DEWALT Kerosene Heater Instruction Manual - Manuals+ (2023)

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If you have any questions or comments, please contact us.
855-805-5745 •www.DEWALT.com
OPERATIONS MANUAL

DXH80KTHC, DXH140KTHC, DXH210KTHCX
SAVE INSTRUCTIONS

ATTENTION: READ THE INSTRUCTIONS CAREFULLY:Read and follow all instructions. Keep the instructions in a safe place for future reference. Do not allow anyone who has not read these instructions to install, adjust or operate the heater.
Definitions: Security Policies
The following definitions describe the severity level of each signal word. Please read the user manual and pay attention to these symbols.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
CAVEAT: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAVEAT: Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.
TO USE: Indicates a practice which, if not avoided, could result in property damage.
WARNING:FIRE, INHALATION, AND EXPLOSION HAZARD. KEEP SOLID FUEL SUCH AS BUILDING MATERIALS, PAPER OR CARDBOARD AT A SAFE DISTANCE FROM THE HEATER AS RECOMMENDED IN THE INSTRUCTIONS. NEVER USE HEATER IN AN AREA WHICH MAY CONTAIN FUEL OR VOLATILES IN THE AIR SUCH AS GASOLINE, SOLVENTS, THINNERS, DUST PARTICLES OR UNKNOWN CHEMICALS.
WARNING: GENERAL RISKS
FAILURE TO FOLLOW THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER MAY RESULT IN DEATH, SERIOUS PERSONAL INJURY, PROPERTY DAMAGE OR PROPERTY DUE TO FIRE, EXPLOSION, BURNS, SUFFOCATION, CARBON MONOXIDE POISONING AND/OR ELECTRIC SHOCK. ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR MAINTAIN THIS HEATER. IF YOU NEED ASSISTANCE OR INFORMATION ABOUT YOUR HEATER SUCH AS INSTRUCTIONS, LABELS, ETC., PLEASE CONTACT THE MANUFACTURER. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
WARNING:The fuels used in LPG appliances and the products of combustion of such fuels can expose you to chemicals, including benzene, which is known to cause cancer and birth defects or other reproductive harm. Visit www.P65Warnings.ca.gov for more information.
WARNING:This product can expose you to chemicals including lead and lead compounds which are known to cause cancer and birth defects or other reproductive harm. Wash hands after handling this product. For more information visitwww.P65Warnings.ca.gov.
WARNING: CARBON MONOXIDE CAN KILL YOUUSING A PORTABLE HEATER IN A CONFINED AREA MAY GENERATE DEADLY CARBON MONOXIDE.
WARNING:NOT FOR DOMESTIC OR RECREATIONAL VEHICLES.
This is a ventless portable gas heater. It uses air (oxygen) from the area in which it is used. Sufficient combustion and ventilation air must be guaranteed. See page 4.
WARNING:

• DO NOT USE GASOLINE, NAPHTHA OR VOLATILE FUELS.
• STOP HEATING AND ALLOW TO COOL BEFORE ADDING FUEL.
• ALWAYS FILL AWAY FROM AN OPEN FLAME.
• DO NOT USE EXTERNAL FUEL SOURCES.
• DO NOT USE THE HEATING APPLIANCE WHERE THERE MAY BE FLAMMABLE VAPORS OR LIQUIDS.
• DO NOT START HEATING WHEN THE CHAMBER IS HOT.
• DO NOT TURN ON THE HEATER IF THE CHAMBER HAS EXCESS FUEL.
• DO NOT PLACE COOKWARE IN THE WARMER.
• PLUG THE POWER CORD INTO A PROPERLY GROUNDED 3-POINT OUTLET.

