Desa VGL30NRA, VGL24NRA, VGL24PRA, VGL18PRA AIR for Combustion Ventilatioin, Ventilation AIR

Page 7

AIR FOR COMBUSTION

AND VENTILATIOIN

Continued

Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2,560 cu. ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support.

__________ (volume of space) x 20 = (Maxi- mum Btu/Hr the space can support)

Example: 2,560 cu. ft. (volume of space) x 20 = 51,200 (maximum Btu/Hr the space can support)

3.Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free fireplace

__________ Btu/Hr

Gas water heater*

__________ Btu/Hr

Gas furnace

__________ Btu/Hr

Vented gas heater

__________ Btu/Hr

Gas fireplace logs

__________ Btu/Hr

Other gas appliances*

+ ________ Btu/Hr

Total

= ________ Btu/Hr

*Do not include direct-vent gas appliances. Di- rect-vent draws combustion air from the outdoors and vents to the outdoors.

Example:

40,000

Gas water heater

__________ Btu/Hr

Vent-free fireplace

39,000

+ ________ Btu/Hr

Total

79,000

= ________ Btu/Hr

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an un- confined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the heater may be oper- ated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA54 Section 5.3 or applicable local codes.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

_________ Btu/Hr (maximum the space can support)

_________ Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space can support)

79,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the example is a confined space because the actual Btu/Hr used is more than the maximum

Ventilation

Grills

 

Into Adjoining

Or

Room,

Remove

Option 1

Door into

 

 

Adjoining

 

Room,

 

Option

 

3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

Btu/Hr the space can support. You must provide ad- ditional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoin- ing room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building.

B.Vent room directly to the outdoors. See Ventila- tion Air From Outdoors, page 8.

C.Install a lower Btu/Hr fireplace, if lower Btu/Hr size makes room unconfined.

12"

Figure 2 - Ventilation Air from Inside

Building

112882-01B

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Safety Information Local Codes Product FeaturesRemote Control Accessories Product IdentificationUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Determining FRESH-AIR Flow for Fireplace LocationVentilation AIR AIR for Combustion VentilatioinVentilation Air From Inside Building Ventilation Air From Outdoors InstallationLog Check GAS TypeLog Size Side Wall Ceiling Minimum Firebox SizeMantel Clearances Determining Minimum Mantel Clearances When Using a HoodMinimum Noncombustible Material Clearances Minimum Mantel Clearances Without Using Hood Floor Clearances Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Installing Heater Base AssemblyExternal Regulator With Vent Pointing Down Connecting to GAS SupplyTest Pressures In Excess Of 1/2 Psig 3.5 kPa Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Equipment Shutoff Valve Installing Optional Remote AccessoriesConnecting Wires Log #1 Installing LogsOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureON/OFF Series Model Ghrcb Optional HAND-HELD Remote OperationThermostat Series Model GhrctbMain Burner Auto Shutoff FeatureInspecting Burners Pilot Flame PatternBurner Injector Holder and Pilot AIR Inlet Hole Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingSee Cleaning and Mainte Moisture/condensation noticed Statement above Gas leak. See WarningTechnical Service Wiring DiagramReplacement Parts Service HintsEquipment Shutoff Valve GA5010 Cleaning KIT CCKReceiver and HAND-HELD Remote Control KIT Ghrcb Series Information VideoIllustrated Parts Breakdown Parts List Keep this Warranty Warranty InformationLimited 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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