Changing heating Temperature

My the PulsaCoil heater, I think is too high. I can hear the water bubbling away. And when its comes out its far to hot. Is there a gauge where I can change the temp setting

Many thanks and Regards
Zahed

Hi;
You could have a faulty rod stat.
Or the temp sensor could be faulty.
As for noise these units can be noisy.
You could drain some water out.
And add a litre of inhibitor and a bottle of boiler silencer.
This will quieten the unit down in most cases.
Mike ( Norwich )

If the boiler is causing the header tank to boil releasing steam in your cupboard then the rod/rods most likely will be faulty. If not then the system is heating correctly and you can expect to hear some noise.