ᐅ Converting or disconnecting towel warmers to electric operation

Hello,
after living in our newly built house for some time, I am currently looking into the heating system.
We have, among other things, a towel radiator with a central connection that is also connected to the underfloor heating. I now know that this setup is not ideal.
What has prompted me to take action soon is the fact that the water in the tubes of the radiator manifold is quite yellow to brownish, which I attribute to rust coming from the towel radiator.

The question now is what to do?
Two options come to mind:
- Convert to electric heating if possible. I have a power outlet right next to the towel radiator. Is this possible with any towel radiator? I don’t know which model or manufacturer is installed. Is this something a layperson can manage? I have no knowledge in this area.
So either an electric heating element or a completely new towel radiator.
- Disconnect the towel radiator so it no longer runs through the underfloor heating and becomes just "decorative." What do I need to do for that? Just tighten the connection with pliers?

What do you think?