7
Figure 3.3.1
3.4 Floor Protector Requirements
The Waimakariri ULEB can be installed on any non-combustible ash floor protector with minimum dimensions
given on page 4 if this manual. Please note that the dimensions given are minimum, and we recommend using a
slightly larger floor protector size.
Please note that the Waimakariri ULEB is heavy, having a total weight of 155 Kg. The floor and the materials
used as floor protector should be strong enough to bear this load. The minimum requirements for material to be
used as floor protectors on a combustible material are
-
6mm fiber cement board (e.g., Hardies Tile & Slate Underlay) plus 8mm ceramic tiles on a firm base.
-
4mm mild steel floor protector supplied by Glen Dimplex
-
Or equivalent.
3.5 Reducing Clearances
The clearances to combustible specified in section 2.0 of this manual, can be safely reduced by following
guidelines specified in AS/NZS 2918:2001 table 3.1 & 3.2.
-
Heatshield should be made of non-combustible material like metal or masonry.
-
Installed between the burner and the combustible wall
-
With an air gap behind it and vented top and bottom
-
The shield should extend a minimum of 450mm beyond the top of the appliance and extend width-wise so
that unshielded rear clearance is maintained
Clearance factors for heat shield which is within 45 degrees of the vertical
Heat Shield Construction
Minimum Air Gap Dimension
Clearance Factor
Single-layer of continuous material
12mm
0.4
Single-layer of continuous material
25mm
0.3
Two spaced layers of continuous material
12mm+12mm
0.2
Clearance factors for heat shield which is more than 45 degrees off the vertical
Heat Shield Construction
Minimum Air Gap Dimension
Clearance Factor
Single-layer of continuous material
12mm
0.8
Single-layer of continuous material
25mm
0.6
