[Johnny B.]

kilowatt hours measures electricity, E-Cat produces heat.

Actually, Watt is a unit of power, regardless of the source of that power.

[Mycroft Holmes]

Energy is power (Watts) integrated over time, hence WattHours are the proper units for energy and Watts the proper units for power. Much of people's confusion is from a misunderstanding of the difference between power and energy.

In order to be able to evaluate the claims properly we have to reduce all of the energy measurements to the same units and realize that power and energy are related but not the same.