Solar panel with 15 evacuated tubes for domestic hot water preparation with unpressurized tank 150 liters jrh

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Solar panel with 15 evacuated tubes for domestic hot water, non-pressurized 150 L tank – SUNTASK

This is one of our best-selling products. The key to this success isn’t a secret. As with all our own-brand products, we have strived—and continue to strive—to offer the best possible quality at the best possible price.

The solar panel with 15 tubes and non-pressurized 150 L tank – SUNTASK heats water based on the thermosiphon principle. In the solar panel with 15 tubes and non-pressurized 150 L tank – SUNTASK, water circulates in a closed loop due to the difference between the specific weight of the hot fluid rising through the supply pipe and the specific weight of the cooler fluid returning to the heat source. This occurs by capturing solar radiation, converting it into thermal energy, and heating the water inside the evacuated tubes, which are characterized by high absorption power and low heat loss.

To minimize the possibility of faults, the assembly should be designed without electrically driven components. It should preferably operate on simple mechanical principles, be easy to assemble, easy to repair, and any faulty components should be inexpensive and simple to replace.

Returning briefly to the operation of the JRH 15-tube solar panel: due to the density difference between cold and hot water, an upward circuit forms in the solar collector, whereby the mass of hot water heated in the evacuated tubes is replaced by an equivalent mass of cold water. Thus, hot water accumulates in the storage tank located above the tubes.

Thanks to the selective absorption coating applied across the inner tube surface, the system has high capture efficiency. The tube is made of 3.3 mm borosilicate glass with high transparency, is frost-resistant, and chemically stable. The tube has double walls with a vacuum between them at a pressure of ≤5×10⁻² Pa, providing thermal insulation. Due to the cylindrical shape and placement of the evacuated tubes, they can optimally capture solar rays throughout the day.

Thanks to the capture efficiency of the evacuated tubes, the JRH 15-tube solar collector can cover 70–80% of the domestic hot water demand from March to October, without using electricity.

Main advantages:

• Does not require electricity
• Steel stand, powder-coated
• Water heating via thermosiphon
• Inner tank made of stainless steel
• Tank insulation made of high-density polyurethane foam
• Equipped with a break tank (header tank) with a float valve

Choosing the installation location for the JRH 150 L non-pressurized 15-tube evacuated solar panel for domestic hot water

When selecting the collector’s location, consider the following:

• The solar collector should face South with an inclination of approx. 45°. If oriented East, it will work more efficiently in the morning; if West, heat gain will be higher in the afternoon.
• Ensure the chosen spot is not shaded by trees or buildings during the day, especially between 9:00 and 15:00, when sunlight is at its peak.
• Check the roof structure to ensure it can bear the load of the solar collector filled with water. Also verify the support points of the front legs on the roofing; it is recommended to place adequately resistant pads under the legs. If the roof structure cannot support this additional load, reinforcement is required.
• The solar collector is installed above the highest hot-water consumer. The minimum pressure of the hot-water column is determined only by the height at which the collector is mounted.

If you want to harness solar energy for domestic hot water, solar thermal panels are the perfect solution. And if you are looking for an efficient, reliable system, the JRH 15-tube evacuated solar panel with 150 L tank is exactly what you need.

The panel is equipped with 15 evacuated tubes designed to maximize solar radiation capture. These tubes, made of resistant borosilicate glass and featuring a selective absorption layer, convert solar energy into heat, thus heating the water in the 150-liter tank.

The thermosiphon principle ensures a continuous hot-water cycle without electricity. Water heats naturally due to the density difference between cold and hot water, which drives circulation through the system.

Built from high-quality materials, the JRH solar panel is engineered to deliver long-term performance and durability.

Easy to install and maintain, the solar panel is designed for straightforward assembly and servicing, with components that are simple to replace if needed.

Choose JRH solar hot water panels and enjoy the comfort of an eco-friendly, efficient, and economical hot water source.

Supplier: SUNTASK
Seller: JRH Express SRL