CAUTION: For model DXH80KTHC
Nosuitable for use on wooden floors or other combustible materials. When the heater is used, it must rest on suitable insulating material at least 1 inch thick and extend 3 feet or more beyond the heater in all directions.

heater specifications

WARNING:CSA Listed for use with #1-K Kerosene only. Factory Tested: Kerosene, #1 & #2 Diesel, #1 & #2 Fuel Oil, JP8 (A-Jet Fuel)

model	DXH80KTHC	DXH140KTHC	DXH210KTHCX
burning rate	80,000 BTU/mountain (23.4 kW)	140,000 BTU/mountain (41.2 kW)	210,000 BTU/mountain (61.5 kW)
fuel tax	3,9 l/h (0,59 gal/h)	3,9 l/h (1,0 gal/h)	6,0 l/h (1,6 gal/h)
electrical entry	115 V, 60 Hz, 1 Ø, 4,0 A	115 V, 60 Hz, 1 Ø, 5,5 A	115 V, 60 Hz, 1 Ø, 5,5 A
line protection	10 A	10 A	10 A
Minimum. operating voltage	110 volts	110 volts	110 volts
pressure setting	4,2 PSIG (29 kPa)	6,8 psi (47 kPa)	8,4 PSIG (58 kPa)
maximum outlet temperature	704°C (1300°F)	704°C (1300°F)	704°C (1300°F)
fuel tank capacity	6 gallons (22.7 liters)	10 gallons (37.9 l)	15 gallons (56.8 liters)
switched on	Continuous and direct spark	Continuous and direct spark	Continuous and direct spark
spark generator	Igniter, 12 kV, 0.36 A	Igniter, 12 kV, 0.36 A	Igniter, 12 kV, 0.36 A
primary security control	solid state control	solid state control	solid state control
Certification

WARNING:Failure to follow the information in this manual could result in a fire or explosion, which could result in injury or death.

• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other device.
• Service must be performed by a qualified service center.

Minimum Clearances: Exit: 8 ft (250 cm) / Sides, Top, Back: 3 ft (91.4 cm)
WARNING: Operational Precautions
This is an oil fired forced air heater. Its intended use is primarily for temporary heating of buildings under construction, conversion or repair. Direct combustion means that all combustion products enter the heated space. Although this heater operates at very close to 100% combustion efficiency, it still produces small amounts of carbon monoxide. Carbon monoxide (called CO) is toxic. CO can accumulate in a heated space and poor ventilation can cause death. Symptoms of insufficient ventilation are:

• headache
• dizziness
• burning eyes and nose
• nausea
• dry mouth or sore throat

Be sure to follow the ventilation advice in the Safety Precautions section. Forced air means that a blower or fan forces air through the heater. Proper combustion depends on this airflow; Therefore, the heater should not be serviced, modified, or operated with parts removed or missing. Also, safety systems must not be overridden or modified to operate the heater. If the heater is operated in the presence of other people, the user is responsible for familiarizing those present with the instructions on safety precautions and the risks involved.
WARNING: Safety Precautions
THIS IS A WARMER. DO NOT ATTEMPT TO HEAT OR COOK FOOD IN THIS WARMER.

1. Recommended for use with #1-K kerosene. Factory tested for use with #2-K kerosene, #1 or #2 diesel, #1 or #2 heating oil, or JP8 Jet A fuel, and these fuels may also be used. Never use gasoline, biodiesel, crankcase drain oil, naphtha, thinner, alcohol, or other flammable fuels.
2. Carefully inspect heater for damage. DO NOT operate a damaged heater.
3. DO NOT modify or operate a heater that has been modified from its original condition.
4. Suitable for outdoor and indoor use where there is adequate ventilation. Never use it in areas where people normally live. It is not suitable for use in the weather.
5. When used in a well-ventilated area, allow a minimum of 2 square feet (0.19 m²) of opening near floor level and 2 square feet (0.19 m²) near the ceiling directly outside. Enlarge the marked air openings for each auxiliary heater.
6. Always keep combustible materials, such as paper and wood, at least 8 feet (250 cm) from the heater outlet and 3 feet (91.4 cm) from the top, sides, and inlet. Lay down 10 ft (3.0 m) of tarp or plastic covers and secure them to prevent flapping movements.
7. Caution: Due to high exhaust and surface temperatures, adults and children should keep distance to avoid burns or clothing inflammation. Do not touch. Keep children, clothing and flammable objects away.
8. Install the heater so that it is not directly exposed to splashing water, rain and/or water.
9. Never use in normally occupied areas and/or where children may be present.
10. Operate only on a stable, level surface.
11. Do not use pipes. Do not restrict entry or exit.
12. Use only with the specified electrical power. Electrical connection and grounding must comply with the National Electrical Code - ANSI/NFPA 70 (USA) and CSA C22.1 Canadian Electrical Code, Part 1 (Canada).
13. Use only a properly grounded 3-prong plug or extension cord.
14. Do not move, handle, or perform maintenance while hot or running.
15. Use only in accordance with local, state (provincial) or national requirements, ordinances and regulations.

operations manual

UNPACKING

1. Take the heater out of the box.
2. Remove any protective material that may have been attached to the heater for shipping.
3. Check heater for possible shipping damage. If you find any damage, contact the manufacturer immediately at 855-805-5745.

