81
4”
8”
LDK 1 & 4
LDK 3
Framing
“on edge”
1-1/2” min. clearance
to combustibles (top)
2” min. clearance
to combustibles
(use steel stud for
LX2 appliances)
2” min. clearance
to combustibles
(use steel stud for
LX2 appliances)
Ceiling
Min. 2-1/2” clearance to ceiling
1/2”
5”
1/2” min.
clearance to
combustibles
rear & sides
1” min.
clearance to
combustibles
all around pipes
2 x 4 on edge
to support
plenum.
Maintain 1”
clearance
to pipes
Framing
“on edge”
1-1/2” min. clearance
to combustibles (top)
Ceiling
Min. 2-1/2” clearance to ceiling
1/2”
1/2” min.
clearance to
combustibles
rear & sides
1” min.
clearance to
combustibles
all around pipes
Framing and Clearances
Appendix D - HeatShift
®
Installation