Short answer: Some radiators need changing for a heat pump and some do not; the answer depends on whether each room can stay warm at lower heat pump flow temperatures after heat loss and radiator output are checked.

Heat pumps work best when each room can be heated properly at lower flow temperatures.

Some homes already have enough radiator capacity. Others need bigger radiators or selected upgrades so the system can run comfortably without being pushed too hard.

The answer comes from room-by-room heat loss and emitter checks, not a quick guess from the age of the property.

Ready to check your own home? Start with a design consultation so the next step is based on the property, not a generic online assumption.