1. Introduction
Thank you for choosing the Stiebel Eltron CON 100-1 Premium Wall-Mount Convection Heater. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your new heater. Please read these instructions thoroughly before installation and use, and retain them for future reference.

Figure 1: Stiebel Eltron CON 100-1 Premium Wall-Mount Convection Heater.
2. Safety Instructions
Always observe the following safety precautions to reduce the risk of fire, electric shock, or injury:
- Read all instructions before using this heater.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces.
- 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 with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner.
- Do not use outdoors.
- To disconnect heater, turn controls to off, then remove plug from outlet.
- 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 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.
- The thick aluminum face of the heater is designed to stay cool to the touch during operation, enhancing safety.
- The heater includes overheat protection, which automatically shuts off the unit if it becomes too hot.
3. Package Contents
Verify that all components are present and undamaged:
- Stiebel Eltron CON 100-1 Premium Convection Heater
- Power cord with plug
- Wall-mounting bracket
- Instruction Manual (this document)
4. Setup and Installation
The CON 100-1 Premium heater is designed for wall-mount installation. Ensure the chosen location allows for proper air circulation and is away from flammable materials.
4.1 Site Selection
- Choose a flat, vertical wall surface.
- Ensure there is adequate clearance around the heater for optimal performance and safety.
- The heater operates on 120V and comes with a cord and plug for standard outlet connection.
4.2 Mounting the Heater
The heater is supplied with a wall-mounting bracket. Installation is straightforward, typically requiring four wood screws (not included) and a level to ensure proper alignment.
- Carefully unpack the heater and mounting bracket.
- Position the mounting bracket on the wall at the desired height, ensuring it is level.
- Mark the drilling points for the screws.
- Drill pilot holes if necessary and secure the bracket firmly to the wall using appropriate screws.
- Hang the heater onto the secured wall bracket. Ensure it clicks into place securely.

Figure 2: Product dimensions for installation planning. The heater measures approximately 4.9 inches deep, 18.5 inches wide, and 18.5 inches high.

Figure 3: Example of the CON 100-1 Premium heater installed on a wall in a living space.
5. Operating Instructions
The CON 100-1 Premium features an electronic digital control with an illuminated display for precise temperature management and various functions.

Figure 4: Close-up view of the electronic digital control panel and display.
5.1 Basic Operation
- Power On/Off: Use the main power switch, typically located on the side of the unit, to turn the heater completely off or on.
- Temperature Setting: Use the '+' and '-' buttons on the control panel to adjust the desired room temperature. The illuminated display will show the set temperature.
- Display: The display shows the current temperature and active modes (e.g., timer, frost protection).
5.2 Advanced Features
- Programmable Timer: The heater includes a programmable timer with three preset options. Refer to the detailed programming section in the full manual for setting specific schedules. The self-learning program in timer mode will pre-heat the room to reach the desired temperature at the programmed time.
- Booster Heating: Activate the variable timer for booster heating, which can run for up to 120 minutes, providing a temporary increase in heat output.
- Open Window Detection: For energy efficiency, the heater can detect open windows and temporarily reduce heating to conserve energy.
- Child Protection Mode: This mode locks the controls to prevent unintended adjustments, enhancing safety in households with children.
- Frost Protection: A dedicated setting maintains above-freezing temperatures in an appropriately sized space, preventing pipes from freezing in unoccupied areas.
6. Maintenance
The Stiebel Eltron CON 100-1 Premium heater is designed for low maintenance. As a natural convection heater, it does not have a fan, reducing the need for filter cleaning.
- Cleaning: Ensure the heater is unplugged and cool before cleaning. Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Air Vents: Periodically inspect the air intake and exhaust vents for dust accumulation. While there is no fan, dust can still gather. Gently use a soft brush or compressed air to clear any blockages.
- Storage: If storing the heater for an extended period, ensure it is clean, dry, and stored in a safe location.
7. Troubleshooting
If you encounter issues with your heater, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on | No power, main switch off, circuit breaker tripped | Check power outlet, ensure main switch is on, reset circuit breaker. |
| No heat output | Temperature set too low, open window detected, overheat protection activated | Increase set temperature, close windows, allow heater to cool if overheat protection engaged. |
| Inconsistent heating | Room temperature fluctuations, drafts | Ensure proper room insulation, avoid drafts. The heater maintains a consistent temperature with minimal variation. |
| Clicking or 'thunk' sound | Normal operation during heating element expansion/contraction | This is a normal operational sound and does not indicate a fault. |
| Controls unresponsive | Child protection mode active | Deactivate child protection mode as per the full operating instructions. |
If the problem persists after attempting these solutions, please contact customer support.
8. Specifications
Key technical specifications for the Stiebel Eltron CON 100-1 Premium heater:
| Feature | Detail |
|---|---|
| Model Number | CON 100-1 |
| Brand | Stiebel Eltron |
| Wattage | 1000 watts (1 kW) |
| Voltage | 120 Volts |
| Fuel Type | Electric |
| Mounting Type | Wall Mount |
| Product Dimensions (D x W x H) | 4.9" x 18.5" x 18.5" |
| Item Weight | 14 Pounds |
| Color | White |
| Material | Aluminum |
| Special Features | Noiseless, Overheat Protection, Electronic Control, Programmable Timer, Open Window Detection, Child Protection Mode |
| Included Components | Heater with cord and plug, wall-mounting bracket |
| Indoor/Outdoor Usage | Indoor |
| Recommended Uses | Home, Bathroom, Home Office |
| UPC | 040232348426 |
9. Warranty and Support
9.1 Warranty Information
The Stiebel Eltron CON 100-1 Premium heater comes with a 3-year limited warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For full details on warranty terms and conditions, refer to the documentation included with your product or visit the official Stiebel Eltron website.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Stiebel Eltron customer support. Contact information can typically be found on the manufacturer's website or on the product packaging.