ᐅ Underfloor heating designed with insufficient capacity – what additional heating options are available?

Hello,
after swapping rooms, I noticed that the underfloor heating in the room now used as the living room is not sufficiently powerful. It was installed as a "bedroom" but is now intended to be a living room.
I will probably need to consider an additional heating option. What possibilities are there?

Infrared ceiling heating. If you want, even with lighting.

Have the flow rates already been adjusted for the new use?
Is it possible to add one more radiator?

RotorMotor schrieb:

Are the flow rates already adjusted for the new usage?
Is it possible to add an additional radiator?

Yes, the flow rate is set to maximum. However, it still does not get warm enough for a living room.

I’m not sure if you can simply add a radiator. Normally, I think you can. The underfloor heating was originally designed as a low-temperature system with radiators. Because I didn’t want the radiator, I had the underfloor heating grooved in and the radiator removed.
I don’t know if the heat pump and heating circuit can supply an additional radiator.

Rübe1 schrieb:

infrared ceiling heating. If you want, even with lighting.

I’m not familiar with infrared heating systems at all. I’ll have to do some research.

How invasive can the whole thing be? There are also ceiling heating systems and wall heating systems. Additionally, there are relatively efficient wall-mounted radiators that operate well at low temperatures.