Weiman Products Deva 100 User Manual
Page 10
 
HearthStone Quality Home Heating Products Inc ®
Model 8220
10
H
EARTH
R
EQUIREMENTS
A
ND
F
LOOR
P
ROTECTION
Install your stove on the following: 
 
A non-combustible floor protector that you 
obtain from your dealer, or any other 
noncombustible material. A floor protector 
is any noncombustible surface laid on the 
floor underneath the stove that extends, 16 
inches -US (or 46 cm in Canada)
beyond the
fuel loading door and 8 inches (20 cm) 
beyond each side of the cook stove. (See 
Figure 1) The hearth protection for your 
Deva 100 must have an R-value of at least 
0.89 or be a UL Listed floor protection. 
 
An example of a non-combustible floor 
protector would be a hearth constructed with a 
continuous layer of a listed backer board (such 
as Wonder-Board or Durock) used for ember 
protection with a tile, brick, slate, or another 
noon-combustible facing. 
 
For horizontal chimney connector installations, 
the floor protection must be installed beneath 
the connector and 2” beyond each side. 
 
Floor protector’s come with various types of 
specifications. To convert a floor protector’s 
specification to an R-value, do one of the 
following: 
• If the R-value is given, use that value—
no conversion is needed.
• If a K-factor is given with a required
thickness (T) in inches, use this formula: 
R-value = 1/K x T 
• If a C-factor is given, use the formula:
R-value = 1/C
To determine the R-value of the proposed 
alternate floor protector: 
• Use either the K-factor or the C-factor
formula explained above to convert 
specifications not expressed as R-values. 
• For multiple layers of floor protectors,
simply add the R-values of each layer to
determine the overall R-value of the 
layers. 
If the overall R-value of your setup is greater 
than the R-value of the specified floor protector, 
then your setup is acceptable. 
 
18 (CAN)"
16 (US)
56"
23-3/4
41-3/4(CAN)"
39-3/4(US)
If venting the unit using the rear exit, floor 
protection must extend 2" on either side of pipe.
8
Figure 1. Hearth Protection for top vent installations
 
 
 
 
 
 
C
LEARANCES
T
O
C
OMBUSTIBLES
Please use this section to plan the layout 
for your stove. Consider clearance of pipe 
to combustibles and cookstove to 
combustibles. 
You must follow minimum clearances for the 
Deva 100 cookstove to combustibles such as 
walls and ceilings. You may reduce the general 
clearances if installing the stove near Protected 
Surfaces.