The solar water heater

Rising energy costs should not compromise your well-being. Switch to a more cost-effective heating system now. With Calowatt, benefit from affordable heating solutions, supported by financial subsidies and quality craftsmen.

My estimate

At Calowatt, the installation of individual combined solar water heaters and individual solar water heaters (CESI), whether on a sloping roof, a terrace or on the ground, is generally carried out by a qualified and RGE (Recognized) certified expert. Guarantor of the Environment). This professional takes care of evaluating the capacity of your water heater, analyzing your hot water needs and the specificities of your home, without forgetting to carry out the work itself.

It is therefore essential to choose the installer wisely to obtain the solar water heating system best suited to your budget and your requirements. Once the ideal installer is selected, the installation process can begin!

Step 1: Choosing the installer

Selecting a qualified RGE installer is crucial to the longevity and efficiency of your solar water heater. This also qualifies you for state aid. Be vigilant, because scams have multiplied. To find reliable installers, consult the Calowatt directory or call our experts on 09 70 70 70 68, Monday to Friday from 10 a.m. to 6 p.m.

Step 2:  Assessment and Preparation

Step 2: Assessment and Preparation
Before starting the installation of the solar water heater, a feasibility study is essential to assess your hot water needs, and installation options according to the configuration of your property and the particularities of the location considered.

• Firstly, make sure you obtain the necessary planning permission, as some areas may impose restrictions on the installation of solar water heaters.
• Second, plan technical details such as tank capacity, the optimal location of solar collectors, and the choice between a forced circulation or thermosyphon system. This is also the ideal time to assess your project’s profitability, considering installation costs and potential grants or financial aid.

Step 3: Preparing the Plumbing System

After determining the specifics of your solar water heater installation, it will be necessary to prepare your plumbing system for its integration. This step involves organizing the circulation of water between the solar collectors, the storage tank, and your domestic hot water network. Previously obtained planning permission must be taken into account during this preparation. Our partner installers, experts in solar water heaters, are at your disposal to support you in this technical phase and ensure that everything complies with current standards.

Step 4: Installing the Solar water heater Collectors

Following validation of the quote and preparation of the plumbing system, the actual installation can begin. This step covers the installation of solar thermal collectors by a plan drawn up by professionals. These sensors are responsible for capturing solar energy to heat water. To guarantee optimal efficiency, it is recommended to orient the sensors towards the south with an inclination of approximately 30°. The duration of this installation can vary from a few days to several weeks, particularly if the sensors are integrated into the roof or installed on a specific structure.

Step 5: Integration with the plumbing system

Essential to ensure the distribution of hot water in your home, this step consists of connecting the solar water heater to your domestic plumbing network. It may be necessary to carry out specific work to guarantee optimal circulation of water between the solar collectors, the hot water tank, and the drawing points in your house. Our partner technicians ensure that this integration is carried out according to current standards and that the system is ready to operate efficiently. For a system solely dedicated to self-consumption, that is to say for your use without selling surplus energy, this step is essential to guarantee a continuous supply of hot water.

Focus on storage solutions for solar water heaters:

Depending on the specifics of your solar water heater project, it may be necessary to store heated water during sunlight hours for later use. In this context, thermal storage tanks are an ideal option for optimizing the use of your solar water heater. It is crucial to emphasize that the effectiveness of these storage systems is highly dependent on the configuration and needs of each household. They are particularly suitable for homes with significant hot water needs or irregular periods of sunshine

Currently, two main storage solutions are commonly used:

• Classic thermal storage tanks: These tanks store the water heated by solar collectors for later use. They are commonly used in most solar water heater installations.
• Combined tanks: These systems combine the solar water heater with another heating source (such as a boiler or heat pump). They ensure a supply of hot water even when there is insufficient sunlight.

It is essential to choose the storage system adapted to your needs to maximize the benefits of your solar water heater.

Step 6: Commissioning the solar water heater

After integrating with the plumbing system and checking all connections, your solar water heater is ready to be activated. Once the certificate of conformity has been received (similar to the CONSUEL certificate for electrical installations), it is essential to carry out a series of tests to guarantee the proper functioning of the system. Our partner technicians ensure the correct commissioning of the installation so that you can fully benefit from your solar hot water. Also be sure to take the necessary steps with your water supplier, if required, to report the addition of a solar water heater to your home network.

Why choose a solar water heater from Calowatt?

The solar water heater represents an innovative solution to reduce your hot water bills significantly. By working closely with our experts, we ensure we provide you with an installation that is perfectly suited to your needs while being economically viable.

By opting for a solar water heater, you reduce your dependence on traditional energy sources and protect yourself against price fluctuations from energy suppliers. Depending on the sunlight conditions and the configuration of your system, you can save up to 60% on your hot water expenses!

The initial investment, although substantial, is amortized in the long term. Especially since the solar water heater is eligible for numerous subsidies and financial aid from the State and other organizations, which makes the total cost of your project significantly more affordable.

Solar water heating systems are also designed for maximum durability with minimal maintenance. Thanks to a robust design and quality materials, these installations effectively resist the elements, while optimizing the absorption of solar energy.

Choose clean, renewable, and economical energy. Contact our solar heating specialists on 09 70 70 70 68 to benefit from personalized support for your solar water heating project.

What are the possible prices for solar water heaters?

Solar water heaters have become an attractive option for those looking to reduce their carbon footprint while saving money on their energy bills. When considering investing in a solar water heater, it is essential to understand the different pricing options available in the market. Prices vary depending on several factors, including the capacity of the solar water heater, the quality of its components, and the cost of installation.

The price of a 300-liter solar water heater can vary significantly depending on the brand, quality, and technology used. Typically, an affordable quality model can cost between $1,000 and $3,000. High-end models, with advanced features, can exceed 5,000 euros.

Installing a solar water heater can also significantly influence the total cost. It is recommended to hire qualified professionals to ensure proper installation, which can add 500 to 2,000 euros to the total cost, depending on the complexity of the installation.

Some governments and organizations offer financial incentives to encourage the adoption of solar energy. In some areas, it is possible to find grants or tax incentives to reduce the overall cost of installing a solar water heater. This can make solar water heating more accessible and cost-effective for many households.

An interesting aspect to note is that there are programs that allow you to obtain a solar hot water tank for 1 euro or a solar water heater for 1 euro. However, it should be noted that these offers are often subsidized and subject to specific conditions, such as eligibility based on the location and financial situation of the applicant.

In summary, solar water heater prices vary depending on capacity, quality, technology, and the region where you live. It is essential to do thorough research, obtain quotes from different installers, and check available incentives to determine which solar water heater best suits your needs and budget. Investing in a solar water heater can be a smart way to reduce your energy bills in the long term while helping to protect the environment.