Share In this area, we provide guides and tools that we want to share with you. Click on the links to access any of the material. If you have any questions you are always welcome to contact us. Guides How to calculate mixing valve dimensions Comparison of the most important features on our loading units Films Instruction films If you have any questions Contact us E-Learning game Put your knowledge to the test and learn more about the products in a heating system with our interactive E-Learning game. Become an expert today! The app is available for PC and iPad.