12
ALT5 LE Insert 230819-32
100003038
26
”
660mm
22
1/2
”
570mm
18
3/8
”
465mm
21
”
535mm
8
”
200mm
16
”
406mm
Fireplace Hearth
Figure 3: Fireplace opening dim. - ALT5 Insert LE.
Minimum Fireplace and Hearth Dimensions
Hearth Requirements:
The fireplace's non-combustible masonry hearth must extend 16” in front and 8” beyond each side of the
existing fireplace opening. See Figure 3.