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Which? Warns Against Drying Laundry on Radiators as Energy Costs and Mould Risks Climb

Wet clothes on radiators impede heat circulation, forcing longer boiler run times that raise mould risk.

Overview

  • An expert from Which? says wet garments act as a barrier on radiators, slowing room heating and driving up bills as systems run until the thermostat set point is reached.
  • Heating supplier OnlyRadiators labels the practice a terrible idea, arguing blocked convection leaves rooms cold and radiators effectively inefficient.
  • Evaporation from indoor drying adds significant moisture to household air, which condenses on cold surfaces and can contribute to damp and mould problems.
  • Suggested alternatives include using an airer placed near a radiator for airflow, opting for an electric heated airer for smaller loads, or using a tumble dryer.
  • Consumers also propose low-energy tactics such as running a ceiling fan to circulate warm air and improving home ventilation or using dehumidification.