OPTIONAL MAP CART
Each heater comes with an optional cable carrier kit containing screws, nuts, and instructions.
WHEEL AND HANDLE ASSEMBLY
Casters and handles are in the shipping box along with mounting hardware. The wheels, axle, and mounting hardware are all in one package.

1. The handles are pre-assembled on the tank. The carry handle and kickstand simply click into place.
2. To assemble the wheels, first install one of the large locknuts on the end of the axle.
3. Slide a wheel onto the axle next to the nut, then a spacer.
4. Slide the partially assembled axle through the frame of the wheel stand.
5. Slide the spacer onto the axle next to the wheel mount.
6. Slide the wheel and then the last large locknut onto the axle. Using two adjustable wrenches, hold and tighten both nuts. DO NOT EXCEED SPEED
7. Install the caps over the lock nuts to complete the wheel installation.

PREPARATION FOR OPERATION

1. Check heater for possible shipping damage. If something is found, immediately
   Contact the manufacturer at 855-805-5745.
2. Follow all WARNINGS and Cautions in this manual.
3. Fill the fuel tank with clean kerosene. In extremely cold weather, condensation may form in the tank and it is recommended to add one tablespoon of antifreeze for every gallon (4 liters) of fuel in the tank. Use at least 2 gallons (8 liters) of fuel when filling the heater. Make sure the heater is level and not cluttered. Use a funnel or a can with a long spout.
4. Locate heater a safe distance from combustible materials.

IMPORTANT:Drain the fuel before filling the fuel tank for the first time or after a long period of storage.
deposit of moisture or condensation.

START HEATING

1. Turn the thermostat to the lowest setting and make sure the power switch is in the off position.
2. Plug heater into a 115V, 60Hz, 1ø grounded outlet.
3. Turn on the heater by sliding the switch to the "on" position (the light indicates that the switch is in the "on" position).
4. Adjust the thermostat to the desired setting. The heater turns on/off when heat is needed.

• In cold weather (less than 10°F [-12.2°C]), starting can be improved by placing a finger over the bleed hole of the pump adjusting screw until the heater ignites.
• This device is equipped with an interrupt circuit. The reset is built into the "On/Off" switch. If the device does not start, turn the switch to "off", wait 5 minutes, and then turn the switch on.
• EXTENSION CORD REQUIREMENTS: Up to 100 ft (30.5 m) use 16 AWG conductor. 101' - 200' (30.5 - 61.0 m) use 14 AWG conductors.

HEATING OFF
Slide the "On/Off" switch to the "Off" position. Disconnect heater from power source for extended shutdown.RESTART HEATING AFTER SAFETY SHUTDOWN

1. Move the switch to the "OFF" position.
2. wait 5 minutes
3. Start again

maintenance and storage

CAVEAT: To avoid personal injury, unplug heater before performing maintenance. For maximum efficiency and trouble-free operation, perform the following regular maintenance, cleaning, and inspection tasks.
ADJUST THE PUMP PRESSURE
Due to differences in fuel viscosity and normal component wear, it may be necessary to adjust the pump pressure on this heater.

ADJUSTMENT PROCEDURE

1. Fill the fuel tank.
2. start heating up
3. Locate the pressure adjustment screw, located on the back of the power supply and accessible through the heater handle.
4. Remove the rubber cap over the fuel pressure adjustment screw.
5. Using a screwdriver, turn the pump pressure adjustment screw:
   • clockwiseto increase pump pressure
   • counter-clock wiseDecrease pump pressure With the pressure gauge installed (if available), you can calibrate the pressure quantitatively. See specification table on page 3 for manufacturer's recommended pump pressures.
6. Desired quality burner characteristics are that the nose cone in the combustion chamber should be cherry red in color with no dark spots and the flame should not extend beyond the nose cone.

