Greetings to you all, from the very beginning the cooperation with the employees, competent, honest, clear, fast, courteous, clean and always very friendly and fun. It gives us a lot of pleasure and happiness that we chose their company.
Sometimes there is a whistling sound from the system, but I have not yet located where exactly this comes from. This sound is only sometimes therefore difficult to locate. If I have found the and also know when, then I will contact the Schöll Franz and go with him to the bottom of the matter. Otherwise, the heating, solar system, heat exchanger, floor heating, buffer tank, runs flawlessly.
Now we just hope that everything goes well with the funding application and then everything is good.
With kind regards family Struller
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Translation
Comment from Seitz & Braun GmbH: 
thank you very much for your kind words and the great review! That really makes us all very happy!
Many greetings from your Seitz & Braun team