Tools

Q-Tech calculation tools for everyday installation work. Results are indicative: always check the equipment manufacturer's requirements.

Heating water VDI 2035 Calculator Litres per kW of the system and the maximum fill-water hardness under VDI 2035 (Part 1, March 2021). Full report by email. Open the calculator →

Information tools by Q-TECH HOUSES DIVISION S.L.UNIP. They do not replace the official text of the standards, the manufacturer's manual or an assessment by a competent engineer.