INCORRECT PRINT SETTINGS
Problem:
The heater does not have a strong, even flame. The heater smokes and spits out raw fuel.
The nose cone does not turn cherry red.
Attitude:
Pump pressure is too low. Turn the adjustment screw clockwise to increase pump pressure.
Problem:
The flame extends beyond the end of the heating element.
Attitude:
The pump pressure is too high. Turn the adjustment screw counterclockwise to decrease pump pressure.

daily maintenance schedule

1. USUALLY🇧🇷 Carry out a general visual inspection of the heater in search of loose or damaged parts. Check nuts and bolts to make sure they are not loosening due to vibration or rough handling. Damaged parts must be repaired or replaced before using the heater again. Check the operation of the heater to ensure that it is operating normally (see the Maintenance section for a description of normal operation).
   2.FILTER🇧🇷 Dirty air or fuel filters cause an imbalance in the air-fuel mixture. The best indication of this condition is an increase in odors or difficulty starting the heater. This heater should never be operated without filters installed. If necessary, clean the filters as described in "500 hours" and "Every year".
   schedules".

500 hour maintenance schedule

1. AIR INTAKE FILTER🇧🇷 Remove and wash the filter element with a mild detergent, dry it well and replace it. Do not lubricate the filter element. If your heater is used in very dusty or dirty places, clean it as often as necessary (approximately every 50 hours).
2. REMOVE DUST🇧🇷 Clean the heater twice a season (more often in dusty conditions). Blow accumulated dust from the transformer, burner, motor, and fan blades with compressed air. Wipe the area with a clean, dry cloth. Inspect the area to ensure all foreign material has been removed, particularly around the burner and combustion area. Safety glasses must be worn when using compressed air.
3. CAD CELL🇧🇷 Clean the glass part of the Cad cell with a soft and dry cloth.
4. ONE HUNDRED🇧🇷 Fuel residue and carbon buildup from the compressor vanes will eventually fill the passages in the nozzle, resulting in reduced air and fuel flow. Pressure will gradually build up, resulting in improper fuel-air mixture and excessive odor and smoke. In this case, replace the fuel nozzle.
5. FUEL TANK🇧🇷 Clean twice a season (clean twice a month during busy periods). Drain and flush the fuel tank with clean fuel oil. Be sure to properly dispose of used fuel.

annual maintenance plan

1. AIR OUTLET FILTER🇧🇷 Remove the air outlet filter and gently tap the dirty side on a solid object to dislodge the dirt. Compressed air or liquids should not be used to clean this filter. Put the clean filter back into the filter body in the same position it was removed. If the filter appears extremely dirty, replace it with a new filter of the same type. When reinstalling the filter cover, make sure the gasket is tight and the filter cover screws are tight to prevent air leakage.
2. FUEL FILTER🇧🇷 Remove the fuel filter from the fuel line and bleed compressed air through the filter in the opposite direction of fuel flow. Safety glasses must be worn when using compressed air.
3. AIR AND FUEL LINES🇧🇷 If the air or fuel lines are removed during cleaning, make sure all connections are tight before operating the unit.

store

Store the heater in a dry place, free from smoke and dust. Clean the heater at the end of each heating season as described in the MAINTENANCE section. Drain and flush the fuel tank with clean fuel. The manufacturer recommends that the tank be completely filled with fuel during long-term storage to minimize condensation in the tank. It is recommended that kerosene be stored only in containers marked "KEROSENE".

maintenance

CAVEAT: A dangerous condition can result from the use of a heater that has been modified or that is not working properly. If the heater works normally:

• The flame is terminated in the heater.
• The flame is essentially yellow.
• There is no unpleasant strong odor, burning eyes or other physical discomfort.
• There is no smoke or soot inside or outside the heater.
• No unplanned or unexplained heater shutdowns.

