Solar Water Heater Archives

Solar Water Heater

Solar water heater works on the principle of natural thermal convection, high temperature water will move to the tank and low temperature water will tend to move down the collector to heat. This process repeat continuously until all the water in the tank and the collector is at equilibrium.

In addition, to ensure a constant hot water temperature during use regardless of the weather, the water heater is equipped with a controller with the task of monitoring the system's parameters and controlling the operating resistance. Make sure the water temperature of the system is always between 45 – 75°C.
On the other hand, the collector is manufactured according to European technology and has also achieved international standards such as Solar Keymark, ISO 9001, ISO 14001. Ensuring safety for users as well as commitment to quality product quantity.

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Certificate

ISO 9001:2015 – TUV NORD ISO 14001:2015 – MS CERT IEC 61439 – VINACONTROL IEC 61215 & IEC 61730 – TÜV SÜD IEC/EN 61215 & IEC/EN 61730 – TÜV NORD

ISO 9001:2015 – TUV NORD

On July 8, 2024, IREX – a member of SolarBK Group – was recertified by TUV Nord, a leading certification organization headquartered in Germany, with ISO 9001:2015 Certification for its Quality Management System covering the manufacturing and supply of photovoltaic modules (solar panels), electrical cabinets, solar water heating systems, control devices, and electrical data collection systems.

ISO 9001:2015 sets standards for establishing a scientific quality management system aimed at:

Controlling risks and preventing errors.
Ensuring consistent production and delivery of high-quality products and services that satisfy customers.

The application of this international standard reflects IREX’s and SolarBK’s overarching goal of providing high-quality products and solutions that meet domestic demands and gain trust in international markets.

ISO 14001:2015 – MS CERT

On February 10, 2025, IREX was recertified by MS Cert. with ISO 14001:2015 Certification for its Environmental Management System, covering the manufacturing and assembly of photovoltaic modules (solar panels), solar water heating systems, and electrical cabinets.

ISO 14001:2015 helps enterprises:

Establish an effective environmental management system.
Minimize negative environmental impacts throughout production and business operations.
Meet ESG compliance requirements from FDI partners and global customers.

This certification affirms SolarBK/IREX’s commitment to sustainable development while enhancing competitiveness in cooperation with international corporations.

IEC 61439 – VINACONTROL

On July 30, 2025, IREX was certified by Vinacontrol CE for compliance with IEC 61439-2:2011 for Low-voltage switchgear and controlgear assemblies. This is one of the strictest international standards in the electrical industry.

This certification is clear evidence of IREX’s commitment to delivering high-quality electrical cabinets that are stable, safe, and durable under all conditions, from industrial to residential environments.

Achieving this certification strongly reflects SolarBK’s and IREX’s continuous improvement efforts to meet stringent regulations in installation, operation, and maintenance throughout the lifecycle of solar power systems.

IEC 61215 & IEC 61730 – TÜV SÜD

On March 20, 2025, IREX was certified by TÜV SÜD with IEC 61215 & IEC 61730 standards for Half-cut photovoltaic modules with capacities up to 700Wp.

This demonstrates IREX’s R&D capacity and technology localization, delivering high-capacity products that optimize investment efficiency and align with new technology trends in the renewable energy sector.

IEC/EN 61215 & IEC/EN 61730 – TÜV NORD

On December 6, 2024, IREX was certified by TÜV Nord for IEC/EN 61215 & IEC/EN 61730 standards for Half-cut photovoltaic modules with capacities up to 630Wp.

IEC 61215: A standard for testing quality, performance, and durability of photovoltaic modules under harsh conditions, ensuring long-term effective operation.
IEC 61730: Focuses on safety requirements, protecting users from risks related to high voltage and electrical incidents.

This certification proves that IREX solar modules meet high quality, safety, and long-lasting performance requirements, making them suitable for international projects.