1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Wolf CGW-2/14/100L gas condensing boiler. Please read it thoroughly before installation or use and retain it for future reference. The Wolf CGW-2/14/100L is an integrated heating system composed of the CGB-2 gas condensing boiler with a stainless steel hot water heat exchanger and a stratified stainless steel storage tank with special insulation.
2. Safety Instructions
Always observe the following safety precautions to prevent personal injury or damage to the appliance.
- Qualified Personnel: Installation, maintenance, and repair must only be carried out by qualified and authorized personnel.
- Gas Safety: In case of a gas leak, immediately shut off the gas supply, open windows and doors, and do not operate any electrical switches. Contact your gas supplier and a qualified technician.
- Electrical Safety: Ensure the appliance is properly grounded. Do not touch electrical components with wet hands. Disconnect power before any service.
- Hot Surfaces: The boiler and associated piping can become hot during operation. Avoid direct contact to prevent burns.
- Ventilation: Ensure adequate ventilation in the installation area as required by local regulations.
- Flammable Materials: Do not store flammable materials near the boiler.
3. Product Overview
The Wolf CGW-2/14/100L combines a high-efficiency gas condensing boiler with an integrated hot water storage tank, designed for optimal space utilization and energy performance.

Image showing the front view of the Wolf CGW-2/14/100L gas condensing boiler. The unit is white with a dark control panel visible on the lower left, displaying temperature and operational status. To the right, an integrated storage tank is visible.
Key Components:
- Gas Condensing Boiler (CGB-2): High-efficiency unit for heating.
- Stainless Steel Hot Water Heat Exchanger: For domestic hot water production.
- Stratified Stainless Steel Storage Tank (100L): Ensures rapid and efficient hot water availability.
- Integrated Control Panel: For setting and monitoring operational parameters.
4. Setup and Installation
Installation of the Wolf CGW-2/14/100L must be performed by a certified heating engineer in accordance with all local and national regulations, including gas, electrical, and plumbing codes.
Installation Steps (Overview):
- Site Preparation: Ensure the installation location meets space, ventilation, and structural requirements.
- Mounting: Securely mount the boiler unit to the wall.
- Hydraulic Connections: Connect heating flow and return, cold water inlet, and hot water outlet.
- Gas Connection: Connect the gas supply line. This must be leak-tested.
- Flue Gas System: Install the appropriate flue gas exhaust system.
- Electrical Connections: Connect the power supply and control wiring.
- Filling and Venting: Fill the heating system with water and vent all air.
- Initial Startup: Perform initial startup and functional checks according to manufacturer guidelines.
5. Operating Instructions
The integrated control panel allows for easy adjustment of heating and hot water settings.
5.1. Turning On/Off
- To Turn On: Ensure the gas supply is open and the electrical power is connected. Press the power button on the control panel. The display will illuminate.
- To Turn Off: Press and hold the power button until the display turns off. For complete shutdown, also close the gas supply and disconnect electrical power.
5.2. Temperature Adjustment
- Heating Temperature: Use the navigation buttons on the control panel to access the heating settings. Adjust the desired flow temperature or room temperature (if an external thermostat is connected).
- Domestic Hot Water Temperature: Navigate to the hot water settings on the control panel. Set the desired hot water temperature.
5.3. Control Panel Overview
The digital display provides information on current operating status, temperatures, and any error messages. Refer to the detailed control panel section in the full manufacturer's manual for specific icon and menu navigation instructions.
6. Maintenance
Regular maintenance ensures the longevity, efficiency, and safe operation of your Wolf CGW-2/14/100L boiler.
- Annual Servicing: Have the boiler inspected and serviced annually by a qualified technician. This includes cleaning the heat exchanger, checking combustion, and verifying safety devices.
- System Pressure: Regularly check the system pressure on the boiler's display or pressure gauge. It should typically be between 1.0 and 2.0 bar. If low, repressurize the system according to manufacturer instructions or contact a technician.
- Visual Inspection: Periodically check for any visible leaks, corrosion, or unusual noises.
- Cleaning: Clean the exterior of the boiler with a soft, damp cloth. Do not use abrasive cleaners.
7. Troubleshooting
This section provides solutions for common issues. For complex problems or if you are unsure, always contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| No heating/hot water | Low system pressure, no gas supply, power outage, thermostat setting too low, error code displayed. | Check system pressure and repressurize if needed. Verify gas and electrical supply. Check thermostat settings. Note any error codes and consult the full manual or technician. |
| Boiler making unusual noises | Air in the system, pump issue, limescale buildup. | Vent the heating system. If noise persists, contact a qualified technician. |
| Error code on display | Specific fault detected by the boiler's self-diagnostic system. | Note the error code. Consult the full manufacturer's manual for the specific code meaning and recommended action. If unable to resolve, contact a service technician. |
8. Specifications
Technical data for the Wolf CGW-2/14/100L gas condensing boiler.
| Feature | Detail |
|---|---|
| Manufacturer | Wolf |
| Model Number | CGW-2/14/100L (8615019) |
| Product Dimensions (L x W x H) | 37.8 x 80.01 x 78.99 cm |
| Weight | 54 kg (approximately 119.05 lbs) |
| Color | White |
| ASIN | B07S1TYDCM |
| Boiler Type | Gas Condensing Boiler with Integrated Stratified Storage Tank |
| Hot Water Tank Capacity | 100 Liters (implied by model name) |
9. Warranty and Support
Wolf products are manufactured to high quality standards and come with a manufacturer's warranty. Please refer to the warranty documentation provided with your appliance for specific terms and conditions.
Customer Support:
For technical assistance, spare parts, or warranty claims, please contact your authorized Wolf dealer or a certified service partner. You can also visit the official Wolf website for further information and contact details.
- Manufacturer Website: www.wolf.eu (Example link, please verify official website)
- Service Contact: Refer to your local dealer information.





