Desa Tech CGF280NT, CGF265NVA installation manual Determining AIR Flow for Fireplace Location

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AIR FOR COMBUSTION AND VENTILATION

Continued

DETERMINING 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 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 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 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: 3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (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

Example: Gas water heater

 

40,000

Btu/Hr

Vent-free fireplace

+

28,000

Btu/Hr

Total

=

 

 

Btu/Hr

68,000

*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: 63,300

Btu/Hr (maximum the space can support)

68,000

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 work sheet, adding the space of an adjoining room. If the extra space pro- vides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air from Inside Building, page 8.

B.Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 8.

C.Install a lower Btu/Hr fireplace, 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.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation Manual CGF265NVA CGF280NTContents Safety Information Information SafetyProduct Identification Product FeaturesLocal Codes UnpackingUnconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining AIR Flow for Fireplace LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallingAssembling Brass Trim Assembling and Attaching Brass TrimMinimum Wall and Ceiling Clearances see Figure Conventional Fireplace InstallationLocation of Nailing Flanges Installing Cabinet Mantel Rough Opening for Installing in Wall BUILT-IN Fireplace InstallationMantel Shelf Mantel Clearances for Built-In InstallationInstallation Items Needed Installing GAS Piping to Fireplace LocationInstallation Items Needed Connecting Fireplace to GAS SupplyAttaching Flexible Gas Lines Together Checking GAS ConnectionsManual Shutoff Valve Pressure Testing Fireplace Gas ConnectionsInstalling Front Log Installing LogsFireplace OperatingOperating Fireplace To Turn OFF GAS to Appliance Manually-Controlled Model Variable Control Operation Pilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern ODS/PILOT and Burners Trouble ShootingLogs TROUBLE- Shooting Cleaning and MainteTrouble Maintenance,Observed Possible Remedy Problem Cause Parts ServiceHints TechnicalIllustrated Parts Breakdown Log Base Assembly Variable Manually Controlled Models Parts ListCFG280NT Log Base Assembly Thermostat Controlled Models CGF265NVA CGF280NT CGF280NT CGF265NVA Accessories 102664 Keep this Warranty Warranty Information

CGF265NVA, CGF280NT specifications

The Desa Tech CGF280NT and CGF265NVA are innovative heating solutions designed for both efficiency and performance. These models combine advanced technology and user-friendly features, making them suitable for various environments, and particularly effective for residential heating needs.

The CGF280NT model is distinguished by its high-efficiency design, which allows it to deliver substantial heat output while minimizing energy consumption. One of its standout features is the Quiet Operation Technology, which significantly reduces the noise level, ensuring that your living space remains peaceful and comfortable even while the heater is in use. Additionally, it has a powerful fan that enhances heat distribution, allowing for a more consistent and comfortable temperature throughout the area.

On the other hand, the CGF265NVA model showcases a sleek, modern aesthetic that complements various interior designs. This unit is equipped with Smart Control Technology, enabling users to adjust settings from a smartphone app. This feature allows easy temperature management while improving energy efficiency. The CGF265NVA is also designed with safety in mind, integrating advanced safety features like overheat protection and an automatic shut-off system to provide peace of mind during operation.

Both models incorporate cutting-edge heat exchanger technology, which maximizes the heat output while ensuring energy savings. They boast a robust construction, with durable materials that stand up to the rigors of daily use. Furthermore, the intuitive controls on both models allow users to easily select between various heating modes, tailoring the performance to suit individual needs.

In terms of installation, both models are designed to be user-friendly, with straightforward setups that do not require extensive modifications to existing spaces. This ease of installation is complemented by their lightweight design, enabling convenient portability.

Ultimately, the Desa Tech CGF280NT and CGF265NVA are prime examples of modern heating solutions that prioritize performance, safety, and user convenience. With their advanced technologies and thoughtful design features, they represent a significant advancement in heating technology, ensuring that users enjoy a comfortable and energy-efficient environment all year round.
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