29
Chase Area Minimum
To ensure the convective heat within the chase passively moves to the heat release at an optimal rate, all parts of the interior of the
chase must at least the same size as the fireplace heat release (see “Heat Release” section to determine your model’s required heat
release size) at size at any given point. To determine if your chase meets this requirement, use the following equation at the narrowest
part of the chase.
Chase Area = (Chase Length x Chase Depth) – (Area of the Pipe)
Area of the Pipe:
4”x6” venting = 28.27 in
2
5”x8” venting = 50.27 in
2
3”x5” venting* = 19.63 in
2
*Used for Power Venting only
Fireplace Chase (Top View)
If the heat release is split into 25/75 portions due to an oversized ledge, the
chase only needs to be the size of 75% of the heat release because 25% of the
heat is already being released at the ledge (see “Ledge Detail” section below
for details).
Recessed Ledge Detail
A ledge over the top of a fireplace that is less than 24 inches (48 inches for Traditional series) from the top of the fireplace
viewing area must maintain a minimum of
12 inches from the top of the viewing area to the bottom of the building material
.
Entire structure must be non-combustible (framing and finish).
If ledge surface area exceeds the values shown in the chart below, the heat release must be divided between the ledge and
the chase ceiling: 25% at the ledge and 75% at the chase ceiling. This is referred to as an oversized ledge (see diagram below).
Fireplace Series
Maximum Ledge
Surface Area
75*
A x B ≤ 220 sq. in.
90-130**
A x B ≤ 340 sq. in.
150-170
A x B ≤ 410 sq. in.
200
A x B ≤ 520 sq. in.
250
A x B ≤ 580 sq. in.
*Includes 75x65 Curve/Curve TN
**Includes Island
A = ledge depth, B= ledge width (Top View)
Oversized Ledge
Oversized Recessed Ledge Detail
NOTES:
Chase area minimum requirements must
be met throughout the entire fireplace
chase. See “Chase Area Minimum”
section above for details.
A Space Creator is shown in the diagrams
in this section for illustration purposes
only. These requirements apply to
all
models
in this installation manual.
Summary of Contents for Clear 130 LS
Page 53: ...53 Wiring Diagram Screen Fireplace with Interior Lighting...
Page 54: ...54 Wiring Diagram Screen Fireplace with Interior Lighting and Ortal Power Vent...
Page 55: ...55 Wiring Diagram Double Glass Fireplace...
Page 56: ...56 Wiring Diagram Double Glass Fireplace with Interior Lighting...
Page 57: ...57 Wiring Diagram Double Glass Fireplace with Interior Lighting and Ortal Power Vent...
Page 58: ...58 Carbon Monoxide Detector Wiring Diagrams CO Kit Wiring Diagram Screen Fireplace...
Page 59: ...59 CO Kit Wiring Diagram Double Glass Fireplace...