N550 Bakers Oven | Installation Manual
6 |
P a g e
INSTALLING THE FLOOR PROTECTOR
The stove must be placed on a non-combustible floor protector with an R-value of 2.12 or greater.
For multiple layers, add R-values of each layer to determine the overall R-value. When
manufacturers provide a k-factor or C-factor for the material, you will need to convert these to the
R-value.
The following equations can be used to convert these factors to the R-value:
•
k-factor, is given with a required thickness (T) in inches: R=1/k x T
•
C-factor, is given:
R=1/C EXAMPLE:
If the floor protector is 4” brick with a
C-factor of 1.25, over 1/2
” mineral board with a
“k”
factor of 0.29, the total R-value of the system (R
total
) is:
4” brick C =
1.25,
1/2” mineral board K =
0.29,
R
brick
= 1/1.25
R
mineral
= 1/0.29 x 0.5
= 0.8
= 1.724
R
total
= R
brick
+ R
mineral
,
R
total
= 0.8 + 1.724
= 2.524
In this example, the R-value is greater than 2.12 required and therefore this floor protector
is a suitable combination that provides the required thermal protection.
In the USA, the floor protector must extend
8”
beyond each side of the flue loading door and
16”
to
the front. In Canada, the floor protector must extend
8”
(200mm) beyond each side and the
back of
the appliance and 18” (450mm) to the front. Refer to figure
3.
Figure 3. Non-combustible floor protector requirements
In a rear vent installation, the floor protection must also extend under the stove pipe /
chimney connector and a
minimum of 2” (5
0mm) beyond each side.