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exist in the immediate area. Cleaning solutions, paint,
solvents, cigarette smoke, candles, adhesives, new
carpet or textiles, etc., all can create fumes. These
fumes may mix with combustion air and can create
odor. Such odors will disappear over time, however,
the condition can be alleviated by opening a window
or otherwise providing additional ventilation to the
area.
Installation Requirements
The fireplace must meet the minimum dimensions listed below. (Fig. 1) Do not install the logset if the fireplace does
not meet these minimums.
Pressure Test Points
UVLX-R Series: The gas control is equipped with a
captured screw-type pressure test point, therefore it is
not necessary to provide a 1/8” test point upstream of
the control.
UVLX-M Series: The gas valve control is equipped with
a captured screw type inlet and manifold pressure test
point on the right side of the valve.
Odor During Operation
Neither natural gas nor propane gas give off an odor
when burned. The nat ure of a vent free combustion
system, however, is such that odors may occasionally
be produced during heater operation when impurities
Min. Fireplace Dimensions
A B C D
Logset Gas Front Rear Overall Overall Pressure (w.c.) Manifold Min. Input Max. Input
Width Width Depth Height Min. Max. Pressure BTU/hr BTU/hr
18” UVLX18RN
20¹⁄₂” 17” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
17,000 24,000
18” UVLX18MN 15,000 24,000
24” UVLX24RN
Natural 25¹⁄₂” 18¹⁄₂” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
24,500 35,000
24” UVLX24MN 18,000 35,000
30” UVLX30RN
25¹⁄₂” 23” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
25,000 39,000
30” UVLX30MN 28,500 39,000
18” UVLX18RP
20¹⁄₂” 17” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 18,000 24,000
18” UVLX18MP 10.0” 17,000 24,000
24” UVLX24RP
Propane 25¹⁄₂” 18¹⁄₂” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 26,000 35,000
24” UVLX24MP 10.0” 18,000 35,000
30” UVLX30RP
25¹⁄₂” 23” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 29,500 39,000
30” UVLX30MP 10.0” 29,000 39,000
Inlet Supply
FD370-2
Fireplace
dimensions/vl18
3/25/99
A
B
D
C
A. Front Width B. Rear Width
C. Depth D. Height
FD370-2
Fig. 1 Minimum fireplace dimensions.
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration from elevations up to
4,500 feet (1,370m) above sea level.
Nuisance outages may occur at altitudes above
4,500 feet (1,370m) if dirt, dust, lint and/or cob-
webs are allowed to accumulate on burner and/or
ODS pilot. Monthly inspection and cleaning is
recommended for altitudes above 4,500 feet
(1,370m)
For elevations above 4,500 feet (1,370m) in USA,
installations must be in accordance with the
current ANSI Z223.1/NFPA 54 and/or local codes
having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m)