In the domestic environment, usually the meter installed has a limit of 3 kW / h and follows a charging system directly proportional to consumption: the higher the consumption of electricity, the greater the rate per kW / h.
The connection of small heat pumps (Within one kilowatt / hour consumption as the 'Air Combo) Does not create problems either load or tariffs.
In the case of heat pumps used for heating and air conditioning throughout the house, the power required by the heat pump would require often an increase in the existing meter.
However, a substantial power consumption on household meter rates would result in less convenient.
Therefore in these cases suggest the activation of a "second counter" that follows a fixed rate, regardless of the consumption. This option increases the convenience of the heat pump.
If you want to do the insights on heating with heat pump, You can find valuable information at the following links: