Desa CF26NRA Ventilation AIR, Ventilation Air From Inside Building, Ventilation Air From Outdoors

Page 7

AIR FOR COMBUSTION

AND VENTILATION

Continued

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

Ventilation

 

Grills

Or

into Adjoining

Remove

Room,

Door into

Option 1

Adjoining

 

Room,

 

Option 3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

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.

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 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.

12"

Figure 2 - Ventilation Air from Inside Building Shown with Optional Mantel

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12” of the ceiling and one within 12” of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. 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.

IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat- controlled power vent. Heated air entering the attic will activate the power vent.

 

 

Outlet

 

Ventilated

 

 

 

Attic

 

 

Air

 

 

 

 

 

 

 

Outlet

 

 

 

 

 

 

 

 

 

 

 

 

Air

 

 

 

 

 

 

 

 

 

 

To Attic

To

Crawl

Space

Inlet

Air

Inlet Air

 

Ventilated

 

Crawl Space

 

Figure 3 - Ventilation Air from Outdoors

Shown with Optional Mantel

113897-01A

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Unpacking Local CodesRemote Control Accessories Product FeaturesProduct Identification Confined and Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Unusually Tight ConstructionVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationLocating Fireplace Minimum Clearance for Combustible to Wall BUILT-IN Fireplace InstallationAttaching Fireplace to Wall Studs Mantel Clearances for Built-In InstallationTrim shipped with mantel Optional Mantel InstallationRemoving Brick Liner Retainer Assembling TrimRemoving Hood Installing Blower Assembly GA3450TInstalling Blower Bracket Assembly For Built-In Installation Installation Items Needed Connecting to GAS SupplyPropane/LP Connecting Fireplace to GAS SupplyNatural From KPa Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 PsigPressure Testing Heater GAS Connections Installing LogsInstalling 9-Volt Battery in Receiver Installing Wireless Remote Control AccessoryLighting Instructions For Your Safety Read Before LightingSelector Switch Flame Operating FireplaceTo Turn OFF GAS To Appliance Manual Lighting ProcedureOptional HAND-HELD Remote Operation Thermostat Series Model Cghrctb ON/OFF Series Model CghrcbInspecting Burners Cleaning MaintenanceExterior Burner Injector Holder and Pilot AIR Inlet HoleCabinet Air PassagewaysObserved Problem Possible Cause Remedy TroubleshootingSee Cleaning and Mainte On windows Tilation air Gas leak. See Warning Wiring Diagram SpecificationsModels CF26PRA and CF26NRA Illustrated Parts BreakdownParts List 20-1 11-1 20-3 11-2 KEY Part Number Description QTY Parts Central Replacement PartsService Hints Technical ServiceThermostatically Controlled Blower KIT GA3450T Receiver and HAND-HELD Remote Control KIT CghrcbCleaning KIT GCK Equipment Shutoff Valve GA5010Keep this Warranty Warranty InformationLimited Warranty VENT-FREE GAS BAY Front Fireplace

CF26NRA, CF26PRA specifications

Desa CF26PRA and CF26NRA are highly regarded heating appliances designed for efficient and reliable home heating solutions. These units are part of Desa's comprehensive lineup, known for their innovative technology and user-friendly features. Both models are distinct yet share a common commitment to optimizing warmth and comfort in residential spaces.

One of the main features of the CF26PRA and CF26NRA is their impressive heating capacity. These heaters are engineered to deliver significant BTUs, ensuring that even large rooms are heated rapidly and evenly. Both models utilize a forced air distribution system that effectively circulates warmth throughout the living area, eliminating cold spots and providing a consistent, cozy environment.

In terms of design, the CF26PRA and CF26NRA are visually appealing with modern aesthetics that blend seamlessly into various décors. Their compact size allows for flexible placement, whether freestanding or wall-mounted, making them an ideal choice for any room in the home, including living rooms, basements, or even workshops.

Incorporating advanced technologies, these models are equipped with electronic ignition systems, which eliminate the need for manual lighting, ensuring ease of use. Their adjustable thermostat allows homeowners to set the preferred temperature, automatically regulating heat output to maintain comfort while optimizing energy efficiency.

Both the CF26PRA and CF26NRA are constructed with durable materials that enhance their longevity and performance. This robust build is paired with safety features like automatic shut-off and flame failure protection, providing peace of mind for users, particularly in homes with children or pets.

Energy efficiency is another hallmark of these models. They are designed to consume minimal fuel while maximizing output, which helps in reducing monthly heating costs without sacrificing comfort. The CF26NRA, specifically, features an enhanced combustion system, further improving fuel efficiency and lowering emissions.

In conclusion, Desa CF26PRA and CF26NRA are excellent choices for anyone seeking reliable, efficient, and stylish heating solutions. With their user-friendly features, advanced technology, and strong performance characteristics, both models represent a solid investment for maintaining a warm and inviting home during cold weather months. Whether you're upgrading your heating system or looking for a supplemental heater, these models will meet and exceed expectations, keeping every corner of your home comfortably warm.
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