Flooring on underfloor heating - Which covering is suitable?

40€ all-inclusive price? Or just the topping 40€?

Take a look at Wineo Purline Bioböden.

40 euros per sqm referred to the material price. But that is my maximum, not the target price.

Wineo doesn't sound bad at all, we'll take a look at it soon - just like the products from Haro Disano.

Linoleum, cork, and carpets are not an option for us.

Any other PVC-free design floors to glue down that someone has experience with?

What about parquet? I find what you read on the internet very contradictory. On the one hand, it is said that it does not harmonize well with underfloor heating, on the other hand, there are also quite opposite reports that speak of an excellent thermal resistance.
What do you think and what is important to consider with parquet? Concrete product recommendations?

What do you have against polyvinyl chloride? It is very durable, flame-retardant, well recyclable, and the dioxin problem during incineration is also under control at the waste incineration plants. Saves a lot of money and suddenly you have a huge selection. Karsten

Parquet and 40 euros don't go together, that won't work well. Especially since for the parquet, almost the same amount comes on top again for preparation and installation.

Exactly. For 40 we don’t have parquet, but better laminate. Carrier layer with some real wood veneer on top plus sealing. That is then not eco either. Solid wood parquet is much more expensive. Starting at about 80. And unsuitable for underfloor heating, since wood insulates instead of conducting heat. Underfloor heating: The fact is, if it is supposed to do what it can: heat economically: vinyl, tile, linoleum, carpet. All glued onto leveling compound. That’s how it is. Karsten