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How do convectors differ from traditional radiators?

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In a thermoelectric generating system a heat source—usually fueled by coal, oil, or gas—is used within a boiler to convert water to high-pressure steam. The steam expands and turns the blades of a turbine, which turns the armature of a generator, producing electric power. A condenser converts any remaining steam to water, and a pump returns the water to the boiler.
heating In a thermoelectric generating system a heat source—usually fueled by coal, oil, or gas—is used within a boiler to convert water to high-pressure steam. The steam expands and turns the blades of a turbine, which turns the armature of a generator, producing electric power. A condenser converts any remaining steam to water, and a pump returns the water to the boiler.

While traditional radiators are often perceived as the primary source of heat in older buildings, they function differently than modern convectors. A radiator transfers heat through its hollow sections, relying on natural air currents where ambient air enters from below, warms as it rises between the sections, and discharges at the top.1

Convectors differ from radiators in two primary ways:

  • Surface Area: Convectors utilize a smaller heat-transfer surface compared to the larger, exposed sections of a traditional radiator.1
  • Design and Airflow: A convector consists of finned pipes or coils housed within a cabinet. This enclosure is specifically designed to direct a stream of warmed air through the room using a chimney effect, where air flows upward over the heating surface and is discharged at the top, while cooler air reenters at the base.1

Because of this design, convectors are frequently installed along external walls or windows to effectively counteract drafts and heat loss from cold surfaces.1