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119678-01C

10

INSTALLATION

Continued

NOTICE: Manual control heaters 

may be used as a vented product. 

If so, you must always run heater 

with chimney flue damper open. 

If  running  heater  with  damper 

open, noncombustible material 

above fireplace opening is not 

needed. Go to 

Installing Damper 

Clamp  Accessory  for  Vented 

Operation

, page 12.

Minimum Noncombustible Material 

Clearances

If Not Using Mantel

Note: If using  a mantel  proceed  to If Using 
Mantel. If not using a mantel, follow the infor-
mation on this page.

You  must  have  noncombustible  material(s) 
above the fireplace opening. Noncombustible 
materials  (such  as  slate,  marble,  tile,  etc.) 
must be at least 1/2" thick. With sheet metal, 

you must have noncombustible material be-
hind it. Noncombustible material must extend 

at least 8" up. If noncombustible material is 
less than 12", you must install the fireplace 

hood accessory. See Figure 5 for minimum 
clearances.

If Using Mantel

You  must  have  noncombustible  material(s) 
above the fireplace opening. Noncombustible 
materials  (such  as  slate,  marble,  tile,  etc.) 
must be at least 1/2" thick. With sheet metal, 

you must have noncombustible material be-
hind it. Noncombustible material must extend 

at least 8" up. If noncombustible material is 
less than 12", you must install the fireplace 

hood  accessory.  Even  if  noncombustible 

material is more than 12", you may need the 
hood  accessory  to  deflect  heat  away  from 

your mantel shelf. See Figure 5 and Figures 6 

and 7, page 11, for minimum clearances.

IMPORTANT:

 If you cannot meet these mini-

mum  clearances,  you  must  operate  heater 
with chimney flue damper open. Go to 

Install-

ing  Damper  Clamp  Accessory  for  Vented 
Operation

, page 12.

Heat Resistant
Material 

(A)

Figure 5 - Heat Resistant Material (Slate, 

Marble, Tile, etc.) Above Fireplace

Noncombustible 

Material Distance 

(A)

Requirements for Safe 

Installation

12" or more

Noncombustible  mate-

rial OK.

Between 8" and 12"

Install  fireplace  hood 

accessory  (GA6050, 

GA6052  or  GA6053  see 

Accessories

, page 30).

Less than 8"

Noncombustible  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

In addition to meeting noncombustible mate-

rial clearances, you must also meet required 
clearances  between  fireplace  opening  and 

mantel shelf. If you do not meet the clearances 

listed below, you will need a hood.

Determining Minimum Mantel Clearance

If you meet minimum clearance between man

-

tel shelf and top of fireplace opening, a hood 
is not required (see Figure 6, page 11).

Determining Minimum Mantel Clearance 
When Using a Hood

If minimum clearances in Figure 6, page 11, 
are  not  met,  you  must  have  a  hood.  When 

using a hood there are still certain minimum 

mantel clearances required. Follow minimum 
clearances shown in Figure 7, page 11, when 

using hood.

Summary of Contents for EZ18N

Page 1: ...l switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department...

Page 2: ...ING This is an unvented gas fired heat er It uses air oxygen from the room in which it is installed Provisions for adequate combustion and ventilation air must be provided Refer to Air for Combustion...

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 fireplace WARNING Any change to this heater...

Page 4: ...p inside fireplace will cause glass to burst Make sure there are no obstructions across openings of fireplace 8 To prevent the creation of soot follow the instructions in Cleaning page 20 9 Before usi...

Page 5: ...must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy...

Page 6: ...rectly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the un confined space Adjoining rooms are communicating only if there are...

Page 7: ...unt of Btu Hr used ________ Btu Hr maximum the space can support ________ Btu Hr actual amount used Example 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The s...

Page 8: ...ted Crawl Space To Crawl Space To Attic Installation Figure 2 Ventilation Air from Inside Building Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 Ventilati...

Page 9: ...pe of gas natural or propane LP If your gas supply is not the correct gas type do not install heater Call dealer where you bought heater for proper type heater WARNING This appliance is for either nat...

Page 10: ...e material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figure 5 and Figures 6 and 7 page 11 for minimum clearances IMPORTANT If you cannot meet thes...

Page 11: ...lled at Floor Level Figure 7 Minimum Mantel Clearances When Using Hood Floor Clearances A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Fi...

Page 12: ...inimum permanent flue opening you must provide Attach damper clamp so the minimum permanent flue open ing will be maintained at all times Area of Various Standard Round Flues Diameter Area 5 20 sq inc...

Page 13: ...e to Fireplace Floor Masonry Screw CONNECTING TO GAS SUPPLY WARNING This appliance requires a 1 2 NPT National Pipe Thread inlet connection to the pressure regulator WARNING A qualified service person...

Page 14: ...nt lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Propane LP Supply Tank External Regulator with Vent Po...

Page 15: ...r near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping sys tem Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correct all...

Page 16: ...ailure to use only parts specifically approved with this heater may result in property damage or personal injury It is very important to install these logs exactly as instructed Do not modify logs Onl...

Page 17: ...uctions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SME...

Page 18: ...ou don t smell gas go to the next step Operation Continued Figure 23 Pilot Ignitor Electrode Thermocouple Pilot Burner Figure 22 Control Knob and Ignitor Button Location OFF PILOT ON Control Knob Elec...

Page 19: ...kwise to the PILOT position 3 Press in control knob and turn clockwise to the OFF position 4 Close equipment shutoff valve see Figure 15 page 15 Manual lighting procedure 1 Follow steps 1 through 5 un...

Page 20: ...rculating air passageways of heater clean Inspect these areas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent cleaning due to excessi...

Page 21: ...slotted burner flame holes should be open with yellow flame pres ent All round burner flame holes should be open with a small blue flame present Some burner flame holes may become blocked by debris or...

Page 22: ...hile in PILOT position 4 Air in gas lines when in stalled 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 i...

Page 23: ...te for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning page 20 or re...

Page 24: ...checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see pages 9 through 11 4 Clean burners see Clean ing page 20 or replace burner orifice s 1 Turn heater off...

Page 25: ...s from paint hair spray glues cleaners chemicals new carpet etc See IMPOR TANT statement above 2 Low fuel supply propane LP only 3 Gas leak See Warning statement at top of page 1 Gas leak See Warning...

Page 26: ...www desatech com 119678 01C 26 Parts Models EZ18N EZ18P EZ24N and EZ24P LPG 11 13 31 10 30 4 1 8 3 12 8 2 5 6 7 28 22 23 8 20 17 24 26 19 21 15 2 23 29 9 18 16 25 8 8...

Page 27: ...ural 1 12 101004 04 Front Burner Injector Natural 1 101004 01 Front Burner Injector Propane LP 1 101004 22 Front Burner Injector Natural 1 101004 06 Front Burner Injector Propane LP 1 13 107634 01 NG...

Page 28: ...2 3 5 6 7 KEY NO PART NO DESCRIPTION QTY 1 114984 01 Middle Log 1 114984 12 Middle Log 1 2 114984 02 Left Top Log 1 114984 13 Left Top Log 1 3 114984 03 Right Top Log 1 114984 14 Right Top Log 1 4 114...

Page 29: ...acement part s call DESA Heating LLC at 1 866 672 6040 for referral information A list of authorized dealers can be found by visiting www desatech com When calling DESA Heating LLC have ready model an...

Page 30: ...it gives you the tools and instructions to make it easy to clean all critical areas of your appliance Accessories FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps def...

Page 31: ..._____________________________ __________________________________________________________ __________________________________________________________ ____________________________________________________...

Page 32: ...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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