Filter
Top Products
ALTERNATE FLOOR PROTECTION
All floor protection materials must be non-combustible ie. metal,
brick, stone, mineral fiber boards). Any combustible material
may not be used.
The easiest means of determining if a proposed alternate floor
material meets requirements listed in this manual is to follow this
procedure.
R-value = thermal resistance
k-value = thermal conductivity
C-value = thermal conductance
1. Convert the specification to R-value;
a. If R-value is given, no conversion is
needed.
b. If k-value is given with a required
thickness (T) in inches: R=1/k X T.
c. If C-value is given: R=1/C.
2. Determine the R-value of the proposed alternate
floor protector.
a. Use the formula in Step 1 to convert
values not expressed as R.
b. For multiple layers, add R-values of each
layer to determine overall R-value.
3. If the overall R-value of the sustem is greater
than the R-value of the specified floor protector,
the alternate is acceptable.
EXAMPLE:
The specified floor protector should be 3/4 thick material with a
k-factor of 0.84. The proposed alternate is 4 brick with a C-
factor of 1.25 over
1/8 mineral board witha k-factor of 0.29.
Step A. Use formula above to convert specifications to R-value.
R=1/k X T= 1/.84 X .75 = .893
Step B. Calculate R of proposed system.
4 brick of C-1.25, therefore
R brick = 1/C = 1/1.25 = 0.80.
1/8 mineral board of k = 0.29 therefore
R mineral board = 1/.29 X 0.125 = 0.431
Total R = R brick + R mineral board=
0.8 + 0.431=1.231
Step C. Compare proposed system R = 1.231 to specified R of
0.893. Since R is greater than required, the system is acceptable.
Definitions:
Thermal conductance =
C =
Btu = W
(hr)(ft
2
)(F) (m
2
)(K)
Thermal conductivity =
k =
Btu = W = (Btu)
(hr)(ft
2
)(F) (m
2
)(K) (hr)(ft)(F)
Thermal resistance =
R =
Btu = (m
2
)(K) = (Btu)(inch)
(hr)(ft
2
)(F) W (hr)(ft
2
)(F)
FOR THE JØTUL F 3 CB WOOD STOVE REQUIRES
FLOOR PROTECTION WITH A MINIMUM INSULATING
R VALUE OF 1.1.
ALCOVE INSTALLATION REQUIRE A MINIMUM R VALUE
OF 1.1. (IF A UL/ULC or WHI LISTED HEARTH PAD IS NOT
USED.)
APPENDIX A:
20
F 3 CB PARTS LIST
2 Inner rear heatshield
2B Outer rear heatshield
6 Smoke outlet cover
7 Traverse bar
8 Top plate with smoke cover
11 Baffle plate
12 Air distributor
15 Back plate
22 Side plate
23 Back burn plate
24 Right burn plate
26 Air deflector
28 Sliding air vent
29 Front plate
31 Log retainer
35 Door
37 Hinge pin
40 Start-up air vent
42 Door handle complete
43 Locking bar
45 Glass
46 Sparkscreen
51 Ashlip
52 Leg
55 Bottom plate
57 Inner bottom plate
59 Left burn plate
62 Secondary air cover
64 Flat ash housing gasket
65 Ash housing
70 Ashpan
76 Ashpan door
73 Stove tool
78 Door latch
79 Bottom heatshield
ONLY USE REPLACEMENTS PARTS
PROVIDED THROUGH YOUR
AUTHORIZED JØTUL DEALER.