Important Safety Information
Please read this entire manual before installing or using this heater. Failure to follow these instructions could result in electric shock, fire, property damage, or personal injury.
- WARNING: Risk of electric shock. Disconnect power before installation or servicing.
- CAUTION: High temperature, risk of fire. Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and curtains at least 3 feet (0.9 m) from the front of the heater and away from the sides and rear.
- Do not install in bathrooms or other wet locations unless specifically rated for such use.
- Ensure proper grounding to prevent electrical shock.
- Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage the heater.
- To prevent a possible fire, do not block air intakes or exhaust in any manner.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces.
- Close supervision is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
Product Overview
The KING W2420-W W Series Wall Heater is an efficient and compact heating solution designed for various indoor spaces. It features a NiChrome heating element for instant heat and a durable construction for long-lasting performance.
Key Features:
- Economically Built for Maximum Comfort
- NiChrome Open Coil Element for Quick Heat Transfer
- Dual Wattage Design (2000W / 240V model)
- C-Frame Motor
- 4-Blade Aluminum Fan
- Patented Smart Limit Protection
- Wall Can w/ QuickSet Stud Tabs
- Proudly Made in the USA with U.S. & Global Materials
- 1-Year Limited Warranty

Figure 1: Front view of the KING W2420-W Wall Heater, showcasing its white grille and compact design.

Figure 2: Angled view of the KING W2420-W Wall Heater, highlighting its side profile and internal components.

Figure 3: Diagram illustrating key product features and components of the KING W Series Wall Heater, including the heater housing, rough-in can, and finned grille.
Product Video:
Video 1: An overview of the KING W Series Wall Heater in Bright White, demonstrating its compact size and suitability for various applications like apartments and multi-family buildings.
Installation Instructions
Proper installation is crucial for the safe and efficient operation of your KING W2420-W Wall Heater. It is highly recommended that installation be performed by a qualified electrician in accordance with all local and national electrical codes.
For detailed, step-by-step installation instructions, please refer to the official Installation Manual (PDF).
General Installation Guidelines:
- Ensure the power supply is disconnected at the circuit breaker before beginning any installation work.
- Select an appropriate wall location that meets clearance requirements for combustible materials.
- Install the wall can securely into a standard 2" x 4" wall.
- Connect the heater wiring to the power supply according to the wiring diagram provided in the full manual.
- Mount the heater assembly into the wall can and secure the grille.
- This heater is designed for use with a wall thermostat or an in-built thermostat (sold separately).

Figure 4: Dimensions of the KING W2420-W Wall Heater, showing its compact size for easy integration into wall spaces.
Operating Instructions
Once properly installed and connected to power, the KING W2420-W Wall Heater is ready for operation. This heater requires an external thermostat for temperature control.
- Power On: Ensure the circuit breaker supplying power to the heater is in the "ON" position.
- Thermostat Control: Adjust the desired temperature setting on your wall-mounted or in-built thermostat. The heater will activate when the room temperature falls below the set point and deactivate once the desired temperature is reached.
- Initial Operation: During the first few minutes of operation, the heater may emit a slight odor. This is normal and will dissipate quickly as manufacturing oils burn off.
- Airflow: Do not obstruct the air intake or exhaust grilles. Maintain clear space around the heater for optimal performance and safety.
The patented Smart Limit Protection technology will automatically shut off the heater if it senses potential hazards such as a clogged element or blocked airflow, ensuring safe operation.
Maintenance
The KING W2420-W Wall Heater is designed for minimal maintenance. However, periodic cleaning and inspection are recommended to ensure optimal performance and longevity.
- Before Cleaning: Always disconnect power to the heater at the main circuit breaker before performing any maintenance or cleaning.
- Exterior Cleaning: Use a soft, damp cloth to wipe down the exterior surfaces of the heater. Do not use abrasive cleaners, solvents, or spray directly onto the heater.
- Grille Cleaning: Carefully vacuum the grilles to remove any dust or lint accumulation. Ensure the fan blades are free from obstructions.
- Annual Inspection: It is advisable to have a qualified technician inspect the heater annually to check electrical connections and overall condition.
- Do not attempt to lubricate the motor; it is permanently lubricated.
Troubleshooting
If your KING W2420-W Wall Heater is not operating correctly, consult the following common issues and solutions before contacting customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power supply; Circuit breaker tripped; Thermostat set too low; Smart Limit Protection activated. | Check circuit breaker; Ensure thermostat is set above room temperature; Clear any obstructions around the heater and allow it to cool down for a few minutes. |
| Heater produces insufficient heat. | Incorrect wattage setting (if applicable); Room size too large for heater capacity; Drafts in the room. | Verify correct wattage setting; Ensure heater capacity matches room size; Seal drafts. |
| Unusual noise from heater. | Loose fan blade; Debris in fan; Motor issue. | Disconnect power and inspect fan for debris or looseness. If noise persists, contact a qualified technician. |
| Odor during operation. | New heater burn-off; Dust accumulation on heating element. | Normal for first use; Clean dust from heating element (after disconnecting power and cooling). |
If the problem persists after attempting these solutions, please contact KING customer support or a qualified electrician.
Technical Specifications
| Feature | Detail |
|---|---|
| Brand | KING |
| Model Number | W2420-W |
| Wattage | 2000 watts |
| Voltage | 240 Volts |
| Amperage | 8.33 Amps |
| Color | White |
| Form Factor | Vertical Wall Heater |
| Indoor/Outdoor Usage | Indoor |
| Product Dimensions | 10.38"D x 10.38"W x 4"H |
| Recommended Uses | Garage, Home, Office |
| Mounting Type | Wall Mount |
| Heating Coverage | up to 200 square feet |
| Fuel Type | Electric |
| Material | Steel |
| Item Weight | 3.94 pounds |
| Special Feature | Patented Smart Limit Protection |
Warranty and Customer Support
Your KING W2420-W Wall Heater comes with a 1-Year Limited Warranty covering all product components from the date of purchase.
For warranty claims, technical assistance, or any questions regarding your heater, please contact KING customer support:
- Website: www.king-electric.com (Note: This is a generic placeholder, please refer to official product documentation for actual contact details.)
- Phone: Refer to your product packaging or the official KING website for contact numbers.
Please have your model number (W2420-W) and purchase date available when contacting support.







