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

We have also installed a towel radiator. It is clear that it will not get very warm at the maximum supply temperature of 35 degrees (underfloor heating). For this reason, we have equipped it with a heating cartridge that then heats this radiator. It is installed directly next to the washbasin and will create a "heat peak" when desired. This will usually be the case during transitional periods.

Warming towels is just a side effect.

We have a towel radiator (electric with heating cartridge) as an additional heating to the low-temperature underfloor heating. We have connected a timer switch and set it so that the towel radiator turns on every morning one hour before getting up. We have it really nice and warm every winter morning.

Yes, a gas heating system has a higher flow temperature - and a HKK can very well function as an auxiliary heater. It just has to be properly designed.

I am admittedly no plumber - however, underfloor heating usually does not care whether the required water is heated by gas or heat pump. So how do you come to the conclusion that a gas heating system would require a higher flow temperature with underfloor heating? Rhineland greetings

It does not require them, but usually the water is heated to a higher temperature (40-55 degrees). And especially with a towel warmer, a higher flow temperature is needed anyway. With a heat pump, it is very inefficient to size the heating system based on the bathroom.

Good evening,

She does not require it, but usually ...

Usually ...?

Greetings from the Rhineland

Good evening,


As a rule ...?

Rhineland greetings

I also doubt the statements ... But at the moment I am not involved enough to contribute to the topic ...