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VENT-FREE GAS WALL 

HEATER

OWNER’S OPERATION AND 

INSTALLATION MANUAL

INFRARED MODELS

IWH16NLTD-2

IWH26NLTD-2

 

WARNING: If the information in this manual is not 

followed exactly, a fire or explosion may result causing 

property damage, personal injury or loss of life.
—  Do not store or use gasoline or other  flammable va-

pors and liquids in the  vicinity of this or any other 

appliance.

—  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.

•  Immediately 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 by a quali-

fied installer, service agency or the gas supplier.

 

WARNING: This appliance is equipped for Natural and 

Propane gas. Field conversion is not permitted other than 

between natural or propane gases.

IWH26NLTD-2 

Shown

Questions, problems, missing parts? 

Before returning to your retailer, call our customer service department at 

1-800-229-5647, 8:00 am - 4:30 pm EST, Monday through Friday

DRAFT

4-10-17

Summary of Contents for IWH16NLTD-2

Page 1: ...y electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call t...

Page 2: ...ual WARNING Improper installation adjustment al teration service or maintenance can cause injury or property damage Refer to this manual for correct in stallation and operational procedures For assist...

Page 3: ...er serviced Some people are more af fected by carbon monoxide than others These include pregnant women people with heart or lung disease or anemia those under the influ ence of alcohol and those at hi...

Page 4: ...y a qualified service person should service and repair heater 10 Operating heater above elevations of 4 500 feet could cause pilot outage 11 To prevent performance problems do not use propane LP fuel...

Page 5: ...CODES 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 1 NFPA 54 Available from American National St...

Page 6: ...VAPOR A BY PRODUCT OF UNVENTED ROOM HEATERS Water vapor is a by product of gas combus tion An unvented room heater produces ap proximately one 1 ounce 30 mL of water for every 1 000 BTUs 0 3 KWs of g...

Page 7: ...eathe Fresh air must enter your home All fuel burning ap pliances need fresh air for proper combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from...

Page 8: ...grills or ducts You must provide two perma nent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These...

Page 9: ...igure 4 Mounting Clearances as Viewed From Front of Heater IMPORTANT Vent free heaters add moisture to the air Although this is beneficial installing heater in rooms without enough ventilation air may...

Page 10: ...taching Mounting Bracket To Wall Use only the last hole on each end of mount ing bracket to attach bracket to wall Attach mounting bracket to a wall only in one of two ways 1 Attaching to wall stud Th...

Page 11: ...ns using 5 16 drill bit For solid walls concrete or masonry drill at least 1 deep 2 Fold wall anchor as shown in Figure 8 3 Insert wall anchor wings first into hole Tap anchor flush to wall 4 For thin...

Page 12: ...s firmly secured to wall Do not over tighten Note Do not replace front panel at this time Replace front panel after making gas connec tions and checking for leaks Figure 10 Mounting Heater Onto Mounti...

Page 13: ...void gas leak age for the gas not being used at the inlet of regulator a qualified installer or service technician must use supplied cap You will notice a color coded plungerontheinsideoftheregu lator...

Page 14: ...ile pushing in rotate the fitting clockwise until the threads engage the regulator After the fitting has been hand tightened into the regulator use a wrench to complete tightening of the fitting Insta...

Page 15: ...the heater and gassupply Gassupplierprovides externalregulatorfornaturalgas Theinstallerprovidestheexternal regulator for propane LP gas CAUTION Avoid damage to regulator Hold gas regulator with wren...

Page 16: ...lator with Vent Pointing Down Propane LP Supply Tank Equipment Shutoff Valve Ground Joint Union 3 8 NPT Pipe Nipple Tee Joint Reducer Bushing to 1 8 NPT 1 8 NPT Plug Tap Test Gauge Connection Sediment...

Page 17: ...Correct all leaks at once 6 Light heater see Lighting Instructions on page 18 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas Ap pliance page 19 1 Open equipment shuto...

Page 18: ...osition 4 Wait five 5 minutes to clear out any air Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above If you do not smell gas go to the next ste...

Page 19: ...e thermostat sensing bulb reacts to the temperature depending on housing construction TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise to the OFF position Shutting Off Burn...

Page 20: ...Code and for US instal lations the National Electrical Code ANSI NFPA NO 70 WARNING If repairing or replacing any electrical compo nent or wiring the original wire routing colorcodingandsecur ing loca...

Page 21: ...Turn Off Gas to Ap pliance page 19 see Troubleshooting pages 23 through 26 WARNING If yellow tipping occurs your heater could pro duce increased levels of carbon monoxide If the burner flame pattern...

Page 22: ...minutes 2 Remove four screws securing front panel 3 Pull front panel forward 4 Inspect burner and pilot for dust and dirt 5 Blow air through the ports slots and holes in the burner 6 Replace front pan...

Page 23: ...ife and require no further lubrication However periodic cleaning vacuuming of the appliance around the air intake and exhaust as well as the fan heater is recommended For heavy or continuous use perio...

Page 24: ...pment shutoff valve 2 Fully press in control knob while pressing ignitor button 3 Continue holding down con trol knob Repeat igniting op eration until air is removed 4 Clean ODS pilot see Care and Mai...

Page 25: ...t 1 Burner orifice is clogged 2 Inlet gas pressure is too low 1 Clean burner orifice see Care and Maintenance page 22 2 Contact local gas supplier Delayed ignition of burner s 1 Manifold pressure is t...

Page 26: ...products Heater produces un wanted odors 1 Heater is burning vapors from paint hair spray glues etc See IMPORTANTstatement page23 2 Gas leak See Warning State ment at the top of page 23 3 Low fuel sup...

Page 27: ...ontact your local gas supplier REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Call Customer...

Page 28: ...www sureheat com 200319 01C 28 7 5 6 12 18 17 2 11 3 9 8 1 16 10 14 13 15 4 19 20 PARTS MODELS IWH16NLTD 2 AND IWH26NLTD 2 IWH26NLTD 2 Shown...

Page 29: ...1 5 Burner Assembly 1 6 161139 05 161139 05 ODS Pilot 1 7 Dual Fuel Regulator 1 8 161200 01 161200 01 Inlet Cover Plug 1 9 160960 01 160960 01 Cap with Seal 1 10 Bezel T stat Control 1 11 Reflector As...

Page 30: ...____________________ ________________________________________________________________ ________________________________________________________________ _________________________________________________...

Page 31: ...____________________ ________________________________________________________________ ________________________________________________________________ _________________________________________________...

Page 32: ...ge resulting from any of the following Negligent use or misuse of the product including exposing the product to chemicals or cleaning products not approved by SHM International Corp Corrosion rust or...

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