Product review (5 stars): Good to make big pot of soup!
Love it. We had it for several weeks. We made big pot of soup (12 quarts) several times with it. Compare with the burner of our range, It takes about the same amount of time to boil water. But the burner of my range is about 2400W. To keep it boiling, I can turn down the power. If it is accurate, I believe that it will save much energy. While  it is in use, only the pot is heated up. There is no radiant heat that warm up the kitchen. It is great.