Operating instructions
3
UVL Series
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.
Min. Fireplace Dimensions
AB 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” UVL18RN
20¹⁄₂” 17” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
17,000 24,000
18” UVL18MN 15,000 24,000
24” UVL24RN
Natural 20¹⁄₂”18¹⁄₂”13¹⁄₂” 18” 5.5” 14.0” 3.5”
24,500 35,000
24” UVL24MN 18,000 35,000
30” UVL30RN
25¹⁄₂” 23” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
25,000 39,000
30” UVL30MN 28,500 39,000
18” UVL18RP
20¹⁄₂” 17” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 18,000 24,000
18” UVL18MP 10.0” 17,000 24,000
24” UVL24RP
Propane 20¹⁄₂”18¹⁄₂”13¹⁄₂” 18” 11.0” 14.0”
11.0” 26,000 35,000
24” UVL24MP 10.0” 18,000 35,000
30” UVL30RP
25¹⁄₂” 23” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 29,500 39,000
30” UVL30MP 10.0” 29,000 39,000
Pressure Test Points
UVL-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.
UVL-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 nature of a vent free combustion
system, however, is such that odors may
Inlet Supply
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
cobwebs 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)
occasionally be produced during heater operation
when impurities 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.










