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4.  Locate heater at a safe distance from combustible materials. Models 

DXH50K & DXH75K are not suitable for use on wood floors or other 
combustible materials. When used, the heater should rest on suitable 
insulating material at least 1 inch thick and extending 3 ft. or more beyond 
the heater in all directions.

HEATER START UP

1. 

DXH50K, DXH75KT, DXH135KT, DXH185KT:

 Turn thermostat to lowest 

setting, make sure “ON/OFF” switch is “OFF” position. Plug the heater into 
a grounded 115V, 60 Hz, 1 Ø outlet. Turn thermostat to highest setting. 
Start heater by pushing toggle switch to “I” position (light signifies switch is 
in “I” position). Adjust thermostat to desired setting. Heater will cycle on/off 
as heat is required.

 

EXTENSION CORD REQUIREMENTS: Up to 100’ (30.5m) use 16 awg. 
conductor. 101’ - 200’ (30.5 - 61.0m) use 14 awg. conductor.

For all models: 

•  In cold weather (below 10° F), starting may be improved by holding a 

finger over the vent hole of the pump adjustment screw cap until the 
heater starts. 

•  This unit is equipped with an interrupt circuit. The reset is integrated into 

the “I/O” switch. If the unit does not start, toggle the switch to “O”, wait 5 
min. and toggle the switch to “I”.

HEATER SHUT DOWN

DXH50K, DXH75KT, DXH135KT, DXH185KT: 

Push “ON/OFF” switch to “OFF” 

position. For extended shutdown, unplug heater from power source.

RESTART AFTER SAFETY SHUTDOWN

DXH50K, DXH75KT, DXH135KT, DXH185KT: 

Toggle switch to “OFF” position, 

wait 5 minutes. Restart.

ASSEMBLY 

(For 135,000 and 185,000 BTU/hr models only, see figure 1, page 9.)

Wheels and handles are found in the shipping carton along with mounting hardware. 
The wheels, axle and mounting hardware are in a package. Tools required are a 
5/16” nut driver, 3/8” open or adjustable wrench and standard pliers.

1.   Assemble the wheels onto the wheel support as shown.

2.   Install one of the cotter pins into the hole on one end of axle.

3. 

Slide the large washer, then wheel onto the axle next to the cotter pin.

4. 

Slide the spacer onto the axle next to the wheel.

5. 

Slide the partially assembled axle through the wheel support frame.

6. 

Slide the spacer onto the axle next to the wheel support.

7. 

Slide the wheel then large washer onto the axle and hold in place with the 
remaining cotter pin.

8. 

Install the caps over the larger washers to finish the wheel assembly.

9.  

Slide leg support into place.

10.  Slide upper handle into place.

11.   Attach drape guard with included screws. (Canadian requirement).

PREPARING FOR OPERATION

1.  Check the heater for possible shipping damage. If any is found, 

immediately

 

contact the manufacturer at 855-805-5745.

2.  Follow all of the “Precautions”. 

3.  Fill the fuel tank with clean kerosene. In extremely cold weather, condensation 

may develop in the tank and it is recommended that a tablespoon of de-icer be 
added for each gallon (4 liters) of fuel in the tank. When filling the heater, use at 
least 2 gallons (8 liters) of fuel. Be sure heater is level and do not overfill. Use a 
funnel or can with a long fill spout.

IMPORTANT: Before filling fuel tank the first time or after extended 

storage periods, drain the fuel tank of any moisture or condensation.

Maintenance and Storage

                        

To prevent personal injury, unplug the heater from the wall outlet 

before maintenance. 

For maximum efficiency and trouble-free service, make the following periodic 
maintenance, cleaning and inspections.

   WARNING:

Summary of Contents for DXH135KT

Page 1: ...ructions Place instructions in a safe place for future reference Do not allow anyone who has not read these instructions to assemble adjust or operate the heater VEUILLEZ LIRE ATTENTIVEMENT LES INSTRUCTIONS Lisez et observez toutes les instructions Conservez ces instructions dans un endroit sécuritaire pour vous y référer ultérieurement Interdisez à quiconque n ayant pas lu les présentes directive...

