Danfoss and Calpak, two companies that are pioneers in developing state-of-the-art products and solutions for water systems in buildings, organized a technical seminar, which was held in Athens Royal Olympic hotel on November 9, 2018. In the event, which attracted the ineterest of the technical world and was attended by senior engineers and technicians involved in HVAC business, Danfoss presented smart products and solutions for thermal balancing and anti-legionella treatment in the recirculation network of domestic water supply systems, whereas Calpak launched its innovative X-Flow ultratank.