Desa VGL18PRA, VGL24NRA, VGL24PRA AIR for Combustion Ventilation, Providing Adequate Ventilation

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AIR FOR COMBUSTION

AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight con- struction unless provisions are provided for adequate combus- tion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.

Todayʼs homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy effi- cient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.

PROVIDING ADEQUATE

VENTILATION

The following are excerpts from National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three fol- lowing ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 6 through 8 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

Unusually tight construction is defined as construction where:

a.walls and ceilings exposed to the out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with openings gasketed or sealed and

b.weather stripping has been added on openable windows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide additional fresh air. See Ventilation Air From Outdoors, page 8.

If your home does not meet all of the three criteria above, proceed to Determining Fresh-Air Flow For Heater Location.

Confined Space and Unconfined Space The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms com- municating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION

Determining if You Have a Confined or Unconfined Space

Use this work sheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless pas- sageways or ventilation grills between the rooms.

1.Determine the volume of the space (length x width x height).

Length x Width x Height =__________cu. ft. (volume of space)

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Safety Information Product Identification Product FeaturesRemote Control Accessories Local CodesDetermining FRESH-AIR Flow for Fireplace Location AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionAIR for Combustion Ventilatioin Ventilation AIRVentilation Air From Inside Building Installation Ventilation Air From OutdoorsMinimum Firebox Size Check GAS TypeLog Size Side Wall Ceiling LogDetermining Minimum Mantel Clearances When Using a Hood Mantel ClearancesMinimum Noncombustible Material Clearances Minimum Mantel Clearances Without Using Hood Installing Damper Clamp Accessory for Vented Operation Floor ClearancesInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply External Regulator With Vent Pointing DownChecking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Installing Optional Remote Accessories Equipment Shutoff ValveConnecting Wires Installing Logs Log #1For Your Safety Read Before Lighting Operating HeaterLighting Instructions Manual Lighting Procedure To Turn OFF GAS To ApplianceGhrctb Optional HAND-HELD Remote OperationThermostat Series Model ON/OFF Series Model GhrcbPilot Flame Pattern Auto Shutoff FeatureInspecting Burners Main BurnerCleaning Maintenance Burner Injector Holder and Pilot AIR Inlet HoleLogs Troubleshooting Observed Problem Possible Cause RemedySee Cleaning and Mainte Moisture/condensation noticed Gas leak. See Warning Statement aboveService Hints Wiring DiagramReplacement Parts Technical ServiceInformation Video Cleaning KIT CCKReceiver and HAND-HELD Remote Control KIT Ghrcb Series Equipment Shutoff Valve GA5010Illustrated Parts Breakdown Parts List Warranty Information Keep this WarrantyLimited Warranty VENT-FREE GAS LOG Heaters

VGL18PRA, VGL24NRA, VGL30NRA, VGL24PRA specifications

Desa VGL24NRA, VGL18PRA, VGL30NRA, and VGL24PRA are remarkable models of vented gas logs that have set a benchmark in the market for their outstanding performance and aesthetic appeal. Each of these models has been designed with a unique blend of technology and craftsmanship to cater to diverse consumer preferences while ensuring warmth and comfort.

The Desa VGL24NRA is a 24-inch model equipped with a powerful burner system that delivers impressive heat output while ensuring efficient fuel consumption. Its realistic log set, complete with hand-painted finishes, replicates the look of a traditional wood-burning fireplace, enhancing the visual charm of any living space. Adjustable flame height is another feature that grants users control over the ambiance and heat level.

Moving on to the VGL18PRA, this 18-inch vented gas log set is ideal for smaller fireplaces while delivering substantial warmth. The unit features a piezo ignition system for quick and hassle-free startup. Its compact size does not compromise on aesthetic appeal, as it includes beautifully crafted ceramic logs and ember bed, providing a cozy and inviting atmosphere. The VGL18PRA also boasts a safety pilot system to ensure reliable operation and peace of mind.

For larger spaces, the VGL30NRA provides a robust 30-inch log set, designed for extensive heat output. The heavy-duty burner's longevity and efficiency ensure that homeowners can rely on this model throughout the colder months. Like its smaller counterparts, this model features a realistic log design, but its size allows it to produce an even more prominent flame effect, serving as a focal point in any room.

Lastly, the VGL24PRA model offers an excellent balance of size and efficiency. This 24-inch log set enhances both heating and visual comfort, making it an excellent choice for mid-sized living areas. The model is designed with a rugged, yet elegant finish that complements a variety of home decors. Its advanced safety features and easy-to-use controls further enhance its appeal, making it a functional and stylish addition to any fireplace setup.

Overall, all four models—Desa VGL24NRA, VGL18PRA, VGL30NRA, and VGL24PRA—uphold the brand's dedication to quality, comfort, and innovation. Equipped with advanced technologies, these vented gas logs promise not only to keep homes warm but also to elevate the aesthetic value of any space they inhabit. Whether for small or large fireplaces, these models provide versatility and efficiency, making them a worthwhile investment for homeowners looking to enhance their living experience.
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