Saving Power at Home & Work

Tumble Dryer

tumbledryerThe graph above shows the way a normal tumble dryer uses electricity. The machine tested was a Hoover Electron tumble dryer. On a particularly cold and overcast winters wash day, the tumble dryer was used to dry a largish batch of clothes. The unit was repeatedly run through its cycle (the temperature was set arbitrarily to about midway) for most of the day. You can see a number of key characteristics:

The tumble dryer is almost entirely a resistive load. The kW and KVA readings coincide almost completely.
Tumble dryers consume quite a lot of power.

The summary figures for the test are:

Max. Power drawn 1.85 kW
Average Power drawn per hour 1.04 kW

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