1. Introduction
The Marley QTS1504T Toe Kick Heater is designed for discreet heating in areas with limited wall space, such as kitchens, bathrooms, and offices. Its compact design allows for installation in toe-kick areas under cabinets, stair risers, or bathroom vanities, providing efficient warmth without occupying valuable floor or wall space.

Image 1: Front view of the Marley QTS1504T Toe Kick Heater, showing the black grille and thermostat dial.
2. Safety Information
Read all instructions before installing or using this heater. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Electrical Safety: This heater operates on 240 Volts. Installation must be performed by a qualified electrician in accordance with all local and national electrical codes. Ensure the power supply is disconnected before any installation or maintenance.
- Placement: Do not install the heater directly below a permanent electrical outlet. Maintain adequate clearance from combustible materials such as furniture, curtains, and bedding.
- Overheating Protection: The heater is equipped with a thermal cutout to prevent overheating. If the heater shuts off unexpectedly, allow it to cool down before attempting to reset or restart.
- Do Not Cover: Never cover the heater or block its air intake/output grilles. This can cause overheating and fire.
- Water Exposure: Do not use this heater in wet or moist locations. Avoid contact with water.
3. Package Contents
Upon unpacking, verify that all components are present and undamaged. The Marley QTS1504T Toe Kick Heater package typically includes:
- Marley QTS1504T Toe Kick Heater Unit
- Installation Hardware (screws, brackets, etc.)
- User Manual / Installation Guide
If any parts are missing or damaged, do not attempt to install or operate the heater. Contact Marley customer support for assistance.
4. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your toe kick heater. It is highly recommended that installation be performed by a qualified electrician.
4.1. Location Selection
Choose a suitable location such as a toe-kick space under kitchen or utility room cabinets, a soffit area above cabinets, stair risers, or under a bathroom vanity. Ensure the chosen location allows for proper air circulation and is free from obstructions.
4.2. Electrical Requirements
The Marley QTS1504T heater requires a 240 Volt, 15 Amp dedicated circuit. Ensure your electrical system can support these requirements. All wiring must comply with local and national electrical codes.
4.3. Mounting the Heater
The heater features a 3-piece design for simplified installation. Create an opening in the chosen location that matches the heater's dimensions. Securely mount the heater unit using the provided hardware, ensuring it is level and stable. Connect the electrical wiring as per the detailed instructions in the included installation guide. Ensure all connections are tight and secure.

Image 2: Dimensions of the Marley QTS1504T Toe Kick Heater, measuring 8.88 inches deep, 15.38 inches wide, and 3.62 inches high.
5. Operating Instructions
Once properly installed and connected to power, your Marley QTS1504T Toe Kick Heater is ready for operation.
5.1. Powering On/Off
The heater is controlled by an integrated thermostat. To activate the heater, turn the thermostat dial to your desired heat setting. The unit will begin to produce heat. To turn off the heater, rotate the thermostat dial to its lowest setting or turn off the dedicated circuit breaker.
5.2. Temperature Control
Adjust the temperature by rotating the thermostat dial located on the front grille. Turning the dial towards 'WARMER' will increase the heat output, while turning it towards 'COOLER' or 'OFF' will decrease or stop the heat output. The heater's cross-flow blower operates to distribute warmth quietly.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater. Always disconnect power to the heater at the circuit breaker before performing any maintenance.
- Cleaning: Periodically clean the air intake and output grilles to remove dust and debris. Use a soft brush or vacuum cleaner attachment. Do not use abrasive cleaners, solvents, or spray directly with liquids.
- Inspection: Annually inspect the heater for any signs of damage, loose connections, or unusual wear. If any issues are found, contact a qualified technician for repair.
7. Troubleshooting
If you experience issues with your Marley QTS1504T Toe Kick Heater, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power supply, tripped circuit breaker, thermostat set too low, activated thermal cutout. | Check circuit breaker. Ensure heater is receiving 240V power. Increase thermostat setting. Allow heater to cool down if thermal cutout was activated. |
| Insufficient heat output. | Thermostat set too low, blocked air grilles, incorrect voltage. | Increase thermostat setting. Clean air intake/output grilles. Verify 240V power supply. |
| Unusual noise during operation. | Loose components, foreign object in fan, fan motor issue. | Disconnect power and inspect for obstructions. If noise persists, contact customer support. |
| Heater cycles on and off frequently. | Thermostat setting too close to ambient temperature, poor air circulation. | Adjust thermostat setting. Ensure clear airflow around the unit. |
If troubleshooting steps do not resolve the issue, contact Marley customer support or a qualified electrician.
8. Specifications
Key technical specifications for the Marley QTS1504T Toe Kick Heater:
- Brand: Marley
- Model: QTS1504T
- Heat Output: 1500 Watts
- Voltage: 240 Volts
- Amperage: 6.25 Amps
- Form Factor: Toe Kick
- Product Dimensions (D x W x H): 8.88" x 15.38" x 3.62"
- Indoor/Outdoor Usage: Indoor
- Special Feature: Noiseless (as per manufacturer specification)
- Color: Black
- Mounting Type: Recessed / Toe Kick Mount
- Recommended Room Type: Bathroom, Kitchen, Office
- Heating Coverage: Up to 300 square feet
- Fuel Type: Electric
9. Warranty Information
This Marley product is covered by a manufacturer's warranty. For specific warranty terms, conditions, and duration, please refer to the warranty documentation included with your purchase. You may also visit the official Marley website or contact their customer support for detailed information regarding warranty claims and service.
10. Customer Support
For technical assistance, replacement parts, or service inquiries regarding your Marley QTS1504T Toe Kick Heater, please contact Marley customer support. Contact information, including phone numbers and email addresses, can typically be found on the manufacturer's website or in the product packaging.
You can also visit the Marley Store on Amazon for additional product information.





