet.
WARNING