background image

11

Figure 7- Minimum fireplace 

clearances if installed at floor level

Combustible Material 

14” Min

Noncombustible  Material 

Figure 8 - Minimum fireplace 

clearances above combustible flooring

Combustible Material 

5” Min

Hearth

INSTALLING DAMPER CLAMP ACCESSORY  

FOR VENTED OPERATION

NOTE:

 When used as a vented heater, appliance must be 

installed only in a solid-fuel burning fireplace with a working 
flue constructed of noncombustible material. You may use 

this heater as a vented product. There are three reasons for 
operating your heater as a vented model:

1.  The fireplace does not meet the clearance requirements for 

vent-free operation.

2.  State or local codes do not permit vent-free operation.
3.  You prefer vented operation.

If reasons number 1 or 2 above apply to you, you must perma-

nently open chimney flue damper. You must install the damper 

clamp accessory. This will insure vented operation (see Figure 9). 

The damper clamp will keep damper open.
See chart below for the minimum permanent flue opening you 

must provide. Attach damper clamp so the minimum permanent 
opening will be maintained at all times.

Chimney 

Height (ft.)

Minimum Permanent 

Flue Opening (sq. in)

6’  to 15’

39 sq inches

15’ to 30’

29 sq inches

Area of Various Standard Round Flues
Diameter (in.)

Area (sq. in.)

5 in.

20 sq inches

6 in.

29 sq inches

7 in.

39 sq inches

8 in.

51 sq inches

Figure 9 - Attach Damper to Fireplace

Figure 6 - Minimum mantel 

clearances when using hood

  Log set

18”, 24” Models

Top of Fireplace 

Opening 

Underside of

 Mantel Shelf 

 Mantel Shelf 

 Minimum Non- 

Combustible Material 

Hood

Distances to 

Underside of Mantel

A l l   m i n i m u m 

distances are in 

inches 

Damper 

Damper 

Clamp

Damper 

Summary of Contents for EW18NM

Page 1: ...diately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed...

Page 2: ...al LP Propane Natural LP Propane Input Rating BTU Hr Max 29 000 26 000 35 000 33 000 Min 10 500 22 000 16 000 19 000 Ignition Electronic Piezo Electronic Piezo Electronic Piezo Electronic Piezo Manifo...

Page 3: ...pane LP gas may be present even 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 heater WARN...

Page 4: ...r needs fresh outside air ventilation to run properly This heater has an Oxygen Depletion Sensor ODS safety shutoff system The ODS shuts down the heater if not enough fresh air is available See Air Fo...

Page 5: ...alled in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1 000 Btu per hour 4 8 m3 per kw of the aggregate input rating of all appliances installed in tha...

Page 6: ...Btu Hr used Btu Hr maximum the space can support Btu Hr actual amount of Btu Hr used Example 51 200 Btu Hr maximum the space can support 71 000 Btu Hr actual amount of Btu Hr used The space in the abo...

Page 7: ...rd for Unvented Heaters and can be oper ated with the flue damper closed State and local codes in some areas prohibit the use of vent free heaters Safety Pilot This heater has a pilot with an Oxygen D...

Page 8: ...ure all parts are present Compare parts with package contents list If any part is missing or damaged do not attempt to assemble install or operate the product Contact customer service for replacement...

Page 9: ...ary heating system Do not install this heater as your primary heat source If you have a central heating system you may run the system s circulating blower while using the heater This will help circula...

Page 10: ...hood Determining Mantel Clearances If you meet minimum clearance requirements between mantel shelf and top of fireplace opening a hood is not necessary see Figure 5 Determining Minimum Mantel Clearan...

Page 11: ...reasons number 1 or 2 above apply to you you must perma nently open chimney flue damper You must install the damper clamp accessory This will insure vented operation see Figure 9 The damper clamp will...

Page 12: ...side to side in fireplace INSTALLING HEATER BASE ASSEMBLY CAUTION Do not remove the metal data plates attached to the heater base assembly The data plates contain important warranty Information WARNIN...

Page 13: ...e joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves CAUTION Use only a new black iron or steel pi...

Page 14: ...connect heater and equipment shutoff valve to gas supply Check reconnected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIQ 1 Close equipment shutoff valve see Figure 14 2 Pressurize s...

Page 15: ...disconnection when servicing controls wiring errors can cause improper and dangerous operation Verify proper operation after servicing The millivolt valve is a self powered combination gas control th...

Page 16: ...cause some gas is heavier than air and will settle on the floor 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 I...

Page 17: ...as control knob counterclockwise to the ON position 10 This valve is equipped with a HI LO feature Set fireplace input as desired 11 If the heater will not operate follow the instructions To Turn Off...

Page 18: ...Incorrect Pilot Flame Patter EW18 24NM EW18 24NV Models Figure 23 Correct Flame Pattern with Control Knob Set to High Flame More than 3 6 Above Top of Logs BURNER FLAME PATTERN Figure 23 shows a corr...

Page 19: ...1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot and primary air inlet holes on injector holder for dust and dirt see Figure 25 3 Blow...

Page 20: ...pressing ignitor button 3 Continue holding down control knob Repeat igniting operation until air is removed 4 Clean ODS pilot see Care and Main tenance page 19 or replace ODS pilot assembly 5 Turn con...

Page 21: ...peration 1 Residues from manufactory 2 Not enough combustion ventila tion air 1 Problem will stop after a few hours 2 Refer to air for combustion and venti lation requirements 1 Control knob not fully...

Page 22: ...Locate and correct all leaks see Checking Gas Connections page14 2 Replace control valve 1 Gas leak See Warning statement page 20 2 Control valve defective Gas odor during combustion 1 Gas leak See W...

Page 23: ...er Service or your dealer have ready Your name Your address Model and serial number of your heater How heater was malfunctioning Type of gas used Propane LP or Natural gas NG Purchase date Usually we...

Page 24: ...ont Log Bracket 1 2 WYL006 01D WYL006 01D WYL006 02D WYL006 02D Middle Log Bracket 1 3 PIMSC1 01 PIMSC1 01 PIMSC1 01 PIMSC1 01 Ignitor 1 4 DPL047 01 DPL047 01 DPL047 01 DPL047 01 Knob 1 5 NV2020 1223...

Page 25: ...YL006 01D WYL006 02D WYL006 02D Middle Log Bracket 1 3 PIMSC1 01 PIMSC1 01 PIMSC1 01 PIMSC1 01 Ignitor 1 4 VL067 01 VL067 01 VL067 01 VL067 01 Switch 1 5 MAL033 01 MAL033 01 MAL033 01 MAL033 01 Knob 1...

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