HELIOFRANCE pressurised solar water heating kit (300L tank + 1 or 2 sensors + accessories) [CLONE]

• Free domestic hot water production thanks to the sun
• Corrosion resistant polypropylene balloon with reinforced insulation - Lifetime warranty
• Installation of the sensors in Over-roof or on 45° frame for flat roofs.

Complete Heliofrance Pressurized Solar Thermal Water Heater Kit (BFP)

The Heliofrance BFP solar thermal kit consists of:

• 300L cylinder equipped with a 5 or 7 m² domestic hot water exchanger, an electric auxiliary resistance and/or a hydraulic auxiliary exchanger,
• A regulation pre-mounted on the tank, necessary for the operation and optimization of solar hot water production.
• 1 or 2 vertical or horizontal solar thermal (hot water) sensors,
• Roof or frame mounting accessories for flat roofs or in the garden,
• Hydraulic kit (Circulator, expansion tank...) with optional bi-tube solar connection and fittings,

Functioning principle:

Like all solar water heaters, the basic principle is to heat the water in the tank by circulating a heat transfer fluid between the tank and the sensors when temperatures allow. The heat transfer fluid is water diluted in an antifreeze called glycol.

At Heliofrance, the water stored in the tank is always the same. It is possible to use rainwater to avoid scaling the electric booster or the hydraulic exchangers in regions with very hard water.

This water in the tank is used to store calories, it is described as "dead water". It is at atmospheric pressure. When domestic hot water is being transferred, the cold water entering the tank passes through the domestic exchanger embedded in the hot storage water where it is heated and then sent to the draw-off point.

The volume of stored domestic hot water (only that in the exchanger) is therefore very small. Its quality is not degraded as it could be after a too long storage.

The storage tank starts charging with solar heat when the temperature probe on the sensors indicates a sufficient temperature that is higher than the storage water temperature at the bottom of the tank. The circulator connected to the solar heat exchanger at the bottom of the tank then starts up and the water heats up.

When the storage temperature reaches its maximum value, the pump switches off to protect the storage tank.

The 300L tank volume which includes a reserve of approximately 200L of water heated by the hydraulic or electric booster when required fits to a family of 4 to 5 people.

The sensor surface area of 2.7 m² to 5.4 m² should enable 50 to 80% of the household's domestic hot water needs to be covered, depending on the consumption profile, the orientation and inclination of the sensors, the geographical area, and any solar masks...

Advantages and disadvantages of a pressurised system

The main advantage of the pressurised solar system is that it can be adapted to all installation configurations, regardless of the location of the sensors and the storage tank.

Like all solar water heaters, the pressurised CESI must allow the consumption of fossil or electrical energy of a traditional water heater to be divided by 3 on average. A solar water heater is much more durable than a thermodynamic water heater due to the nature of its components. The Heliofrance tank is guaranteed for life, the sensors are guaranteed for 10 years and, if properly installed and maintained, can last 30 years or more. The hydraulic elements - circulators, expansion tank and even the regulation - are simple, inexpensive and easy to replace in the event of a hard blow.

The main drawback of a pressurised solar water heater comes from managing overheating in summer. The need for hot water in the summer is often lower while the production is at its maximum. As the temperature of the storage tank cannot exceed 85°C, the glycol water (antifreeze) stored in the sensors will rise in temperature and the glycol will degrade more or less quickly. To reduce or solve this problem, it is better to undersize the sensor field or, if possible, to discharge the excess heat into a swimming pool, for example.

A pressurised system requires more or less regular maintenance to check the condition of the heat transfer fluid (glycol water), the expansion tank or the pressure of the solar circuit and to ensure maximum efficiency. Depending on the installation and its use, this maintenance should be done every 1 to 5 years.

When it is possible, we therefore advise rather to install a self-draining solar water heater (see the kit proposed on the site). There is then no risk of overheating, no use of glycol, just water and maintenance is much lighter.

Heliofrance Pressurized Solar Kit Installation:

The balloon: The balloon is compact (Width 67cm x Depth 55cm x Height 180cm). The connections are made on the top of the tank which is the most practical format for installation but requires anticipating the location of the tank to make the hydraulic connections and access to the heater from above.

The tank is delivered pre-equipped and ready to connect (excluding solar circuit)

The sensors: the sensors can be either vertical or horizontal in a pressurised installation. The sensors are supplied with accessories for roof mounting or with a 45° frame.

The solar link: The solar link is supplied as an option with the kit. In fact, site coordination often requires the solar link to be installed before the tank and sensor(s) are installed.

The maximum length of connection to be provided is 15m to fit with the power of the circulator (for any other configuration, please contact us)

It is advisable to run the electrical sensor cable and the earth with the solar link. Similarly, it is recommended to work with copper bar or, failing that, to use a straight support in the case of an annealed copper or corrugated stainless steel link.

Heliofrance: a French manufacturer specialized in solar thermal

Heliofrance is located in Berat near Toulouse. It is a French SMB that has specialised in the production of solar thermal solutions since 2008.

It is a human-sized company close to its customers and users.

The company is a human-sized company that is close to its customers and users.

It provides them with fast and qualitative solutions for their greater satisfaction.
Heliofrance designs and manufactures its range of solar thermal sensors, synthetic accumulators and regulators.

The company owns its production tools (cutting, assembly, bending, welding, gluing, foaming, ...) and ensures all its products maximum performance and guarantees.