Novo DV inbuilt installation guide: 13748-C 03-22 |
9
Flooring and hearth material selection
Flooring and hearth material selection
The temperature in front of the fire (200-350 mm x 400 mm wide) can reach up to 40 °C above
ambient, which is why material selection is important, some guidelines are detailed below. For
example we know that vinyl planks are only rated for ambient temperatures which is why the fire
would not be suitable for installation directly on the floor.
A
B
c
D
non-combustible
hearth
Dim.
Non-combustible materials or materials
rated to 60 °C or higher above ambient
Materials rated to a maximum of
50 °C above ambient
Unrated materials, anything up to
20 °C above ambient
A
No maximum.
150 mm maximum
1
100 mm maximum
1
B
No minimum
150 mm minimum
300 mm minimum
C
No minimum
400 mm minimum of non-
combustible material
450 mm minimum of non-
combustible material
D
No restriction
Not suitable for carpets or any heat sensitive materials
1
Refer floating hearth section below
Just because a material is rated >60 °C doesn’t mean it will not deteriorate when exposed to heat
cycles. Always refer to the materials supplier for suitability. The temperatures given are assuming
the fire is operating in a room temperature of no more than 25 °C. Operation in higher ambient
temperatures may result in higher surface temperatures. Non-combustible materials should be
made of a heat resistant material.
Floating hearth - low rated and unrated flooring materials
For unrated flooring materials, if you use a non-combustible floating hearth, the dimensions of the
hearth, minimum depth, and minimum height, can be tweaked using the following calculations:
• Min. hearth depth (A)
= 450
2
-height of hearth (for 50 °C rated materials it will be 400)
• Min. hearth height
= 450
2
-depth of hearth (for 50 °C rated materials it will be 400)
Example
If you wanted a 200 mm deep non-combustible hearth, the calculation for hearth height would be:
450 - hearth depth (A) (450-200 = 250). The non-combustible hearth height would need to be
250 mm minimum.
This would mean the floating hearth dimensions could be 200 mm deep and 250 mm high.
2
Figure obtained from in-house temperature testing
