Element4 Lucius 140 RD MKII Installation, Operation And Owner's Manual page 33

The finished wall(s) must be at least 1/2"/12
the thickness of the approved wall products.
Your choice of wall material depends largely on the intended finish. For example, a thinner wall product and a layer of stone may be
thick enough to reach the trim edge. If a painted finish is desired then a wall at least 1/2"/12
Product
Skamol Skamotec® 225 Fireplace Building Board
Promat PROMAFOUR® System
James Hardie Building Products HardieBacker® 500 1/2" Cement Board 1/2"/12
James Hardie Building Products HardieBacker® 1/4" Cement Board
Element4 Gas Fireplaces
ENCLOSING the FIREPLACE
thick or the fireplace trim will extend beyond the finished wall. The list below shows
mm
Minimum Wall Thickness =
1/2"/12
Thickness
11/2"/38
1/2"/12
mm,
mm
1/4"/6
mm
Fireplace Trim
mm
33
thick will suffice.
mm
mm
5/8"/15 3/4"/18
mm, mm
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