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6
Shrouds
WARNING! Risk of Fire! Shrouds must be constructed
as specified. Improper construction may overheat
chase top.
Shrouds may be field constructed where permitted by
regional building codes.
NOTICE: Some regional codes require an agency-Listed
shroud. Consult your local building officials.
The shrouds must be constructed from minimum .018
in. (26 ga) thick aluminized steel.
Some shrouds require a radiation shield. Use where
specified.
A. Radiation Shield
Radiation shield must be constructed of minimum 26 ga
thick sheet metal.
Ø 17 1/2 in. (444.5 mm) Round Hole to fit over cap
Length x Width to fit inside shroud
Figure 6.1 Radiation Shield
B. Field Constructed Shrouds
The following field constructed shroud designs have
been tested for HHT fireplace systems and termination
caps.
Heat & Glo • Rutherford 42-B Installation Manual • 4059-712 • Rev O • 09/28/15
3 in. (76 mm) tall legs
1. Open Top Shroud
TR11/TR11T TV (top vent) caps do not require radiation
shield.
14 1/2 in. (368 mm)
maximum height
3 in (76 mm)
minimum
Min. Opening
Base Dim.
TR11/11T
Min. Base Dims.
in
32 x 32
813 x 813
mm
Radiation Shield
Required
Min. Top Dims.
in
29 x 29
mm
737 x 737
Min. Opening Width
in
26 x 26
mm
660 x 660
Figure 6.2
Open Top Shroud Dimensions
TR11/TR11T caps require radiation shield unless in-
stalled partially above the shroud. The TR cap must be
raised to the minimum dimensions (or greater) above the
shroud. Refer to Figure 6.3.
(TR Series)
Maximum Height
14 1/2 in. (368 mm)
Shroud
Leg
Figure 6.3
Shroud & TR Series cap with no Radiation Shield
Min.
Top Dim.
Min.
Top Dim.
Min.
Width
Base Dim.
Min.
TR11/11T TV
26 x 26
660 x 660
Radiation
Shield Not
Required
23 x 23
584 x 584
20 x 20
508 x 508
6" Min.
Above the
Shroud.
Storm
(SHROUD)
Collar
Shroud
Leg
Flue
3 in (76 mm)
air space from
bottom of shroud
Chase Top
to top of chase.
Radiation
Shield
Min. Opening
Width
25
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