Desa GAS LOG HEATER AIR for Combustion and Ventilation, Providing Adequate Ventilation

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VANGUARD FLAME-MAX®

UNVENTED NATURAL GAS LOG HEATER

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ven- tilation air. Read the following in- structions to insure proper fresh air for this and other fuel-burning appliances in your home.

Today’s 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 efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper com- bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide ad- equate 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. NFPA 54/ANS Z223.1, Sec- tion 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 4 through 6 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and win- dows 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 de- fined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a con- tinuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with open- ings 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, be- tween sole plates and floors, be- tween wall-ceiling joints, be- tween wall panels, at penetra- tions for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide ad- ditional fresh air. See Ventilation Air From Outdoors, page 6.

If your home does not meet all of the three criteria above, proceed to Deter- mining Fresh-Air Flow For Heater Lo- cation, page 5.

Confined and Unconfined Space

The National Fuel Gas Code (ANS Z223.1, 1992 Section 5.3) 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 communicating directly with the space in which the appliances are in- stalled*, through openings not furnished with doors, are considered a part of the unconfined space.

This heater shall not be installed in a con- fined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air.

*Adjoining rooms are communicating only if there are doorless passageways or ventila- tion grills between them.

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASFLAME-MAX Vintage Oak FLAME-MAX BirchSafety Information Vanguard FLAME-MAX Unvented Natural GAS LOG HeaterProduct Features Product IdentificationLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Check GAS TypeMinimum Wall and Ceiling Clearances see Figure Minimum Fireplace Clearance To Combustible MaterialsIf Not Using Mantel Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Attaching Flexible Gas Hose to Heater Gas RegulatorConnecting to GAS Supply Gas ConnectionPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections For Vintage Oak Log Model Installing LogsFor Golden Oak or Birch Models Operating Heater Lighting InstructionsManual Lighting Procedure Variable Control OperationTo Turn OFF GAS To Appliance Shutting Off HeaterInspecting Burners Thermostat Control OperationPilot Flame Pattern Burner Primary AIR HolesTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Optional Positioning of Thermostat Sensing Bulb For Masonry and FACTORY-BUILT Metal FireplaceSpecifications Cleaning and Maintenance Replacement PartsFLAME-MAX Vintage OAK LOG Models VYS18N and VYS24N Illustrated Parts BreakdownODS Pilot Parts List VYS18N VYS24NODS Pilot VYD18N, VYBD18N VYD24N, VYBD24N VYD30N, VYBD30N VYD36N Thermostatically Controlled Models VYD18NT VYD24NT VYD30NT VYD18NT VYD24NT VYD30NT VYD18NT VYD24NT VYD30NTService Hints AccessoriesTechnical Service 104342 Warranty Information International

GAS LOG HEATER specifications

Desa GAS LOG HEATER is a popular heating solution that brings the warmth and ambiance of a traditional fireplace to modern living spaces. Renowned for its efficiency and aesthetic appeal, this gas log heater is designed to replicate the flickering flames and the cozy feel of a wood-burning fire without the associated hassles.

One of the primary features of the Desa GAS LOG HEATER is its realistic flame effect, which is created using advanced gas log technology. The heater utilizes artificial logs that are crafted to resemble real wood, enhancing the visual appeal and creating a nostalgic atmosphere. The flames are adjustable, allowing users to customize the intensity based on their preferences and heating needs.

Efficiency is a hallmark of the Desa GAS LOG HEATER. Equipped with a high-efficiency heating system, it effectively converts gas to heat, ensuring that energy consumption is kept to a minimum. This results in lower utility bills and a reduced carbon footprint, making it an environmentally friendly option for homeowners. The heater's BTU output can vary, allowing it to accommodate different room sizes and layouts.

The Desa GAS LOG HEATER also features easy ignition systems, which simplify the startup process. Many models come with an automatic ignition option or a push-button start, eliminating the need for matches or lighter. Furthermore, they often include adjustable heat settings, enabling users to control the temperature easily.

Safety is a critical concern with gas heaters, and Desa addresses this with built-in safety features. These may include safety shut-off valves, thermocouple sensors, and automatic shut-off systems that activate in case of malfunction or if the heater tips over. This provides peace of mind for families with children or pets.

Installation of the Desa GAS LOG HEATER is generally straightforward, especially compared to traditional wood-burning fireplaces. Many units can be vented directly through an exterior wall, reducing the need for extensive chimney systems. This versatility allows homeowners to place the heater in various locations, enhancing the overall design of their spaces.

In summary, the Desa GAS LOG HEATER combines style, efficiency, and safety to deliver a reliable heating solution. Its realistic flames and efficient operation make it an attractive choice for anyone seeking to enjoy the charm of a fireplace without the complexities of wood burning. As energy efficiency and environmental consciousness continue to rise, the Desa GAS LOG HEATER stands out as a smart option for modern homes.
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