Noticeable cooling effect in air-to-water heat pump

We were told that this does not work in combination with an air-water heat pump. Probably they told us nonsense again here.

I don't even understand how they come up with this nonsense. Except maybe because of the energy saving ordinance or KfW requirements.

Nothing special, we already have the values without cooling function through the air-to-water heat pump. What should be done, most have already written as well. Besides, are you really eager to run the air-to-water heat pump all year round!?!

Hello everyone,
we have been using the cooling function of the air-water heat pump for a few days. At a perceived 38 degrees, we have 22-23 degrees on the ground floor and between 24-26 degrees on the upper floor. I had hoped that the cooling effect would be more noticeable.
...

I would be interested in the "rotation speed" of your electricity meter ;)

We have discussed the topic several times. The effect is minimal, so it is better to have a proper air conditioning system….

Well, with a proper air conditioner you simply bring in more cold. The efficiency is similar but more than 25 KWh is not possible for me, then the floor gets too cold (condensation...) A MonoSplit air conditioner does that in about 5 hours.

So if you have enough time to cool the whole house with one device, you can also use the air heat pump. Only then you don't have dehumidification.

That should also be considered. I consume about 5 KWh per day (from the photovoltaic system on 140sqm) and in recent years with sufficient shading was able to keep the temperature below 25 degrees even in midsummer. Anyone who wants more has to install an air conditioner, but logically the power consumption will then also be higher.

I would be interested in the "rotation speed" of your electricity meter ;)

That remains to be seen. We've only been testing all of this for a short time.

Nothing special, we already have these values without the cooling function through the air-water heat pump. Most have already written what should be done. Besides, do you really want to run the air-water heat pump all year long!?!

If it's not worth it then of course not. We were promised a cooling of 6-8 degrees. The home builder as well as the heating company.

Masoned walls (e.g. brick or even better sand-lime brick) and a reinforced concrete floor ceiling. Roof ideally with insulation between the rafters made of wood fiber boards. Lots of mass means lots of temperature buffering. However, if you let it heat up once, it's too late, you have to consistently keep the windows closed during the day and keep the shading down

Well, we have YTONG, the floor ceiling is concrete and we have a cold roof (i.e. no insulation between rafters or similar).

I have basically always said that if I build, then only with air conditioning. The air-water heat pump with cooling function was the only reason why I decided against it. Now I will probably have to get a mobile air conditioner for the really hot days after all.