I've had a Lambda heat pump running since September. It all started with the fact that the advice and quotation were in a class of their own: The advice was very thorough and adapted to my old house in several stages, the quotation was detailed and easy to understand. The installation was very professional and complex in the outdoor area, the hydraulics in the basement have become a small work of art. The commissioning was thorough and most of the parameters were well set. So far, I have only adjusted the heating curve a little and Green Vision had to increase the maximum output at 0 degrees via remote maintenance, but this was done in a few hours. After half the winter now, just before Christmas, not only is the house nice and warm, but at just under 6.0 the JAZ is even significantly better than the predicted 4.6. Unfortunately, I can't award more than 5 stars....
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