Method for operating a hybrid combination heater and hybrid combination heater

Abstract

The invention relates to a method for operating a hybrid combination heating appliance (200) for tempering a heating water flow (1) and a domestic hot water flow (2) with a space heating mode and a domestic hot water mode. A heat generator (206) and / or a heat pump heat exchanger (202) connected in series in a heating water circuit (208) heat the heating water flow (1), wherein the heat pump heat exchanger (202) can be connected to a heat pump (300) on the secondary side. When a domestic hot water demand occurs, the hybrid combination heating appliance (200) switches, particularly immediately, to a domestic hot water mode, whereby the heating water flow (1) is heated and flows, particularly completely, to a domestic hot water heat exchanger (216) connected to the heating water circuit (208).It is proposed that, particularly immediately following operation in domestic hot water mode – when, on the one hand, there is no domestic hot water demand, and on the other hand, there is a space heating demand – the hybrid combination boiler (200) switches to a standby mode for a standby period. During the standby period, the heating water flow (1) is heated and heats and / or keeps warm the domestic hot water present in the domestic hot water heat exchanger (216).

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