There is no "drying heating element" in dishwashers. Disassemble one and see for yourself. The same coil is used both for water heating and air heating during the drying cycle.
And I've so far had no problem with dishwashers drying my dishes.
> The same coil is used both for water heating and air heating during the drying cycle
Sure, if it's the classic design of the heating coil sitting exposed near the bottom of the wash tub.
But most newer dishwashers tend to have a much smaller heating element as part of the sump assembly, capable of heating the water only, because they omit the heated dry cycle. From what I've seen these days, you have to buy one without the Energy Star label to get back the traditional dual-use heating element.
And I haven't researched, but I'd venture a guess that those models are just the old designs still being sold, leaving out straightforward efficiency developments like electrically commutated motors. I've fixed many appliances myself, and based on what I've seen I have got little faith in manufacturers' motivations to improve much on their own.
There is no "drying heating element" in dishwashers. Disassemble one and see for yourself. The same coil is used both for water heating and air heating during the drying cycle.
And I've so far had no problem with dishwashers drying my dishes.