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www.desatech.com

114924-01B

17

Purchase these appliances from your local dealer. 

If they can not supply these accessories, call DESA 

at 1-866-672-6040 for referral information. You 

can also write to the address listed on the back 

page of this manual.

EQUIPMENT SHUTOFF VALVE 
GA5010

Equipment shutoff valve with 1/8" NPT tap. Fits 

1/2" pipe.

FIREPLACE HOOD

Black - GA6050
Brass - GA6052
Antique Brass - GA6053

Helps deflect heat away from mantel or wall above 

fireplace. Fits opening 28" to 48" wide.

RECEIVER AND HAND-HELD 
REMOTE CONTROL KIT - GHRCB

Allows the gas log heater to be turned on and off 

using a hand-held remote control.

CLEANING KIT - GCK

(Not Shown)

Your vented gas appliance requires regular cleaning 

and maintenance to prevent performance problems. 

This kit gives you the tools and instructions to make 

it easy to clean all critical areas of your appliance.

DAMPER CLAMP - GA6080

(Not Shown)

Permanently  opens  chimney  flue  damper  for 

vented operation.

LAVA ROCK - GA6060

(Not Shown)

Order when additional rock is desired (1.8 lb. bag)

ACCESSORIES

SERVICE HINTS

When Gas Pressure is Too Low

•  pilot will not stay lit
•  burners will have delayed ignition
•  propane/LP gas supply may be low
You  may  feel  your  gas  pressure  is  too  low.  If 

so, contact your local propane/LP or natural gas 

supplier.

TECHNICAL SERVICE

You may have further questions about installation, 

operation or troubleshooting. If so, contact DESAʼs 

Technical Service Department at 1-866-672-6040. 

When calling please have your model and serial 

numbers of your heater ready.
You can also visit DESAʼs technical services web 

site at 

www.desatech.com.

REPLACEMENT PARTS

Note:

 Use only original replacement parts. This 

will  protect  your  warranty  coverage  for  parts 

replaced under warranty. 

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they 

canʼt supply original replacement part(s), call DESAʼs 

Technical Service Department at 1-866-672-6040. 

When calling DESA, have ready
•  your name and address
•  model and serial numbers of your log set 
•  how log set was malfunctioning
•  type of gas used (propane/LP or natural gas)
•  purchase date
Usually, we will ask you to return the part to the 

factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they 

canʼt  supply  original  replacement  part(s),  call 

DESA at 1-866-672-6040 for referral information. 

When calling DESA, have ready
•  model number of your log set 
•  the replacement part number

Summary of Contents for Firewerks MVO18VNA

Page 1: ...any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor...

Page 2: ...s ANSI Z233 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes...

Page 3: ...though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this log set WARNING Do not place log scraps or...

Page 4: ...en in place and fully closed Unless provided by other means screens shall have openings for introduction of combustion air 8 If replace has glass doors never operate with glass doors closed If you ope...

Page 5: ...ot to be used with vented decorative appliances INSTALLATION WARNING A quali ed ser vice person must install heater Follow all local codes WARNING Before installing in a solid fuel burning replace the...

Page 6: ...re place constructed of noncombustible material and connected to a working ue The replace chimney must have a permanent vent opening to outside with minimum openings shown in Figure 3 Figure 2 Technic...

Page 7: ...read inlet connection to the control valve CAUTION Never connect propane LP unit directly to the propane LP supply This unit re quiresanexternalregulator not supplied Install the external regulator be...

Page 8: ...is not installed or is installed wrong heater may not run properly CAUTION Avoid damage to gas control Hold gas control with wrench when connecting it to gas piping and or ttings Figure 7 Gas Connect...

Page 9: ...oints Propane LP Gas Only Figure 10 Checking Gas Joints Natural Gas Only Equipment Shutoff Valve Gas Meter Control Valve Location Pressure Testing Appliance Gas Connections 1 Open equipment shutoff va...

Page 10: ...been under water LIGHTING INSTRUCTIONS 1 STOP Read the safety information col umn 1 2 Make sure switch is in OFF position 3 Be sure gas line shut off valve is OPEN 4 Press in and turn control knob clo...

Page 11: ...hand held remote was on when selector switch was last turned off You can now turn the burner on and off with the hand held remote control unit OPERATING APPLIANCE Continued Figure 13 Setting the Sele...

Page 12: ...attern Yellow Flames with Orange Streaks CLEANING AND MAINTENANCE WARNING Turn off the ap pliance and allow to cool before cleaning CAUTION You must keep control areas burners and cir culating air pas...

Page 13: ...in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is in correct When ignitor button is pressed there is no spark at ODS pilot When igni...

Page 14: ...page 11 1 Contact local natural or propane LP gas company 2 Clean burner s see Cleaning and Maintenance page 12 1 Clean burner see Cleaning and Maintenance page 12 or replace burner ori ce 2 Replace d...

Page 15: ...ate burners until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 6 4 Clean burners see Cleaning and Mainte...

Page 16: ...nding while heating or contracting while cooling 1 Appliance burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT statement above 2 Low fuel supply propane LP onl...

Page 17: ...lit burners will have delayed ignition propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local propane LP or natural gas supplier TECHNICAL SERVICE You may...

Page 18: ...www desatech com 114924 01B 18 ILLUSTRATED PARTS BREAKDOWN MVO24VNA MVO24VPA MVO18VNA MVO18VPA 1 2 3 4 5 6 17 16 15 7 8 9 10 11 12 14 13...

Page 19: ...1 111807 02 111807 01 111807 02 Valve 1 10 112376 01 103778 01 112376 01 103778 01 Pilot Assembly 1 11 111828 01 111818 01 111828 01 111828 01 Brass Fitting 2 12 114930 02 114930 02 114930 01 114930 0...

Page 20: ...The heater MUST be installed by a quali ed installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original conditi...

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