Gas Specifications
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| Max. | Min. |
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| Input | Input |
Model | Fuel | Gas Control | BTU/h | BTU/h |
RADVT Series | Nat | Millivolt | 38,000 | 25,000 |
RADVT Series | Prop | Millivolt | 36,000 | 25,000 |
RADVTC Series | Nat | Comfort Control | 38,000 | 25,000 |
RADVTC Series | Prop | Comfort Control | 36,000 | 25,000 |
Weight: Fully assembled; 350 lbs.
Gas Inlet and Manifold Pressures
| 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. |
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 2,000 (610 m) for natural gas and 4,500 feet (1,370 m) for LP Gas. 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 2,000 feet (610 m) for natural gas and 4,500 feet (1,370 m) for LP gas above sea level.
In the USA installations with elevations above 2,000 feet (610 m) for natural gas and 4,500 feet (1,370 m) for LP gas 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 2,000 feet (610 m) for natual gas and 4,500 feet (1,370 m) for LP gas.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause in- jury 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.
Radiance Direct Vent Gas Heater
Horizontal Termination
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.
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Fig. 7 Horizontal vent termination window.
20012697 | 7 |