Air source heat pump, unvented cylinder with underfloor heating.
When calling for hot water the flow pipe gets quite hot but when calling for heating thw temp drops considerably.
Is this normal? Why would this be apart from the cylinder will need to be heated quicker?
When calling for hot water the flow pipe gets quite hot but when calling for heating thw temp drops considerably.
Is this normal? Why would this be apart from the cylinder will need to be heated quicker?