A chimney appliance draws the required combustion air from the room and requires a chimney to exhaust the flue gas.
The circulation pump ensures the transport of the heated and cooled liquids within the heating circuit.
Compresses the gaseous refrigerant of the heating pump at high pressure.
The condensing boiler cools the flue gases down so that there is condensation of the steam contained in the flue gas. The heated steam is then used for heating.
The condensing boiler specifies how much heat can be used for the combustion of the fuel. In condensing technology, the steam is condensed into flue gas in order to be able to use the condensation heat.
Procedure for hot water heating during which the water is heated as it flows through the appliance.
Its task is to regulate ("control") the customer's individual temperature desires for heating and hot water heating. The control can also incorporate other systems such as solar heating systems.
see room temperature-controlled control
see outdoor temperature reset control
Coefficient Of Performance (COP). Ratio of usable energy to energy produced. Ex: CoP4 means that in order to be able to use 100% energy, 25% must be produced with the result that 75% of the energy from the environment is available free of charge.