Is an additional heater recommended in the bathroom with underfloor heating?

I have been too sluggish and too expensive to maintain, that's why it no longer runs.

I am way too sluggish ...

Infrared mirror?

Yes, about 500 watts even in the beam no noticeable effect. After 2 hours, however, the bath is 2 degrees warmer. But that costs.

Yes, about 500 watts, even directly, no noticeable effect. But after 2 hours the bath is 2 degrees warmer. But that costs.

Too bad. It's exactly about not heating the room but shining on the person in front of the mirror.

It's a pity. The point is precisely not to heat the room but to irradiate the person in front of the mirror.

It would be advisable for the person themselves to radiate INTO the mirror, then they will also be irradiated back by the mirror.
Yes, I am equally interested in this, a possibility for an additional heater.

It would be advisable for the person to shine INTO the mirror themselves, then they will also be shone back by the mirror

this can sometimes also be heartwarming, if one has not been out partying the night before