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6
Shrouds
WARNING! Risk of Fire!
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), centered round hole to fit over cap
*Ensure the shield
does not sag.
Length x Width to fit inside shroud. Gap not
to exceed 1/2" of shroud base dimension.
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.
Majestic Sovereign Series • SA36R/SA42R • Installers Manual • 4010-259 • Rev K • 1/22
Shrouds must be constructed
3 in. (76 mm) tall legs
1. Open Top Shroud
(TR342/344 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.
TS345
23 x 23
in
mm
584 x 584
20 x 20
in
mm
508 x 508
17 x 17
in
mm
432 x 432
TR342/344 caps require radiation shield unless installed
partially above the shroud. The TR cap must be raised to
the minimum dimensions (or greater) above the shroud
or install a TR-TVK. Refer to Figure 6.3.
(TR Series)
Maximum Height
14 1/2 in. (368 mm)
Shroud
Flue
Leg
Figure 6.3
Shroud & TR Series cap with no Radiation Shield
Min.
Top Dim.
Min.
Top Dim.
Min.
Width
Base Dim.
Min.
TR344
TR342B/TR344
TR342B
with TR-TVK
Min. Base Dims.
28 x 28
26 x 26
711 x 711
660 x 660
Radiation
Radiation Shield
Shield Not
Required
Required
Min. Top Dims.
25 x 25
23 x 23
635 x 635
584 x 584
Min. Opening Width
22 x 22
20 x 20
559 x 559
508 x 508
6" Min.
Above the
Shroud.
Storm
(SHROUD)
Collar
Shroud
Leg
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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