Troubleshooting

High Limit Switch Open Circuit

1. Make sure the heater has cooled down, turn the key switch to the "OFF" position, wait 5 minutes and try again.

Sparks calling to flame but none or slow engine running

1. Check the motor wiring (according to the wiring diagram in the manual)
2. Make sure the pressure gauge is present and not damaged.
3. Adjust the pressure for proper heating operation according to the manual
4. With heater disconnected from AC power, rotate fan clockwise to ensure motor is free
5. Remove the air filter case from the engine and inspect the pump impeller for damage. If it is damaged, replace the rotor assembly.
6. If the wiring is correct, the pump impeller is OK, and the motor does not rotate freely, replace the motor or power supply.
7. If the problem persists, replace the oil flame control assembly.
8. Check for arcing from the electrode array to the combustion cylinder.
9. Check the continuity of the cad cell.

no spark

1. Verify the length and gauge of the correct amplifier extension cord. Draw (see page 5)
2. Check wiring to igniter (per wiring diagram in manual)
3. Check the distance between the electrode probes (2.3 - 3 mm)
4. Still no spark, replace igniter assembly
5. Replace oil flame monitor assembly

Abnormal engine operation: engine overheats or stalls

1. Engine RPM too low (engine should run at 3450 rpm) - Replace engine
2. With heater disconnected from AC power, rotate fan clockwise to ensure motor is free
3. Remove the air filter case from the engine and inspect the pump impeller for damage. If it is damaged, replace the rotor assembly.
4. If the wiring is correct, the pump impeller works fine, and the motor does not rotate freely, replace the motor or power supply.
5. Replace oil flame monitor assembly

Cannot detect flame.

1. Check wiring to cad cell (per wiring diagram in manual)
2. Clean cadcell photocell
   a) Slide the ch cell out of the ch cell holder
   b) Push the photocell out of the black rubber casing of the cadet by pressing the 2 purple wires
   c) Clean the photocell with a soft cloth and isopropyl alcohol
   d) Replace the photocell in the cad cell body and reinstall it in the bracket.
   e) Test heater
3. If the heater still does not work, replace the cell every
4. Replace oil flame monitor assembly

flame control failure

1. Check wiring at heater (per wiring diagram in manual).
2. Replace the oil flame monitor assembly.

SPARE PARTS LIST

*140K displayed

CIRCUIT DIAGRAM

CAVEAT: The parts lists and circuit diagram show the heater as it is built. Do not use any heater other than the one shown. The heating capacity is influenced by the air pressure setting. If you are not sure about the air pressure setting, please check it. A malfunctioning heater should be repaired, but only by a trained and experienced service technician.

OPERATIONS MANUAL
kerosene air heaterDXH80KTHC, DXH140KTHC, DXH210KTHCX

Caveat

USE ONLY MANUFACTURER'S REPLACEMENT PARTS. USE OF OTHER PARTS COULD RESULT IN INJURY OR DEATH. REPLACEMENT PARTS ARE AVAILABLE DIRECTLY FROM THE FACTORY ONLY AND MUST BE INSTALLED BY A QUALIFIED SERVICE MANAGER.

ORDER INFORMATION TO SHARE:
PURCHASE: Accessories can be purchased from any local DeWALT® dealer or direct from the factory

FOR INFORMATION ABOUT THE SERVICE:

Call toll free 855-805-5745www.DEWALT.com
Our office hours are Monday through Friday, 8:00 am to 5:00 pm EST.
Please include the model number, date of purchase, and a description of the problem in all communications.

LIMITED WARRANTY

DeWALT® warrants its heaters and accessories to be free from defects in materials and workmanship for a period of 2 years from the date of purchase. DeWALT® will repair or replace this product free of charge if proven defective within the 2-year period and will be returned to DeWALT® at the customer's expense with proof of purchase within the warranty period.

DeWALT®, GUARANTEED TOUGH® and the yellow and black color scheme are trademarks of DeWALT Industrial Tool Co. used under license. ©2020DeWALT. EGI/Enerco Group Inc. Licensed by DeWALT Industrial Tool Co.

UL733, CSA B140.8, CSA B140.9.3

If you have any questions or comments, please contact us.
If you have any questions or comments, please contact us.
OWNER'S MANUAL HOW TO USE THE OWNER'S MANUAL
DXH80KTHC, DXH140KTHC, DXH210KTHCX
SAVE THESE INSTRUCTIONS SAVE THESE INSTRUCTIONS

WARNING: READ THE INSTRUCTIONSCAREFULLY:
Read and follow all instructions. Keep the instructions in a safe place for future reference. Do not allow anyone who has not read these instructions to install, adjust or operate the heater.

Documents/Resources

references

• Official DEWALT® Power Tools Site | Guaranteed Robust®
• P65warnings.ca.gov