User's Manual

5
Vermont Castings Jefferson Vent Free Gas Heater
20003447
Clearance Requirements
Minimum Clearances to
Combustible Materials
Maintain clearance, (empty space), between combus-
tible materials and the heater as specified below for
the appropriate firebox shell being installed.
Wall
FP599a
S
T
U
V
W
X
Y
A
B
C
D
E
F
G
Mantel Mantel from
Ref. Shelf Depth Ref. Stove Top
A 12” (305mm) S 12” (305mm)
B 10” (254mm) T 10” 254mm)
C 8” (203mm) U 8” (203mm0
D 6” (152mm) V 6” (152mm)
E 4” (102mm) W 4” (102mm)
F 2” (51mm) X 2” (51mm)
G 1” (25mm) Y 1” (25mm)
Hearth Requirements
The JUVS must be installed on rigid flooring. If the
appliance is installed on any combustible surface other
than wood flooring, such as carpet or tile, a metal or
wood panel must be installed to extend the full length
and width of the unit.
WARNING
• Do not install this heater in a bathroom or
bedroom.
• Installation of this heater must conform with
Local Codes or in the absence of Local
Codes, with the National Fuel Gas Code,
ANSI Z223.1.
• This heater creates warm air currents. These
currents move heat to wall surfaces next to
the heater. Installing the heater next to vinyl
or cloth wall coverings or operating the
heater where impurities in the air such as
tobacco smoke exist, may discolor walls.
• Do not use a blower insert, heat exchanger
insert or other accessory not approved with
this heater.
A: Ceiling .................................................. 27¹⁄₂” (699mm)
B: Side Wall ................................................... 4” (102mm)
C: Rear Wall .................................................. 4” (102mm)
D: Max. Alcove Depth ................................ 48” (1219mm)
B
A
C
D
ST101
A: Mantel Trim .................................12” (305mm)
B: Side Wall/Trim ..............................4” (102mm)
C: Rear Wall......................................4” (102mm)
D: Max. Mantel Depth .....................12” (305mm)
Alcove Clearances
ST103
B
C
D
B
A
Fig. 2 Minimum wall clearances