The choice and installation of a heating system are crucial decisions for your comfort at home. In 2025, with the focus on energy efficiency and reducing carbon footprints, it is essential to understand the financial implications of this renovation. Whether you are considering renovating your apartment or your house, several factors must be taken into account to establish an adequate budget. This includes elements such as the type of heating, installation costs, and the various aids available to ease your expenses. This article aims to explore these aspects in depth to best prepare you for this process.
Energy diagnosis: an essential step
Before making any decisions, it is fundamental to carry out an energy diagnosis of your home. Conducted by qualified professionals, this diagnosis assesses the thermal state of your dwelling and allows you to estimate your energy consumption. In return, you will receive specific recommendations on the work to be done to optimize your thermal comfort and reduce your energy bills. Typically, the main recommendations focus on two areas: insulation and the heating system.
The importance of insulation
A good heating system in poorly insulated housing will be largely ineffective. Heat loss sources must therefore be taken into account. Insulating attics, walls, and windows is crucial to prevent heat from escaping. Here is an indicative table of average prices for this work:
| Type of insulation | Cost per m² (in €) |
|---|---|
| Attic insulation | 20 to 80 |
| Internal wall insulation | 40 to 80 |
| Window insulation | Depending on the type, between 150 and 600 |
These investments in initial insulation can contribute to a more efficient heating system, requiring less energy to keep your home at a pleasant temperature.
Choosing a high-performance heating system
After improving insulation, it is time to consider the type of heating to install. Several options are available, which vary widely in terms of cost and performance. Here is an overview of the different technologies available:
- Condensing boilers: available in gas or fuel oil, their costs range between 3,000 and 7,000 € respectively.
- Wood boilers: high-performance models can cost between 6,000 and 20,000 €.
- Heat pumps: geothermal ones are estimated between 13,000 and 20,000 €, while air-to-air ones range between 10,000 and 15,000 €.
- Combined solar systems: these devices cost around 12,000 to 15,000 €.
With the type of heating you are considering in mind, consult a professional, especially those offering equipment such as Thermor, Saunier Duval, Atlantic, or De Dietrich, which specializes in installation.
Heating installation costs: determining factors
Calibrating your overall budget requires taking several elements into account. Beyond equipment costs, other expenses can add up, including:
- The cost of installation work
- The cost of additional materials needed
- The fees related to updating existing installations
Be sure to request quotes from several professionals to better compare prices and include any financial aids for your installation. A good practice is to choose RGE-certified installers (Recognized Guarantor of the Environment) to maximize your chances of benefiting from government subsidies.
Table of average installation costs by type of heating
| Type of installation | Average cost (in €) |
|---|---|
| Gas condensing boiler | 3,000 – 5,000 |
| Fuel oil boiler | 3,700 – 7,000 |
| Air-to-air heat pump | 10,000 – 15,000 |
It is wise to consider not only the purchase cost but also the operating cost, as some technologies, although more expensive to purchase, can significantly reduce your energy bills.
Additional equipment to enhance your heating system
For maximum efficiency of your heating system, be sure to include complementary equipment. These elements can play a crucial role in optimizing your energy consumption:
- Regulation and thermostats: They allow you to adjust your heating and save energy. Install programmable thermostats as soon as possible.
- Sanitary hot water systems: Integrate a hot water tank for water heating, which can be done by your boiler or a thermodynamic water heater.
- Ventilation: Implementing a high-performance ventilation system is essential, especially in newly insulated houses.
The cost of this equipment can vary significantly, but note that programmable regulation can start from 150 €, and the installation of a single-flow VMC can range between 1,000 and 2,000 €.
Table of costs for complementary equipment
| Type of equipment | Average cost (in €) |
|---|---|
| Programmable regulation | 150 – 500 |
| Hot water tank | 2,500 – 4,000 |
| Single-flow VMC | 1,000 – 2,000 |
For an optimized installation, I advise you not to overlook this equipment that can radically improve the thermal comfort of your home.
Financial aids to reduce your heating budget
In 2025, the State and local authorities offer a whole range of financial aids to support your renovation work. These subsidies can significantly lighten your initial budget. It is crucial to inquire about the following schemes:
- Tax credit for energy transition
- Zero-interest eco-loan
- Anah aid (National Housing Agency)
To benefit from these aids, ensure that you engage certified installers such as those from Groupe Atlantic, Chaffoteaux, Buderus, or Viessmann.
Evaluation of annual expenses
Finally, to plan your overall budget, it is vital to include the maintenance costs of your equipment. Consider these annual expenses:
- Maintenance of the heating device: between 80 and 200 €
- Soot removal (mandatory for wood boilers): between 60 and 150 € per year
These operating costs should be integrated into your financial planning to ensure that your renewal is optimal and sustainable in the long term.
FAQ
What are the average costs of a gas boiler in 2025?
Gas condensing boilers generally range between 3,000 and 5,000 €, installation included.
What heating solutions are the most economical in the long term?
Wood heating systems, especially with pellet boilers, are often less expensive to operate, even though the initial investment can be high.
How can I benefit from financial aids for my energy renovation?
You must contact a certified RGE professional installer and provide quotes to justify your application for aids.
What is the average price of a heat pump?
On average, air-to-air heat pumps cost between 10,000 and 15,000 €.
What is the annual maintenance cost of a wood boiler?
For annual maintenance, expect between 80 and 200 € for the device, not to mention soot removal which can cost between 60 and 150 €.
For any questions or personalized advice, feel free to contact me. I am here to help you realize your heating project efficiently and sustainably.