Different types of water heaters consume power quite differently. 

In the energy industry, "CoP" typically refers to "Coefficient of Performance." It is a measure of the efficiency of heating and cooling systems, particularly heat pumps and air conditioning units. The CoP is defined as the ratio of useful heating or cooling provided to the energy consumed.

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For example:

• A heat pump with a CoP of 4 means that for every unit of energy consumed, it provides four units of heating or cooling.

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A higher CoP indicates a more efficient system, making it an important factor in assessing the performance and sustainability of energy solutions.