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www.desatech.com

122136-01C

5

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.

PRODUCT FEATURES

AIR FOR COMbUSTION AND VENTILATION

UNPACkING

LOCAL CODES

 CAUTION: Do not remove the 

data  plates  from  the  grate  as

-

sembly. The data plates contain 

important  warranty  and  safety 

information.

1.  Remove log 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 log 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.

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 
approved  to  ANSI  Z21.11.2  standard  for 
unvented  heaters.  State  and  local  codes 
in  some  areas  prohibit  the  use  of  vent-free 

heaters.  Non-thermostat  models  may  also 
be  operated  as  a  vented  decorative  (ANSI 

Z21.60) product by opening flue damper.

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.

 WARNING: This heater shall 

not be installed in a room or space 

unless the required volume of in

-

door combustion air is provided 

by the method described in the 

National  Fuel  Gas  Code,  ANSI 

Z223.1/NFPA 54,

 the 

International 

Fuel Gas Code,

 or applicable lo

-

cal codes. Read the following in

-

structions to insure proper fresh 

air for this and other fuel-burning 

appliances in your home.

Today’s homes are built more energy efficient 
than ever. New materials, increased insulation 

and  new  construction  methods  help  reduce 
heat  loss  in  homes.  Home  owners  weather 
strip and caulk around windows and doors to 
keep the cold air out and the warm air in. Dur-

ing heating months, home owners want their 

homes as airtight as possible.
While it is good to make your home energy 

efficient, your home needs to breathe. Fresh 

air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion 
and ventilation.

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.

Summary of Contents for VSB18N

Page 1: ...se 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 Installation and...

Page 2: ...id fuel burning masonry or UL127 factory built fireplace or in a listed ventless firebox enclo sure It is design certified for these installations in accordance with ANSI Z21 11 2 Exception Do not ins...

Page 3: ...ll warnings Keep this manual for reference It is your guide to safe and proper operation of this fireplace WARNING Any change to this heater or its controls can be dangerous WARNING Do not use a blowe...

Page 4: ...ank of less than 100 lbs capacity is not recommended propane LP units only 4 If you smell gas shut off gas supply do not try to light any appliance do not touch any electrical switch do not use any ph...

Page 5: ...heaters Non thermostat models may also be operated as a vented decorative ANSI Z21 60 product by opening flue damper Safety Pilot This heater has a pilot with an Oxygen Deple tion Sensing ODS safety s...

Page 6: ...se volume is less than 50 cubic feet per AIR FOR COMBUSTION AND VENTILATION Continued 1 000 Btu per hour 4 8 m3 per kw of the ag gregate input rating of all appliances installed in that space and an u...

Page 7: ...asCode 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...

Page 8: ...heat resistant sealant Do not seal chimney flue damper Installation WARNING Never install the heater in a bedroom or bathroom unless installed as a vented appliance see page 11 in a recreational vehi...

Page 9: ...ceiling should not be less than 42 Figure 4 Minimum Clearance for Combustible to Wall Minimum 16 from Side Wall Example INSTALLATION Continued NOTICE Manualcontrolheaters maybeusedasaventedproduct Ifs...

Page 10: ...t 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...

Page 11: ...ree reasons for operating your heater in the vented mode 1 The fireplace does not meet the clearance to combustibles requirements for vent free operation 2 State or local codes do not permit vent free...

Page 12: ...lant resistant to propane LP gas not provided electric drill with 3 16 drill bit flathead screwdriver 1 Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulato...

Page 13: ...ill reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 of water If you do not reduce incom ing gas pressure heater regulator damage could occur Install external re...

Page 14: ...lator 2 Cap off open end of gas pipe where equip ment shutoff valve was connected 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main ga...

Page 15: ...check to see if flames contact any log Ifso repositionlogaccordingto the log installation instructions in this manual Flames contact ing log will create soot It is very important to install these logs...

Page 16: ...causing property damage per sonal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell a...

Page 17: ...0 seconds release control knob Note If pilot goes out repeat steps 3 through 7 If control knob does not pop out when released contact a qualified service person or gas supplier for repairs 8 Slightly...

Page 18: ...ols the heater will shut down If pilot flame pattern is incorrect as shown in Figure 22 turn heater off see To Turn Off Gas to Ap pliance page 17 see Troubleshooting page 20 Note The pilot flame on na...

Page 19: ...older located at the end of the burner tube again Remove any large particles of dust dirt lint or pet hair with a soft cloth or vacuum cleaner nozzle Figure 23 Injector Holder On Outlet Burner Tube Bu...

Page 20: ...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 21: ...act local natural or propane LP gas company 1 Contact local natural or propane LP gas company 2 Clean burner see Cleaning and Maintenance page 18 or replace burner orifice 1 Clean burner see Cleaning...

Page 22: ...burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see page 8 4 Clean burner see Cleaning and Maintenance...

Page 23: ...see Checking 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 18 1 Locate and c...

Page 24: ...uct If they can t supply original replacement part s call DESA Heating LLC at 1 866 672 6040 When calling DESA Heating LLC have ready your name your address model and serial numbers of your heater how...

Page 25: ...8 2195 KS MO AR 816 842 3911 www washerparts com East Coast Energy Products 10 East Route 36 W Long Branch NJ 07764 732 870 8809 1 800 755 8809 www njplaza com ecep 21st Century 2950 Fretz Valley Road...

Page 26: ...www desatech com 122136 01C 26 17 14 15 3 16 18 11 10 4 2 12 8 5 16 13 7 9 1 17 17 Parts Variable Manually Controlled HL18P HL18N VSB18P VSB18N HL24P HL24N VSB24P AND VSB24N...

Page 27: ...ith Ignitor LP 1 9 122141 01 Manual Valve Outlet Tube 1 10 122146 01 Natural Gas Plate 1 11 107186 05 Injector 1 107186 06 Injector 1 107186 07 Injector 1 107186 08 Injector 1 12 098354 01 Control Kno...

Page 28: ...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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