Laundry
Heat Pump vs Conventional Dryer: Running Cost
Compare heat pump and conventional electric dryers using cycle kWh, load frequency, purchase premium, and matching dryness rather than runtime alone.
Compare complete-load kWh for suitable models and the same drying result. Lower electricity use may offset a price premium over time, but calculate it from your inputs.
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A heat pump dryer can use less electricity while taking longer to finish a load. Longer time does not necessarily mean higher cost, because its power and heat-handling system differ.
ENERGY STAR's dryer guidance describes heat-pump recirculation and rated efficiency. Compare actual model data, rather than assuming every heat pump model has the same consumption.
Match the drying task
Choose appliances that fit your laundry volume, space, electrical supply, and installation requirements. Check drainage, venting, maintenance access, and required room conditions in each manual.
Compare similar loads and final dryness. If one result leaves clothes wetter, its lower kWh does not represent the same completed task. Include any extra drying needed.
Do not compare an electric-only figure with a gas dryer while excluding the gas. This guide's running-cost comparison concerns electricity under clearly stated assumptions.
Use energy rather than time alone
A conventional dryer's heater can draw more power over a shorter period. A different design can draw less over a longer period. Complete-load kWh captures that difference better than duration.
Use energy from comparable label tests, reliable model data, or a safe measurement. The European Commission's dryer page explains current per-100-cycle labels. Divide those values by 100 for the standardized cycle average.
Keep old annual labels separate unless their cycle assumptions are known. Test standards and load sizes need to match before you call a comparison precise.
Calculate energy savings and payback
Consider two hypothetical options using 3.0 and 1.2 kWh per comparable load. The difference is 1.8 kWh. At an example $0.20/kWh, the lower-energy option saves $0.36 per load.
At four loads a week for 52 weeks, that is 0.36 × 4 × 52 = $74.88 per year. A hypothetical $600 purchase premium takes about eight years to recover from that electricity difference alone.
Apply this example method to your chosen models. Use comparable cycle data, your weekly load count, your tariff, and the actual purchase-price difference.
Distinguish two buying decisions
If you need a dryer anyway, compare the extra cost between suitable choices. If your existing dryer works safely, comparing replacement with keeping it usually requires the full replacement cost.
The FTC's appliance guidance encourages comparing energy and purchase costs. Installation, disposal, repairs, and useful remaining life also affect a replacement decision.
Do not use only the price premium when the alternative is spending nothing on a new appliance. That would understate the amount to recover.
Check ownership practicalities
- Confirm capacity, supply, space, and installation needs.
- Compare like-for-like cycle energy and dryness.
- Apply your load frequency and local tariff.
- Add relevant upfront costs and maintenance needs.
- Consider whether the expected payback fits your intended ownership period.
Use the comparison calculator with annual energy values derived from your chosen cycle assumptions. Simple payback excludes future electricity prices and financing. Treat it as one check within the decision.