1. Introduction
This manual provides essential instructions for the safe and efficient operation, maintenance, and troubleshooting of your DEWALT DXH75KT 75,000 BTU Kerosene Forced Air Heater. This rugged heater is designed for use in well-ventilated construction sites, barns, warehouses, and workshops, providing powerful heat output.
Key features include a two-piece split barrel for easier cleaning and maintenance, an ergonomic handle for transport, recessed controls to minimize damage, and continuous electronic ignition for reliable starting.

Image 1.1: DEWALT DXH75KT 75,000 BTU Kerosene Forced Air Heater.
2. Safety Information
WARNING: READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE USING THIS HEATER. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN FIRE, EXPLOSION, SERIOUS INJURY, OR DEATH.
- FOR OUTDOOR USE ONLY OR IN EXTREMELY WELL-VENTILATED AREAS. This heater consumes oxygen and produces carbon monoxide. Adequate ventilation is critical to prevent carbon monoxide poisoning. Never use in enclosed residential spaces, bedrooms, or living rooms.
- Always use Kerosene (K-1) as the fuel. Never use gasoline, benzene, alcohol, or any other highly flammable liquids.
- Maintain proper clearances from combustible materials. Refer to the product labels for specific distances.
- Never leave the heater unattended while operating.
- Keep children and pets away from the heater.
- Ensure the heater is placed on a stable, level, non-combustible surface.
- Do not block air intake or exhaust openings.
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65 Warning).
3. Components Overview
The DEWALT DXH75KT heater consists of the following main components:
- Heater Barrel: Houses the burner and fan assembly.
- Fuel Tank: Located at the base, holds kerosene fuel.
- Control Panel: Features recessed controls for power and temperature adjustment.
- Ergonomic Handle: For easy lifting and transport.
- Power Cord: For electrical connection (110 Volts).

Image 3.1: DEWALT DXH75KT Kerosene Heater in a work environment.
4. Setup
Follow these steps to set up your heater:
- Unpack and Inspect: Carefully remove the heater from its packaging. Inspect for any shipping damage. If damaged, do not operate and contact customer support.
- Assembly: Some minor assembly may be required, typically attaching the handle. Refer to the included assembly guide for detailed steps.
- Positioning: Place the heater on a firm, level surface in a well-ventilated area. Ensure adequate clearance from walls, ceilings, and combustible materials as specified in the safety warnings.
- Fueling: Unscrew the fuel cap. Using a clean funnel, carefully fill the tank with K-1 Kerosene only. Do not overfill. The fuel gauge will indicate the level. Securely replace the fuel cap.
- Electrical Connection: Plug the heater's power cord into a grounded 110-Volt electrical outlet. If an extension cord is necessary, ensure it is rated for outdoor use and has sufficient gauge for the heater's power requirements.

Image 4.1: Dimensions of the DEWALT DXH75KT Kerosene Heater.
5. Operating Instructions
To operate your DEWALT Kerosene Heater:
- Ensure Fuel and Power: Verify the fuel tank is adequately filled with K-1 Kerosene and the heater is properly plugged into a 110-Volt grounded outlet.
- Turn On: Locate the power switch on the control panel and switch it to the 'ON' position. The fan will start, and the continuous electronic ignition system will initiate the burner.
- Adjust Temperature: Use the thermostat control knob to set the desired heat output. The heater will cycle on and off to maintain the set temperature.
- Monitoring: Observe the heater during initial operation to ensure proper functioning. The flame should be stable and consistent.
- Shut Down: To turn off the heater, switch the power switch to the 'OFF' position. Allow the fan to run for a few minutes to cool down the unit before unplugging or moving.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater:
- Cleaning: The two-piece split barrel design allows for easier access for cleaning. Regularly clean the exterior of the heater and ensure air intake and exhaust areas are free from dust and debris.
- Fuel Filter: Periodically check and clean or replace the fuel filter to prevent clogs and ensure consistent fuel flow.
- General Inspection: Before each use, inspect the power cord for damage, check for any fuel leaks, and ensure all components are securely fastened.
- Storage: When storing the heater for extended periods, ensure the fuel tank is empty and clean. Store in a dry, safe location away from children and flammable materials.
7. Troubleshooting
If you encounter issues with your heater, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not start or ignite. | No power, no fuel, clogged fuel filter, ignition issue. | Check power connection, ensure fuel in tank, clean/replace fuel filter, contact service if ignition fails. |
| Low heat output. | Low fuel, clogged fuel filter, improper thermostat setting. | Refill fuel, clean/replace fuel filter, adjust thermostat to a higher setting. |
| Excessive smoke or odor. | Incorrect fuel type, poor ventilation, dirty burner. | Ensure K-1 Kerosene is used, improve ventilation, clean burner components. |
For persistent issues or complex repairs, contact qualified service personnel.
8. Specifications
- Brand: DEWALT
- Model: DXH75KT (also known as F340675)
- Heat Output: 75,000 BTU
- Fuel Type: Kerosene (K-1)
- Voltage: 110 Volts
- Special Feature: Adjustable Temperature
- Indoor/Outdoor Usage: Outdoor (or well-ventilated construction sites, barns, warehouses, and workshops)
- Product Dimensions: 14.25"D x 32.37"W x 17.12"H
- Mounting Type: Floor Mount
- Heating Coverage: Approximately 1875 square feet
- Burner Type: Radiant
- Min Temperature Setting: 25 Degrees Fahrenheit
- Max Temperature Setting: 95 Degrees Fahrenheit
- Assembly Required: Yes
- Included Components: Mr. Heater F340675: Dewalt 75,000 Btu Forced Air Kerosene Heater
- Manufacturer: Mr. Heater Corporation
9. Warranty
This DEWALT DXH75KT Kerosene Forced Air Heater comes with a 1-year warranty. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact the manufacturer.
10. Support
For technical assistance, replacement parts, or any questions not covered in this manual, please contact DEWALT customer support or visit their official website. Always provide your product model number (DXH75KT or F340675) when seeking support.





