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Radiance Direct Vent /Natural Vent Gas Heater
20004188
Radiance Direct Vent/Natural Vent
Certified to:
ANSI Z21.88-2005 / CSA 2.33-2005
Vented Gas Fireplace Heaters
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
RDVODRN Nat Millivolt 35,000 25,000
RDVODRP Prop Millivolt 35,000 27,500
RDVODRFN Nat Comfort Control 35,000 25,000
RDVODRFP Prop Comfort Control 35,000 27,500
Weight: Fully assembled; 350 lbs.
Natural LP (Propane)
Inlet Minimum 5.5” w.c. 11.0” w.c.
Inlet Maximum 14.0” w.c. 14.0” w.c.
Manifold Pressure 3.5” w.c. 10” w.c.
Gas Inlet and Manifold Pressures
The installation of your Vermont Castings stove
must conform with local codes, or in the absence of
local codes, with the National Fuel Gas Code ANSI
Z223.1/NFPA 54 - latest edition, or CSA B149.1
Installation code. (EXCEPTION: Do not derate this
appliance for altitude up to 4,500 feet (1,370m).
Maintain the manifold pressure at 3.5” w.c. for Natural
Gas and 10.0” w.c. for LP Gas.
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370m) above sea level.
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).
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance
can cause injury or property damage. Refer
to this manual for correct installation and
operational procedures. For assistance or
additional information consult a qualified
installer, service agency, or the gas supplier.
Horizontal Termination -
Direct Vent ONLY
The vent must rise vertically a minimum of 24” (610mm)
off the top of the unit, before the first elbow. The hori-
zontal run may extend up to 20’ (6m) and include a
vertical rise of up to 40’ (12m). (Fig. 7) Horizontal termi-
nation must also meet the criteria shown in Figures 10
through 12.
• Approved vent systems must terminate above and
including the heavy line in Figure 7.
• Two 45˚ elbows may be substituted for each single
90˚ elbow.
• With a rise between 2’ - 5’, one 90˚ or two 45˚ elbows
may be used.
Vertical Run (in feet)
(Measured from the appliance flue collar to the top of the vent pipe.)
Horizontal Run (in feet)
ST134a
FDV28
Horizontal
vent run
12/3/99 djt
areas modified
1/11/00 djt
ST134a
Fig. 7 Horizontal vent termination window.
May use up to
three 90° Elbows
One 90°
Elbow
Unacceptable
Venting Configuration