Alternative to Proxon air-to-air heat pump?

Maybe it’s not the company’s fault, but the contact person’s. For them, follow-up questions from builders are too labor-intensive. Another consultant might have printed out 4 pages of technical data and said 3 sentences.

That is correct. In this respect, it might be worthwhile to report the sales person to the headquarters. I would not accept that some freelancer without any customer focus casts a bad light on my company.

I have responded here by email and copied the head of sales. Let's see if and how it will continue. However, my enthusiasm for further cooperation has dropped rapidly and is only not at zero yet because of the [Grundstück]. I will also write a detailed review on Google about the consultant. But now back to the topic...

If someone reacts so thin-skinned to an inquiry, it probably isn't without reason.

They simply don't feel the need to deal with customers who ask too many questions at the moment...

I had some rather strange experiences with this provider more than three years ago. We also wanted one or two extras, and although the representative noted our wishes, he never contacted us again. Many weeks later, a new representative called who had somehow obtained our data and wanted to start all over again. We then politely declined.