Which gas condensing boiler with domestic hot water

Brötje WGB- E 20/28 H, Weish. WTC Gw15-B +WAS 70 Block - Eco, Wolf CGW-2 14/100 L

... are you expecting any answer here? A little description of the building, etc., and possibly a question formulated in a complete sentence would certainly be helpful and above all polite.

... do you expect any answer here? A little description of the building, etc., and possibly a question formulated in a full sentence would certainly be helpful and above all polite.

We only have 65 characters available for a q u e s t i o n!!! So much for politeness!! I have a prefabricated house built in 1984, living area approx. 110 sqm. " 2 people only shower. Roof newly insulated, new windows, full basement Which gas condensing boiler with domestic hot water is recommended. Brötje WGB- E 20/28 H, Weishaupt WTC Gw15-B +WAS 70 Block - Eco or Wolf CGW-2 14/100 L

The one that can downmodulate the most. Which one that is, you can read from the datasheets. For 110 sqm you practically never need the full power

We only have 65 characters available for a q u e s t i o n!!! So much for politeness!!

The question with information about the background is formulated here in the post and there has been no character limitation so far.
It was not about the thread title.

Have you selected the 3 heating options yourself or were they recommended to you by a professional?

The question about background information is formulated here in the post and so far there has been no character limit.
The title of the thread .. that was not the issue.

Did you pick out the 3 heating variants yourself or were they recommended to you by a professional?

I picked them out myself, with Buderus GB 162-25 T 40 S (8 years old) I have already had many repairs despite maintenance. So Buderus is not acceptable to me.