Problems with controlling the heat pump

I suspect you not only have the Proxon domestic hot water heat pump but also a combined device in the form of an air-to-air heat pump, that is, a central building ventilation system with heat recovery and an integrated heat pump. In every living room there is one (or more) supply air duct(s) (with heating elements for extreme cases) and the "smelly rooms" have exhaust air. That would be pretty much our system.

A wood stove produces significantly more heat than needed in one room in a new building. The ventilation system therefore has a stove mode. From my understanding, this simply means that the ventilation level goes to maximum, which causes the heat to be distributed better throughout the house and ultimately also reduces the effort needed from the heating system. You should therefore use this mode when the stove is on. However, it is not mandatory; nothing is harmed if you don't use it.

Best regards

This is a drinking water heat pump. It does not heat at all, but only produces warm water. This is not (!!!) a heating system. For that, you have another device.

But it is not mandatory, as far as I understand.

You have to ask the district chimney sweep. For me, the "chimney function" in the controlled residential ventilation was a prerequisite for him to waive a pressure monitor in the chimney. An air-to-air heat pump is ultimately no different. The "oven function" will ensure that the ventilation does not create a negative pressure that could lead to the escape of exhaust gases from the wood stove.

For me, the "chimney function" in the controlled residential ventilation was a prerequisite for him to do without a pressure switch in the chimney. An air-to-air heat pump is ultimately no different. The "oven function" will ensure that the ventilation does not create a negative pressure that could lead to the release of exhaust gases from the wood stove.