DR. INFRARED HEATER DR-910M
Dr. Infrared DR-910M 10000-Watt Heavy-Duty Hardwired Shop Garage Heater with Cart Instruction Manual
Brand: DR. INFRARED HEATER | Model: DR-910M
1. Introduction
The Dr. Infrared DR-910M is a robust 10000-watt, 240-volt heavy-duty hardwired electric heater designed for efficient heating in large spaces such as garages, workshops, warehouses, and various commercial environments. This unit provides instant, clean heat and can function as either a primary or auxiliary heat source. The DR-910M model is equipped with a durable cart for convenient portability, allowing for easy relocation within your workspace. It features an adjustable thermostat for precise temperature control and adjustable louvers to direct airflow effectively.

Image 1: The Dr. Infrared DR-910M heater highlighting its safe, comfortable, efficient, and portable heating capabilities.
2. Safety Information
WARNING: Read and understand all instructions before using this heater. Failure to follow these instructions may result in electric shock, fire, property damage, or serious injury.
- This heater is hardwired and does not include a power cord. Use 6 AWG copper wires for connection.
- The unit is UL/CUL listed, ensuring compliance with safety standards.
- CAUTION: HOT SURFACE. Do not touch the heater's heating elements or grille during operation or immediately after shutdown.
- Do not locate the heater against walls or behind drapes or furniture. Maintain adequate clearance from combustible materials.
- Risk of electric shock. Do not open the unit. There are no user-serviceable parts inside. All servicing should be performed by qualified personnel.
- Consult a licensed electrician for proper installation and wiring to ensure safety and compliance with local electrical codes.
3. Product Overview & Features
The DR-910M is engineered for durability and performance, featuring:
- Heating Elements: Spiral steel metal sheath electric heating elements provide uniform heat distribution and long product life.
- Fan System: A large, matched, dynamic fan ensures maximum airflow with minimal turbulence and noise, effectively distributing warmth.
- Motor: Equipped with a heavy-duty, totally enclosed, thermally protected, and permanently lubricated ball bearing motor, requiring minimal maintenance.
- Thermostat: Built-in adjustable thermostat allows setting desired temperatures between 37°F and 104°F.
- Airflow Control: A rugged stamped steel front cover with five adjustable louvers for easy and precise airflow direction.
- Portability: Features a sturdy cart with wheels for convenient mobility.
- Finish: Durable white epoxy paint.

Image 2: The Dr. Infrared DR-910M heater on its cart, illustrating its design and heat projection.

Image 3: Detailed view of the DR-910M's portable design, including the hand push cart and glide casters for effortless movement.

Image 4: Illustration of the heater's fully enclosed heavy-duty motor, emphasizing its thermal and overheating protection.
4. Setup & Installation
The DR-910M is a hardwired unit. Professional installation by a licensed electrician is recommended to ensure safety and compliance with all local electrical codes.
4.1 Electrical Wiring
- Ensure power is OFF at the main circuit breaker before beginning any wiring.
- This 10000-watt, 240-volt heater requires 6 AWG copper wires for connection.
- Connect the black wire to L1.
- Connect the red wire to L2.
- Connect the green wire to ground.
- Ensure all wire connections are securely tightened.
4.2 Placement
Position the heater on a stable, level surface using its integrated cart. Ensure adequate clearance from walls, drapes, furniture, and any other combustible materials as outlined in the safety information.
5. Operating Instructions
The DR-910M features simple mechanical controls for ease of use.

Image 5: The mechanical control panel of the DR-910M, showing the power switch and temperature dial.
- Power On/Off: Use the rocker switch labeled 'ON' and 'OFF' to power the unit.
- Temperature Setting: Rotate the temperature setting dial to select your desired temperature. The thermostat allows for a range between 37°F and 104°F. The heater will cycle on and off to maintain the set temperature.
- Adjusting Airflow: Utilize the five adjustable louvers on the front grille to direct the heated airflow to specific areas as needed.

Image 6: Close-up of the adjustable louvers, demonstrating how to control airflow direction.
6. Maintenance
The DR-910M is designed for minimal maintenance due to its heavy-duty, permanently lubricated motor.
- Cleaning: The manufacturer recommends dry cleaning for the unit. Ensure the heater is unplugged and completely cool before cleaning.
- Motor: The motor is permanently lubricated and requires no additional lubrication.
- General Inspection: Periodically inspect the unit for any signs of damage, loose connections, or obstructions to the airflow.
7. Troubleshooting
If your Dr. Infrared DR-910M heater is not operating as expected, consider the following common issues:
- No Power: Check the circuit breaker to ensure it has not tripped. Verify that the unit is properly hardwired and all connections are secure.
- No Heat Output: Ensure the thermostat is set to a temperature higher than the current room temperature. Check for any obstructions to the airflow.
- Inadequate Heating: Confirm the heater's wattage is appropriate for the size of the space. Ensure doors and windows are closed to prevent heat loss.
- Unusual Noises: While the fan is designed for minimum noise, excessive or unusual noises may indicate an issue. Discontinue use and contact support if persistent.
- Overheating: The unit has thermal protection. If it shuts off unexpectedly, ensure it is not obstructed and has proper ventilation. Allow it to cool down before restarting.
For issues not resolved by these steps, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | DR. INFRARED HEATER |
| Model Number | DR-910M |
| Power Output | 10000 Watts |
| Voltage | 240 Volts |
| Amperage | 41.67 Amps |
| Phase | Single Phase |
| Temperature Range | 37°F - 104°F |
| Product Dimensions (D x W x H) | 24" x 21" x 33" |
| Item Weight | 48 pounds |
| Color | White |
| Form Factor | Free-standing heater with cart |
| Safety Certifications | UL/CUL listed |
| Special Features | Adjustable Thermostat, Adjustable Louvers, Overheat Protection |
| Recommended Uses | Commercial, Garage, Restaurant, Shop |
| Motor | Heavy duty fully enclosed, thermally protected, permanently lubricated |
| Care Instructions | Dry Clean |
9. Warranty & Support
The Dr. Infrared DR-910M comes with a 1-year limited manufacturer parts and labor warranty.
For any questions, technical assistance, or warranty claims, please refer to the contact information provided in your product packaging or visit the official Dr. Infrared Heater website.

Image 7: Customer support information, including a QR code for product reviews.
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