The Helios Fans WHR 2÷80÷50 is a warm water heater battery designed for integration into duct systems, equipped with flanges on both sides for secure and straightforward installation. Its housing is made from galvanized sheet steel, offering durability and resistance to corrosion. The internal heat exchanger consists of copper pipes and aluminium fins, ensuring high-efficiency heat transfer. This unit supports a maximum operating temperature of 120 °C and can handle pressures up to 8 bar. Water connections are provided with external threads, allowing for easy connection to the building’s heating system.