What is a kilowatt-hour?
June 14, 2006 2:12 PM Subscribe
What is a kilowatt-hour? Or: why is the eco program on my dishwasher better than the normal program?
posted by davar to science & nature (20 answers total)
I googled, and read the Wikipedia and other sites that try to explain this, but I still do not understand it. I would appreciate a for-dummies explanation.
My new dishwasher has two programs. An environmental friendly (eco) program that heats to 45 degrees C and uses 1.05 kWh, and a normal program that heats the water to 50 C and uses 1.2 kWh. The eco program takes 165 minutes, the normal program takes 60 minutes.
Why does the eco program save energy? It seems to me that it goes on for more than twice as long for not that much less energy. What am I missing?