Vermont Casting 3350 Wall Centerline from Floor, Wall and Ceiling Clearances, Hearth Requirements

Radiance Direct Vent/Natural Vent Gas Heater

Parallel Installation: Minimum Clearance

and Flue Centerline, Direct Vent and Natu-

ral Vent

42" (1070mm)

Min. Alcove Width

4" (102mm)

48"

(1220mm) Max. Alcove Depth

		6"	6"
ST130	(150mm)		(150mm)

Fig. 3 Parallel installation, minimum back and side clear- ances, and flue centerlines.

Corner Installation: Minimum Clearance and Flue Centerline, Direct Vent & Natural Vent

18"

(457mm)

6"

�(150mm)

�

18"

(457mm)

�

�

6"

(150mm)

ST129

Fig. 4 Corner installation, minimum corner clearances and flue centerline.

Wall Centerline from Floor

Direct Vent Only

A

ST131b

A

Effective Minimum

Centerline 57” (1448 mm) (CFM Corporation Pipe) 55” (1399 mm) (Simpson DuraVent Pipe)

Fig. 5 Minimum wall centerline.

Wall and Ceiling Clearances

Direct Vent Only D

B

C

A

A: Rear Wall	4” (102 mm)
B: Min. Clearance	44” (1118 mm)*
C: Min. Alcove Height	72”	(1830 mm)*
D: Max. Alcove Depth	48”	(1220 mm)
Sidewall Clearance	6” (150 mm)

*needed for installing DuraVent Minimum Vent Kit #2792 or

CFM Corporation Minimum Vent Kit #7TFSMSK. ST101b

Fig. 6 Dimensions and clearances to ceiling or alcove.

Hearth Requirements

The Radiance Heaters must be installed on rigid floor- ing. When the heater is installed directly on any com- bustible surface other than wood flooring, a metal or wood panel extending the full width and depth of the unit must be used as the hearth. There are no other hearth requirements.

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