Page 2: ...ons Never use the heater in spaces which do or may contain volatile or airborne combustibles or products such as gasoline solvents paint thinner dust particles or unknown chemicals WARNING RISK OF FIRE OR EXPLOSION Do not use gasoline naphtha or volatile fuels Stop heater before adding fuels Always fill outdoors away from open flame Do not use external fuel source Do not operate heater where flammabl...

Page 3: ...y of this or any other appliance WHAT TO DO IF YOU SMELL GAS Open windows DO NOT try to light any appliance DO NOT operate any electrical switches DO NOT use any telephone in building Immediately call the local gas supplier from an outside telephone Follow the gas supplier s instructions DO NOT touch any electrical switch do not use any phone in your building If you cannot reach your gas supplier ...

Page 4: ... at 855 805 5745 Safety Precautions 1 Certified for use with No 1 K kerosene fuel Factory tested for use with No 2 K kerosene No 1 or No 2 Diesel No 1 or No 2 fuel oil or JP8 Jet A fuel and these fuels may be used as well Never use gasoline oil drained from crank cases naphtha paint thinners alcohol or any other highly flammable fuels Only store kerosene in containers marked Kerosene or Kerosine 2...

Page 5: ...g with mounting hardware The wheels axle and mounting hardware are in a package Tools required are a 5 16 nut driver 3 8 open or adjustable wrench and standard pliers 1 Assemble the wheels onto the wheel support as shown 2 Install one of the cotter pins into the hole on one end of axle 3 Slide the large washer then wheel onto the axle next to the cotter pin 4 Slide the spacer onto the axle next to...

Page 6: ...r for loose or damaged parts Check nuts and bolts to insure against looseness caused by vibration or rough handling Damaged parts should be repaired or replaced before using heater again Check heater operation to be sure it is operating normally See Servicing section for description of normal operation 2 FILTERS Dirty air or fuel filters will cause an imbalance in the air fuel mixture The best ind...

Page 7: ...ections are tight before operating unit STORAGE Store the heater in a dry location free from fumes or dust At the end of each heating season clean the heater as described in the MAINTENANCE section Drain and flush the fuel tank with clean fuel The manufacturer recommends completely filling the tank with fuel for extended storage to minimize condensation inside the tank SERVICING A hazardous condit...

Page 8: ...uirements on page 5 2 Check wiring to igniter per wiring schematic in manual 3 Check gap between electrode probes 2 3 3 mm 4 Still no spark replace igniter assembly 5 Replace oil flame control assembly Abnormal Motor Operation 1 Motor speed too low Motor should operate at 3450rpm except 50K at 1550rpms Replace motor Motor overheats or Stops 2 With heater disconnected from AC source rotate fan cloc...

Page 9: ...22113 Front Leg 6 22168 22184 Axle 7 40981 40981 Wheel Assembly 8 28749 28749 Large Retainer Washer 9 28750 28750 Cotter Pin 10 28751 28751 Hub Cap 11 21897 21897 Wheel Spacer 12 21906 21907 Drape Guard 28787 28787 Hardware Kit DXH50K DXH75K 12 21905 21905 Drape Guard Not Shown Required in Canada PARTS LIST Handle Wheel Ass y Figure 1 Handle and wheel assembly for DXH135K and DXH185K only Handle W...

Page 10: ...s Rotor Rotor Vanes and Rotor Drive 30 F221887 F221887 F221887 F221887 Filter Kit Includes Inlet Filter Outlet Filter Gasket Fuel Filter Screen 34 F266842 F266842 F266842 F266842 Pump Adjustment Kit Includes Plug Adj Screw Spring and Ball Bearing 39 40819 40819 40820 40820 Inlet Grill Assembly 40 40821 40821 40822 40824 Bottom Half Shell 41 26227 26227 Snap Bushing 42 43 40825 40953 40826 40826 Co...

Page 11: ...English 11 43 44 49 45 1 2 3 4 16 15 8 7 17 9 12 11 13 14 18 40 59 60 57 58 55 68 70 65 56 66 50 46 48 61 47 67 19 24 6 30 29 34 39 20 23 5 41 ...

Page 12: ...TION REGARDING SERVICE Please call Toll Free 855 805 5745 www dewalt com Our office hours are 8 00 AM 5 00 PM EST Monday through Friday Please include the model number date of purchase and description of problem in all communication LIMITED WARRANTY DeWalt warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of purchase DeWalt wi...

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