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www.desatech.com

123167-01D

5

Figure 1 - Yellow Flame Vent-Free Gas Log Heater

LOcAL cODES

UNPAckING

PRODUcT IDENTIFIcATION

Control Knob

Log Set

Install  and  use  heater  with  care.  Follow  all 
local  codes. In the absence  of local  codes, 

use  the  latest  edition  of 

The  National  Fuel 

Gas Code ANSI Z223/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY  10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA  02269

Note:  Where  listed  vented  decorative  logs 
are  required,  thermostat  models  are  not 
permitted.

State  of  Massachusetts:

  The  installa-

tion 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 of 527 
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for 
bedroom and bathroom installation in the 

Commonwealth of Massachusetts.

 CAUTION: Do not remove the 

data  plates  from  the  grate  as

-

sembly. The data plates contain 

important  warranty  and  safety 

information.

1.  Remove logs and heater base assembly 

from carton.

 

Note: Do not pick up heater base assem-
bly by burners. This could damage heater. 
Always handle base assembly by grate

.

2.  Remove all protective packaging applied 

to logs and heater for shipment.

3.  Check heater for any shipping damage. If 

heater is damaged call DESA Heating, LLC 

at 1-866-672-6040 for replacement parts 
before returning to dealer.

PRODUcT FEATURES

OpERATION

This  heater  is  clean  burning.  It  requires  no 
outside venting. There is no heat loss out a 
vent or up a chimney. Heat is generated by 

realistic, dancing yellow flames. This heater 
is designed for vent-free operation with flue 

damper  closed.  It  has  been  tested  and  ap-
proved  to ANSI  Z21.11.2  standard  for  un-
vented heaters. State and local codes in some 
areas prohibit the use of vent-free heaters.

SAFETY pILOT

This heater has a pilot with an Oxygen Deple

-

tion Sensing (ODS) safety shutoff system. The 
ODS/pilot is a required feature for vent-free 
room  heaters.  The  ODS/pilot  shuts  off  the 
heater if there is not enough fresh air.

Millivolt Valve 
Battery Pack

Summary of Contents for HD18NRA

Page 1: ...o 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 Installat...

Page 2: ...vented 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 and Ven tilation...

Page 3: ...t 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 fireplace WARNING Any change to this...

Page 4: ...l operation slight smok ing could occur due to log curing and heater burning manufacturing residues 10 To prevent the creation of soot follow the instructions in Cleaning and Maintenance page 22 11 Be...

Page 5: ...e data plates from the grate as sembly The data plates contain important warranty and safety information 1 Remove logs and heater base assembly from carton Note Do not pick up heater base assem bly by...

Page 6: ...ally tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed to the out side atmosphere have a continuous wa...

Page 7: ...an the maximum Btu Hr the space can support 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 un...

Page 8: ...openings for inlet or outlet air into attic if attic has a thermo stat controlled power vent Heated air entering the attic will activate the power vent AIR FOR COMBUSTION AND VENTILATION Continued WAR...

Page 9: ...can provide greater clearances from floor ceiling and adjoining wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall 16 Ceiling 42 Front 36 Measured at 13 Depth Carefully follow the ins...

Page 10: ...mantels above the firebox may become hot to the touch If installed properly these tem peratures meet the requirement ofthenationalproductstandard Follow all minimum clearances shown in this manual Fi...

Page 11: ...fireplace with a working flue and con structed of noncombustible material For Massachusetts Residents Only Instal lation of this gas log set as a vented appliance in the Commonwealth of Massachusetts...

Page 12: ...side to side in fireplace 6 Carefully remove logs without moving heater base Heater Gas Regulator Flexible Gas Hose if allowed by local codes Figure 10 Attaching Flexible Gas Hose to Heater Gas Regula...

Page 13: ...ral gas units never connect heater to private non utility gas wells This gas is commonly known as wellhead gas Installation Items Needed Before installing heater make sure you have the items listed be...

Page 14: ...lding codes for any special requirements for locating equipment shutoff valve to fireplaces Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from going into pipe E...

Page 15: ...e from gas supply piping Pressures in excess of 1 2 psig will dam age heater regulator 2 Cap off open end of gas pipe where equip ment shutoff valve was connected 3 Pressurize supply piping system by...

Page 16: ...was removed from fireplace be fore installation of remote accessory see Installing Heater BaseAssembly page 12 to reinstall heater into fireplace Test gas connections for leaks see Checking Gas Conne...

Page 17: ...check to ensure that no flame comes in contact with any log WiththeheatersettoHigh check toseeifflamescontactanylog If so reposition logs according to the log installation instructions in this manual...

Page 18: ...ust be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is he...

Page 19: ...Continued 5 Press in control knob and turn counter clockwise to the PILOT position see Figure 24 The ignitor will spark once Keep control knob pressed in for 5 seconds If control knob does not pop up...

Page 20: ...llow steps 1 through 5 under Lighting Instructions beginning on page 19 2 Press control knob and light pilot with match 3 Keep control knob pressed in for 30 sec onds after lighting pilot After 30 sec...

Page 21: ...d remote control 2 Press AUTO button to select this mode 3 Set desired room temperature by pressing TEMP or buttons 4 Press POWER and LOCK buttons to gether to turn off fireplace Note Do not leave han...

Page 22: ...ame present If so turn off heater and let cool Remove blockage blocked burner flame holes will create soot Cleaning and Maintenance WARNING Turn off heater and let cool before cleaning CAUTION You mus...

Page 23: ...uremovelogsforcleaning refertoInstall ing Logs page 17 to properly replace logs Replace log s if broken or chipped dime sized or larger BURNER PRIMARY AIR HOLES Air is drawn into burner through the 8...

Page 24: ...on 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 OBSERVED PROBLEM When control knob is pressed in and turned t...

Page 25: ...ropane LP gas company 4 Change batteries see Mil livolt Valve Battery Pack page 17 1 Contact local natural or propane LP gas company 2 Clean burner see Cleaning and Maintenance page 22 or replace burn...

Page 26: ...propane LP gas company 3 Observe minimum instal lation clearances see page 9 4 Clean burner see Cleaning and Maintenance page 22 or replace burner orifice 1 Turn heater off when us ing furniture polis...

Page 27: ...cking Gas Con nections page 14 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 22 4 Change batteries see...

Page 28: ...e factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply original replacement part s either contact your nearest Parts Central see page 29 or call DESA Heatin...

Page 29: ...ce 2444 N 5th Street Hartsville SC 29550 843 332 0191 Parts Department Cans Unlimited Inc P O Box 645 Taylor SC 29687 0013 All States 803 879 3009 1 800 845 5301 cuisales aol com Those Heater Guys 255...

Page 30: ...www desatech com 123167 01D 30 Parts MODELS HD18NRA HD18PRA HD24NRA and HD24PRA 1 24 23 2 14 18 10 25 9 12 16 18 20 15 4 7 6 8 11 19 5 13 3 21e 21c 21a 21d 21b...

Page 31: ...1 12 122190 01DD Remote Sensor Bracket 1 13 099387 08 Pilot Tube 1 14 122145 01 Battery Holder 1 15 098354 01 Control Knob 1 16 M11084 26 Screw HWH AB 10 16 x 0 38 7 17 098304 01 Screw PPH AB 10 16 x...

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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