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119421-01E

8

INSTALLATION

 WARNING: Never install the 

heater

•  in  a  bedroom  or  bathroom 

unless  installed  as  a  vented 

appliance (see page 11)

•  in a recreational vehicle

•  where  curtains,  furniture, 

clothing  or  other  flammable 

objects are less than 42" from 

the front, top or sides of the 

heater

•  in high traffic areas

•  in windy or drafty areas

 CAUTION: This heater cre-

ates  warm  air  currents.  These 

currents move heat to wall sur-

faces  next  to  heater.  Installing 

heater next to vinyl or cloth wall 

coverings  or  operating  heater 

where impurities (such as, but 

not limited to, tobacco smoke, 

aromatic candles, cleaning flu-

ids, oil or kerosene lamps, etc.) in 

the air exist, may discolor walls 

or cause odors.

IMPORTANT:

 Vent-free heaters add moisture 

to the air. Although this is beneficial, installing 
heater  in  rooms  without  enough  ventilation 
air may cause mildew to form from too much 

moisture. See 

Air for Combustion and Ventila-

tion

, page 5.

CHECK GAS TYpE

Use the correct gas type (natural or propane/
LP) for your unit. If your gas supply is not cor-

rect, do not install heater. Call dealer where 

you bought heater for proper type heater.

 WARNING: This appliance is 

equipped for either natural gas 

or propane/LP gas but not both. 

Gas type is indicated on the rat-

ing plate. Field conversion is not 

permitted.

NOTICE: This heater is intended 

for  use  as  supplemental  heat. 

Use this heater along with your 

primary heating system. Do not 

install  this  heater  as  your  pri-

mary heat source. If you have a 

central heating system, you may 

run system’s circulating blower 

while using log heater. This will 

help circulate the heat from your 

log heater throughout the house. 

In the event of a power outage, 

you can use this heater as your 

primary heat source.

 WARNING: A qualified ser-

vice person must install heater. 

Follow all local codes.

NOTICE: State or local codes may 

only allow operation of this appli-

ance  in  a  vented  configuration. 

Check your state or local codes.

 WARNING: Before installing 

in a solid fuel burning fireplace, 

the  chimney  flue  and  firebox 

must be cleaned of soot, creo-

sote, ashes and loose paint by 

a  qualified  chimney  cleaner. 

Creosote  will  ignite  if  highly 

heated. A dirty chimney flue may 

create and distribute soot within 

house. Inspect chimney flue and 

firebox for damage. If damaged, 

repair  flue  and  firebox  before 

operating heater.

  WARNING:  Seal  any  fresh 

air vents or ash clean-out doors 

located on floor or wall of fire-

place. If not, drafting may cause 

pilot  outage  or  sooting.  Use  a 

heat-resistant  sealant.  Do  not 

seal chimney flue damper.

Summary of Contents for HDVF3018N

Page 1: ...of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any...

Page 2: ...itisinstalled Provisions for adequate combustion and ventila tion air must be provided RefertoAirforCombustion and Ventilation section on page 5 of this manual This appliance may be in stalled in an a...

Page 3: ...ntrols can be dangerous WARNING Donotallowfans toblowdirectlyintothefireplace Avoidanydraftsthatalterburner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burne...

Page 4: ...1 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated thevaporsfromtheseproductsmay create a white powder residue within burner box or on adjacent walls or f...

Page 5: ...ibit the use of vent free heaters This heater may also be operated as a vented decorative ANSI Z21 60 product by opening the flue damper Safety Pilot This heater has a pilot with an Oxygen Deple tion...

Page 6: ...ining Fresh Air Flow for Heater Location Confined and Unconfined Space National Fuel Gas Code ANSI Z223 1 NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000...

Page 7: ...l GasCode ANSIZ223 1 NFPA54 theInternationalFuelGasCode or applicable local codes VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space When...

Page 8: ...nce is equipped for either natural gas or propane LP gas but not both Gas type is indicated on the rat ingplate Fieldconversionisnot permitted NOTICE Thisheater isintended for use as supplemental heat...

Page 9: ...rances to combustible materials B Clearances from the top of the fireplace opening to the ceiling should not be less than 42 INSTALLATION Continued Figure 4 Minimum Clearance for Combustible to Wall M...

Page 10: ...ed Follow minimum clear ances shown in Figure 7 page 11 when using hood NOTICE Surface temperatures of adjacent walls and mantels become hot during operation Walls and mantels above the firebox may be...

Page 11: ...Clamp Damper Floor Clearances A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are less than 14 to the...

Page 12: ...ot heater will move when you adjust controls Moving heater may cause a gas leak CAUTION Do not pick up heater base assembly by the burner This could damage heater Only handle base as sembly by grates...

Page 13: ...to test gauge connection Purchase the optional CSA design certified equipment shutoff valve from your dealer For propane LP units the installer must supply an external regulator The external regulator...

Page 14: ...e Pipe Cap Joint Nipple Propane LP From External Regulator 11 W C to 14 W C Pressure Natural From Gas Meter 5 W C to 10 5 W C Pressure controls If sediment trap is not installed or is installed wrong...

Page 15: ...all joints from equipment shutoff valve to control valve see Figures 16 and 17 Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light hea...

Page 16: ...ee Figure 20 4 Locate holes on bottom of right crossover log 4 Slide holes onto right pin on middle log 2 and right pin on back log 3 See Figure 21 for placement 5 Locate holes on bottom of middle cro...

Page 17: ...clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information column 1 If you don t smell gas go to the next step FOR YOUR SAFETY READ BEFORE L...

Page 18: ...y press and turn control knob coun terclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 22 Note You may be running this heater for the first time after hooking up to...

Page 19: ...ff Gas to Ap pliance page 18 see Troubleshooting page 21 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color WARNING Turn off...

Page 20: ...flame comes out of the pilot assembly see Figure 27 With the unit off lightly blow air through the air inlet hole You may blow through a drinking straw if compressed air is not available Figure 26 In...

Page 21: ...talled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep...

Page 22: ...equipment shut off valve 4 A Contact local propane LP or natural gas com pany B Clean ODS pilot see Cleaning and Maintenance page 19 or replace ODS pilot assembly 5 Hand tighten until snug then tight...

Page 23: ...ocal propane LP or natural gas company 3 Observeminimuminstallation clearances see page 9 4 Clean burner see Cleaning and Maintenance page 19 or replace burner orifice 1 Turn heater off when us ing fu...

Page 24: ...tement above 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement above REMEDY 1 Open window and venti late room Stop using odor causing product...

Page 25: ...ass For all models Helps deflect heat away from mantel or wall above fireplace Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty Parts...

Page 26: ...www desatech com 119421 01E 26 Parts Variable Manually Controlled MODELS HDVF3018P AND HDVF3018N 24 21 11 12 13 4 6 3 2 21 8 21 7 10 9 16 15 17 19 22 18 14 19 23 20 18 5 1...

Page 27: ...056 19 Burner Orifice Injector LP 1 099056 26 Burner Orifice Injector NG 1 12 111124 01 Burner Retainer Spring 1 13 102980 01 Burner 1 14 119583 01 Control Valve LP 1 102568 07 Control Valve NG 1 15 0...

Page 28: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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