1. Introduction
Thank you for choosing the Stelpro Prima Series Electric Baseboard Heater. This manual provides essential information for the safe installation, operation, and maintenance of your 1000W / 240V model (ASPRL1002W). Please read these instructions thoroughly before installation and use, and retain them for future reference.
The Stelpro Prima Series heater is designed to provide efficient and silent convection heat for indoor spaces up to 100 sq. ft. Its compact, low-profile design allows for discreet placement, making it suitable for various rooms such as offices, kitchens, and guest rooms. The heater features a durable casing, a precision-formed tubular element with aluminum fins for optimal heat distribution, and full-length thermal protection for safety.
2. Important Safety Information
WARNING: Risk of fire, electric shock, or injury to persons.
- Read all instructions before installing or using this heater.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. 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 keep them away from the sides and rear.
- Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
- Do not operate any heater after it malfunctions, has been dropped, or damaged in any manner. Disconnect power at service panel and have heater inspected by a reputable electrician before reusing.
- Do not use outdoors.
- This heater is not intended for use in bathrooms, laundry areas, and similar indoor locations. Never locate heater where it may fall into a bathtub or other water container.
- Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Arrange cord away from traffic area and where it will not be tripped over.
- To disconnect heater, turn controls to off, and turn off power to heater circuit at main disconnect panel.
- 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. Do not use on soft surfaces, like a bed, where openings may become blocked.
- A heater has hot and arcing or sparking parts inside. Do not use it in areas where gasoline, paint, or flammable vapors or liquids are used or stored.
- Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons.
- This heater must be hardwired. It is not a plug-in unit.
- Ensure the electrical supply is 240V for optimal performance.
3. Specifications
| Feature | Detail |
|---|---|
| Brand | Stelpro |
| Model Number | ASPRL1002W |
| Heat Output | 1000 Watts (at 240V) / 750 Watts (at 208V) |
| Voltage | 240 Volts |
| Amperage | 4.17 Amps |
| Heating Coverage | Up to 100 sq. ft. |
| Product Dimensions (L x H x D) | 49.88" x 7.06" x 2.69" (1267 mm x 179 mm x 67 mm) |
| Item Weight | 11.48 pounds |
| Mounting Type | Wall Mount |
| Fuel Type | Electric |
| Special Features | Bladeless, Fast Heating, Noiseless, Impact Resistant, Easy to Clean |
| Color | White |
4. Setup and Installation
Installation must be performed by a qualified electrician in accordance with all local and national electrical codes.
4.1 Pre-Installation Checks
- Verify that the heater's voltage (240V) matches your electrical supply.
- Ensure the circuit breaker for the heater circuit is OFF before beginning any installation work.
- Confirm you have the necessary tools and materials, including appropriate wiring and connectors.
4.2 Mounting Instructions
The heater is designed for wall mounting. It should be installed at least 3 feet (0.9 m) from combustible materials.

Image: Side view of the Stelpro Prima Series Baseboard Heater showing its dimensions: 49 7/8 inches (1267 mm) long, 7 1/16 inches (179 mm) high, and 2 5/8 inches (67 mm) deep.

Image: A Stelpro Prima Series Baseboard Heater seamlessly installed along the base of a wall in a room, illustrating its quick and easy installation process.
- Position the heater in the desired location, ensuring proper clearances from corners, furniture, and other objects.
- Mark the mounting points on the wall.
- Secure the heater to the wall using appropriate fasteners for your wall type.
4.3 Electrical Connection
This heater requires a hardwired connection to a 240V electrical circuit. It is NOT a plug-in unit.

Image: A diagram explicitly showing that the heater is 'NOT PLUG-IN' with a red 'X' over a plug, and requires a 'HARDWIRED CONNECTION' with a green checkmark over electrical wiring connections.

Image: A warning symbol with text '240 V HARDWIRED CONNECTION' above a diagram illustrating how electrical wires are connected directly, emphasizing the 240V hardwired requirement.
- Connect the heater's wiring to the dedicated 240V circuit according to local electrical codes.
- Ensure all connections are secure and properly insulated.
- After wiring, replace the front panel. The two-click removable front panel provides quick access for maintenance and installation.
5. Operating Instructions
5.1 Initial Power-Up
- Once installation is complete and all connections are secure, turn the power back ON at the main electrical panel.
- The heater may emit a slight odor during its first few hours of operation as manufacturing residues burn off. This is normal and will dissipate.
5.2 Thermostat Control
This heater does not include an integrated thermostat. You have two primary options for controlling the heater's temperature:
- Wall-Mounted Thermostat: Connect the heater to a compatible wall-mounted thermostat (sold separately) for room temperature control. This is the most common method.
- Optional Built-in Thermostat Kit: An optional built-in electronic thermostat kit (Stelpro model SIBTE12F, sold separately) can be installed directly into the heater for on-unit temperature adjustment.
Refer to the thermostat's instruction manual for specific operating procedures.
6. Maintenance
WARNING: Disconnect power at the main electrical panel before performing any maintenance or cleaning.
6.1 Cleaning
- The heater's clean housing and detachable front panel simplify cleaning.
- To clean the exterior, use a soft, damp cloth. Do not use abrasive cleaners or chemical solvents, as these can damage the finish.
- For internal cleaning, carefully remove the front panel. Use a vacuum cleaner with a brush attachment to remove dust and debris from the heating element and fins.
6.2 Inspection
- Periodically inspect the heater for any signs of damage, loose connections, or unusual wear.
- Ensure that the air intake and exhaust grilles are not blocked by dust or other obstructions. The narrow grille spacing (6 mm or 1/4 inch) is designed to restrict access to the elements for safety.

Image: A close-up view of the heater's grille, highlighting the 'SAFER CASING' with 6 mm (1/4 inch) openings designed to restrict access to the heating elements.
7. Troubleshooting
If your heater is not operating correctly, consult the following table for common issues and solutions. If the problem persists, contact a qualified electrician or Stelpro customer support.
| Problem | Possible Cause & Solution |
|---|---|
| Heater does not turn on. |
|
| Heater produces insufficient heat. |
|
| Heater cycles on and off too frequently. |
|
| Unusual odors during operation. |
|
8. Warranty Information
The Stelpro Prima Series Electric Baseboard Heater (ASPRL1002W) is backed by a 5-year baseboard warranty and a lifetime heating element guarantee. This warranty covers defects in material and workmanship under normal use and service. For full warranty terms and conditions, please refer to the official Stelpro warranty documentation or contact customer support.
9. Customer Support
For technical assistance, warranty claims, or further information regarding your Stelpro Prima Series Electric Baseboard Heater, please visit the official Stelpro website or contact their customer service department. Ensure you have your model number (ASPRL1002W) and purchase date available when contacting support.
Stelpro Website: www.stelpro.com





