Understand what each control decides
A timed program runs for the selected duration subject to the appliance’s controls. A sensor program uses its detection system and chosen dryness level to decide when to stop. The exact behavior, supported loads and settings depend on the model.
Read the manual before interpreting a remaining-time display as a firm finish time. An automatic cycle may revise its estimate. A countdown changing during operation does not alone mean that the machine is using more electricity than expected.
Compare one complete laundry result
Imagine a timed cycle uses 2.40 kWh and a sensor cycle uses 1.90 kWh for comparable loads with equivalent final dryness. The hypothetical difference is 0.50 kWh, or nine cents at $0.18/kWh. Twelve such loads would save $1.08.
If the sensor load then needs another 0.40 kWh cycle for damp items, the net difference shrinks to 0.10 kWh. Include that second cycle instead of reporting the attractive first result alone.
Control the factors you can
Use similar fabrics, load size and washer spin settings. Check the dryer’s guidance for small or mixed loads and its sensor-care instructions. A heavy towel mixed with light garments can make the definition of “finished” less consistent.
Do not keep raising the dryness target without first checking why results differ. Record both kWh and whether the load was ready to put away. An energy figure without the laundry outcome is an incomplete comparison.
Choose the routine that repeats well
Run several ordinary comparisons rather than treating a single load as a product test. Use appropriate metering or available appliance energy records; never adapt a high-voltage dryer to a household plug meter. If the machine belongs to the building, ask what controls and maintenance are supported. A consistent automatic setting may be convenient even when your measured dollar difference is small, while a timed option can still serve a specific manufacturer-approved task.
Choose your next step
Continue with the question that matches your next decision:
Sources & further reading
Numerical examples are illustrative unless explicitly described as measured. This guide does not claim hands-on product testing. Read the methodology and editorial disclosure.