Radiators and heat pumps

Can a heat pump work with existing radiators?

Whether existing radiators can deliver enough heat depends on their size, the room heat loss and the water temperature. A house-wide model can compare supported emitter and flow-temperature assumptions, but it cannot inspect the installed radiators.

What to compare

  • The building heat demand at the selected outdoor conditions.
  • Radiator or underfloor distribution and its modeled flow temperature.
  • Heat-pump performance at those operating conditions.
  • Comfort results alongside electricity use.

What still needs a site check

A room-by-room heat-loss calculation and radiator output check are needed to confirm a real installation. The simulation does not certify hydraulic balance, pipework, emitter condition, noise or manufacturer compatibility.