Personally think that the unit is the Joule heat can be a little confused.
To make heat, refrigeration units with "kW" to indicate, is the industry's peer approach;In fact, here said "heat", "refrigeration capacity" is "refrigeration capacity", "heating capacity", that is, within the unit time, under certain environmental conditions can provide cold heat;
1kW system of heat refers to within 1 hours, you can make 100 liters of water at room temperature is heated up 8.6 degrees Celsius, the amount of water added to the water is 1kW.
Heat pump heat generation refers to the heat pump in the nominal operating conditions and under the conditions of operation, the unit per hour to be heated water heat; the unit is watt (W) or kilowatt (kW).
Heat 1kW means the amount of heat that is supplied to the heated water at 1kW per hour.According to section 3.15 of [GB_T 23137-2008 household and similar heat pump water heaters, definitions
