K Factors of Alternate Materials:
Material | K | Required Thickness |
Ceroform 126 | .21 | 1/8” |
Limestone | 8.0 | 3.2” |
Concrete | 8.0 | 3.2” |
Sandstone | 13.0 | 5.2” |
Marble | 18.0 | 7.2” |
Hearth extension or floor protector thickness above four (4) inches is generally not acceptable due to cost, floor load capacity, and look. The alternate we recommend is using Ceroform No. 126 millboard 1/8” thick minimum and putting any type decorative brick or stone (any thickness) on top of it.
*The K* factor represents the thermal conductivity of a material and is the time rate of heat flow through a homogeneous material under
direction perpendicular to a surface.
9.The next step is the electrical installation. NOTE: An electrician must wire the ZC20 into the home wiring system using No. 15 AWG (with ground wiring) as minimum in accordance with local wiring codes.
CAUTION: Stove is plugged into cabinet receptacle.
A.Remove brass trim.
B.Remove top panel and right side panel.
C.Now an electrician must do the wiring.
TOP FRONT TRIM PANEL
BRASS TRIM |
RIGHT |
SIDE TRIM |
PANEL |
BLACK |
WHITE
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FIGURE 11 | POWER | |||||||||||
9.Now, finish the wall around the ZC20 using brick, rock, sheetrock, paneling, or any type finishing material. CAUTION: Do not block any openings designed into the unit.
10.Install a mantel above the unit if desired. Note that a combustible mantel must be positioned at least 12” above the top of the ZC20 cabinet.
11.The ZC20 and Model 20 fireplace are now ready for use. Refer to the Model 20 owners manual for operation, safety, and chimney maintenance. Refer to the back of this manual for ZC20 warranty registration information.