The costs of a heat pump alongside a central heating boiler can vary depending on several factors, such as the type of heat pump, capacity, installation costs, and any modifications to the heating system. Here are some important considerations:

1. Type of Heat Pump:

   • The type of heat pump influences the costs. Air-to-air heat pumps are generally cheaper than ground-to-water or water-to-water heat pumps. Hybrid systems (a combination of a heat pump and central heating boiler) are often more cost-effective.

2. Capacity of the Heat Pump:

   • The required capacity of the heat pump is determined by the home's heating demand. A larger capacity can lead to higher costs. A detailed energy assessment can help determine the right capacity.

3. Installation Costs:

   • The installation costs include labor, materials, and any modifications to the heating system. It may be necessary to replace radiators with low-temperature radiators or install underfloor heating for more efficient heat pump operation.

4. Home Modifications:

   • Modifications to the home, such as improved insulation, may be necessary to optimize the efficiency of the heat pump. These costs should also be considered.

5. Hybrid System or Complete Replacement:

   • A hybrid system, where the heat pump is combined with an existing central heating boiler, can save costs compared to a complete replacement of the heating system.

6. Subsidies and Financial Incentives:

   • Check if there are any subsidies available for the installation of a heat pump. Subsidies can reduce the initial costs and shorten the payback period.

7. Maintenance Costs:

   • Also consider the maintenance costs of both the heat pump and the central heating boiler. Regular maintenance is important for optimal operation and longevity.