Vanguard Heating UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATER AIR for Combustion Ventilation

Page 5

OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater plus any adjoining rooms with doorless passageways 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)

Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 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.Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

_______________ (volume of space) ÷ 50 cu. ft. = (maximum Btu/Hr the space can support)

Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

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

Vent-free heater

 

_____________ Btu/Hr

Example:

 

 

 

 

 

Gas water heater*

 

_____________ Btu/Hr

Gas water heater

 

40,000

Btu/Hr

Gas furnace

 

_____________ Btu/Hr

Vent-free heater

+

 

Btu/Hr

 

 

 

39,000

Vented gas heater

 

_____________ Btu/Hr

Total

=

79,000

Btu/Hr

Gas fireplace logs

 

_____________ Btu/Hr

 

 

 

 

 

 

 

Other gas appliances* +

_____________ Btu/Hr

 

 

 

 

 

 

Total

=

_____________ Btu/Hr

 

 

 

 

 

 

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

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 above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin- ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.

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

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

WARNING: If the area in which the heater may be operated 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, ANS Z223.1, 1992, Section 5.3 or applicable local codes.

Continued

105274

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents What to do if YOU Smell GAS OWNER’S Operation and Installation Manual18, 24, 30, and 36 Remote Ready Model Save this manual for future referenceVanguard FLAME-MAX Unvented PROPANE/LP GAS LOG Heater Safety InformationProduct Identification Local Codes Unpacking Product FeaturesRemote Control Accessories Providing Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Ventilation AIRBuilding Ventilation Air From OutdoorsMinimum Fireplace Clearance to Combustible Materials InstallationLOG Sizing Requirements Check GAS TypeMinimum Noncombustible Material Clearances If Using MantelIf Not Using Mantel Mantel Clearances Determining Minimum Mantel Clearance When using a HoodFloor Clearances Determining Minimum Mantel ClearanceChimney Minimum Permanent Height ft Flue Opening sq. ins Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Attaching Flexible Gas Hose to Heater Installation Items NeededExternal regulator not supplied Connecting to GAS SupplyPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures Equal To or Less Than 1/2 PsigPlace lava rock around base of heater Installing LogsLighting Instructions For Your Safety Read Before LightingOperating Heater Optional Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Inspecting Burners OperatingPilot Flame Pattern Burner Primary AIR HolesLogs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Observed Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Top Gas leak. See Warning statement atIllustrated Parts Breakdown VYD18PRA, VYD24PRA VYD30PRA, and VYD36PR Parts ListSpecifications Wiring DiagramReplacement Parts Service HintsAccessories International Warranty Information

UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATER specifications

The Vanguard Heating Unvented (Vent-Free) Propane/LP Gas Log Heater is a remarkable home heating solution that combines efficiency, convenience, and aesthetic appeal. Designed to deliver warmth without the need for traditional venting, this heater stands out for its innovative technology and user-friendly features.

One of the main attractions of the Vanguard unvented gas log heater is its ability to provide consistent heat while conserving energy. The unit operates using propane or LP gas, making it an excellent option for homes without access to natural gas. With a high heat output, it efficiently warms spaces while potentially reducing heating costs compared to conventional systems.

The design of the Vanguard heater incorporates advanced catalyst technology, which ensures that combustion is clean and efficient. This technology minimizes emissions, making it an environmentally friendly choice for homeowners concerned about their carbon footprint. Furthermore, the heater is equipped with an oxygen depletion sensor (ODS) that automatically shuts off the gas supply if oxygen levels fall below safe thresholds, ensuring peace of mind for users.

Aesthetically, the Vanguard model features realistic log designs that replicate the appearance of a traditional wood-burning fireplace. This adds warmth and charm to any living space. The adjustable flame height allows users to customize their heating experience to suit their needs or mood. The controls are designed for ease of use, allowing for simple operation whether the heater is used for primary warmth or supplemental heat.

Safety is a key characteristic of the Vanguard unvented gas log heater. Besides the ODS mentioned earlier, the heater is built with durable materials that ensure longevity and reliability. It can be installed in various locations, including bedrooms and living rooms, as long as the manufacturer's guidelines are followed.

Installation of the Vanguard heater is relatively straightforward, requiring minimal modifications to existing spaces. This flexibility makes it appealing for both new constructions and retrofits. Additionally, the absence of venting means that installation costs are often lower than with vented units.

In summary, the Vanguard Heating Unvented Propane/LP Gas Log Heater combines advanced technology, stylish design, and crucial safety features, making it a viable choice for those seeking efficient indoor heating solutions. Its ease of installation and operation further enhances its attractiveness to modern homeowners. Whether for cozy family gatherings or quiet evenings at home, this heater is an excellent investment in comfort and warmth.
Top Page Image Contents