Underfloor heating in the bathroom not possible - can that be?

What always works is an electric underfloor heating system in the bathrooms. It is not particularly efficient, but it is hardly ever used either. The mat placed under the tiles shouldn't interfere with the construction. I want to see how heating efficiently with radiators using an air heat pump at -5°C works. Why not just a gas boiler?

Air source heat pump should be able to do it, a colleague has one, it works for him too! We don't want gas, it would only have been an option with a natural gas connection.

That is possible, no question. But an air heat pump is designed for low flow temperatures and thus for underfloor heating systems. But the general contractor will hopefully offer suitable radiators. Still, with radiators, especially at low outside temperatures, it will simply become less efficient. I was assuming natural gas, I wouldn’t want to have a gas tank either. Underfloor heating everywhere would be better overall, although I can understand your wife, I also don’t like warm floors. Trench collector or deep borehole are not an option? They are less sensitive to cold.

If I remember correctly, a user spoke to his wife about the same problems a few weeks ago. He implemented a ceiling heating.

It's just not for the standard general contractor.

Why not pellet and radiator?

We have a prefabricated house and screed in the bathroom and flush with the floor, why should that not be possible?