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119678-01C

7

AIR FOR COMbUSTION AND VENTILATION

Continued

DETERMINING FRESH-AIR FLOW 
FOR HEATER LOCATION

Determining if You Have a Confined or 
Unconfined Space

Use this work sheet to determine if you have 
a confined or unconfined space.

Space: 

Includes the room in which you will install 

fireplace  plus  any  adjoining  rooms  with  door

-

less passageways or ventilation grills between 

the rooms.
1.  Determine the volume of the space (length 

x width x height).

 

Length x Width x Height =__________cu. ft. 
(volume of space)

 

Example:

 Space size 20 ft. (length) x 16 ft. 

(width) x 8 ft. (ceiling height) = 2560 cu. ft. 

(volume of space)

 

If  additional  ventilation  to  adjoining  room 

is supplied with grills or openings, add the 

volume of these rooms to the total volume 
of the space. 

2.  Multiply the space volume by 20 to determine 

the maximum Btu/Hr the space can support.

 

  ________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)

 

Example:

 2560 cu. ft. (volume of space) x 20 

= 51,200 (maximum Btu/Hr the space can 

support)

3.  Add the Btu/Hr of all fuel burning appliances 

in the space.

 

Vent-free fireplace 

 _________ Btu/Hr

 

Gas water heater* 

 _________ Btu/Hr

 

Gas furnace 

 _________ Btu/Hr

 

Vented gas heater 

 _________ Btu/Hr

 

Gas fireplace logs 

 _________ Btu/Hr

 

Other gas appliances*  + ________ Btu/Hr

 

Total  

= ________ Btu/Hr

 

* Do not include direct-vent gas appliances. 

Direct-vent  draws  combustion  air  from  the 

outdoors and vents to the outdoors.

 

Example:

 

 

Gas water heater 

 _________ Btu/Hr

 

Vent-free fireplace 

+

 ________ Btu/Hr

 

Total 

= ________ Btu/Hr

4.  Compare  the  maximum  Btu/Hr  the  space 

can support with the actual amount 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 space in the above example is a confined 

space because the actual Btu/Hr used is more 
than  the  maximum  Btu/Hr  the  space  can  sup-

port. You must provide additional fresh air. Your 
options are as follows:
A.  Rework worksheet, adding the space of an 

adjoining room. If the extra space provides 

an unconfined space, remove door to adjoin

-

ing  room  or  add  ventilation  grills  between 

rooms.  See 

Ventilation  Air  From  Inside 

Building.

B.  Vent  room  directly  to  the  outdoors.  See 

Ventilation Air From Outdoors, 

page 8.

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 maxi-

mum Btu/Hr the space can support,

 

the space is 

an unconfined space. You will need no additional 

fresh air ventilation.

 WARNING: If the area in which 

the heater may be operated does 

not meet the required volume for 

indoor combustion air, combus

-

tion and ventilation air shall be 

provided by one of the methods 

described  in  the 

National  Fuel 

Gas Code, ANSI Z223.1/NFPA 54, 

the

 International Fuel Gas Code,

 

or applicable local codes.

vENTILATION AIR

Ventilation Air From Inside Building 

This fresh air would come from an adjoining 
unconfined  space.  When  ventilating  to  an 
adjoining unconfined space, you must provide 
two  permanent  openings:  one  within  12"  of 
the ceiling and one within 12" of the floor on 
the wall connecting the two spaces (see op

-

tions 1 and 2, Figure 2, page 8). You can also 

remove door into adjoining room (see option 

3, Figure 2, page 8). Follow the 

National Fuel 

Gas  Code,  ANSI  Z223.1/NFPA  54,  Air  for 
Combustion and Ventilation

 for required size 

of ventilation grills or ducts.

  40,000
  33,000
  73,000

Содержание EZ18N

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 31: ..._____________________________ __________________________________________________________ __________________________________________________________ ____________________________________________________...

Страница 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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