What process caused the greatest reduction in power consumption efficiency over time?
Answer
The move from immersion-style resistance heating to concealed elements optimizing heat transfer.
While wattage increased over time (e.g., from a typical early 1000-watt element to a modern 2000-watt element), the greatest leap in efficiency—meaning less power wasted—came from optimizing the method of heat transfer. Older, immersion-style resistance elements were inefficient. The move to concealed elements positioned beneath a flat metal plate allows for much better optimization, ensuring that electrical energy is translated into thermal energy directly and effectively transferred into the water, reducing unnecessary energy consumption.
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