Desa NATURAL GAS LOG HEATER installation manual Installing, For Vented Operation

Page 11

INSTALLING

Minimum Non Combustible Material Clearances

 

 

 

If Using Mantel

 

 

 

 

 

 

 

 

 

 

 

 

Continued

 

 

 

 

 

 

 

 

 

 

 

 

You must have non combustible material(s) above the fireplace opening. Non

 

 

combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch

 

thick. With sheet metal, you must have non combustible material behind it. Non

 

combustible material must extend at least 8 inches up (for all models). If non

 

combustible material is less than 12", you must install the fireplace hood accessory

 

(24" and 30" models only). Even if non combustible material is more than 12", you

 

may need the hood accessory to deflect heat away from your mantel shelf. See

 

chart below and Figures 6 and 7 for minimum clearances.

 

 

 

 

IMPORTANT: If you cannot meet these minimum clearances, you must operate

 

heater with chimney flue damper open. Go to Installing Damper Clamp Accessory

 

for Vented Operation, page 13.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Non-Combustible

 

Requirements for

 

 

 

 

 

Material Distance (A)

 

Safe Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

12" or more

 

 

 

Non combustible material OK.

 

 

 

Between 8" and 12"

 

24" or 30" Models: Install fireplace hood

 

 

 

 

 

 

 

 

acessory (GA6050 or GA6052, see

 

 

 

 

 

 

 

 

Accessories, page 33).

 

 

 

 

 

 

 

 

 

 

18" Model: Non combustible material OK.

 

 

 

Less than 8"

 

 

 

Non combustible material must be

 

 

 

 

 

 

 

 

extended to at least 8". See Between 8"

 

 

 

 

 

 

 

 

and 12", above. If you cannot extend

 

 

 

 

 

 

 

 

material, you must operate heater with

 

 

 

 

 

 

 

 

flue damper open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mantel Clearances

 

 

 

 

 

 

 

 

 

 

 

 

 

If you meet minimum clearance between mantel shelf and top of fireplace opening,

 

a hood is not required (see Figure 6).

Mantel Shelf

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10"

 

 

 

 

 

 

 

Underside of

 

 

 

 

8"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mantel Shelf

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 1/2"

 

 

 

 

 

 

 

 

All minimum

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

distances are

 

Minimum Non-

 

 

(A)

 

 

 

 

 

 

 

in inches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Combustible

 

 

 

 

 

 

 

 

Log Set

 

 

 

 

 

 

 

 

 

 

 

 

Material

 

 

 

 

 

 

 

 

 

 

 

 

12"

 

 

20"

 

241/2"

271/2"

30"

 

24"/30" Models

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8"

 

 

14"

 

163/4"

181/2"

20"

 

18" Model

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top of Fireplace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Opening

 

 

 

 

Minimum Non-

Distances to

 

 

 

 

 

 

 

Combustible

 

 

Underside of

 

 

 

 

 

 

 

Material Height

Mantel

 

 

 

Figure 6 - Minimum Mantel Clearances Without Using Hood

If above minimum clearances are not met, you must have a hood. Follow

minimum clearances shown in Figure 7 when using hood.

Continued 11

101308

Image 11
Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Information SafetyOperation Local Codes Unpacking Product FeaturesSafety Device Product IdentificationProviding Adequate Ventilation AIR for CombustionVentilation Determining if You Have a Confined or Unconfined Space AIR for Combustion and VentilationDetermining AIR Flow for Heater Location Ventilation AIR AIR forCombustion Check GAS Type InstallingMinimum Wall and Ceiling Clearances see Figure To Combustible MaterialsLOG Sizing Requirements Ances from floor, ceiling, and adjoining wallMinimum Non Combustible Material Clearances Accessories,For Vented Operation, InstallingFloor Clearances Attaching Damper Clamp Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Installing Heater Base AssemblyAttaching Flexible Gas Hose to Heater Gas Regulator Installation Items Needed Connecting to GAS SupplyGas Connection Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig Pressure Testing Heater Gas ConnectionsInstalling Front Log Installing LogsOperating Heater For Your Safety Read Before LightingThermostat-Controlled Models Only OperatingHeater Operating Heater Models Front Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Trouble ShootingODS/PILOT and Burners TROUBLE- Shooting Cleaning and MainteTrouble Gas leak. See Warning Sensing Bulb OptionalPositioning For Masonry Factory-built Metal Fireplace Optional Positioning Thermostat Sensing BulbHints ServiceService TechnicalParts Not Under Warranty Replacement PartsParts Under Warranty Hood GA6052 AccessoriesValve GA5010 Hood GA6050Illustrated Parts Break Down Description QTY Parts ListThermostat Controlled Models Parts List 101308 101308 Keep this Warranty Warranty Information