Air heat pump and electricity consumption

Well, if you now know what you want to do, then everything is settled

The fact that I am not convinced by "first go full throttle and then see what happens in 10 years" unfortunately does not mean, conversely, that I know what I want to do. It's not that simple.

That I am not convinced by "step on the gas first and then see what happens in 10 years" unfortunately does not mean, conversely, that I know what I want to do. It's not that simple after all.

It has all already been written: make a decision based on the heat load calculation. There are already many posts about the advantages and disadvantages of an air or ground source heat pump – just search a bit.

Here it is always about heat pumps. But as far as I understand, there are different types of heat pump systems. Does any of you have an exhaust air heat pump?

I don't have one myself, but what you can read from many problem cases in relevant forums is that the house should be at least KFW55 or better in order for this system to work satisfactorily and economically...

Thanks for the tip. I still have quite a bit to read and have little overview so far.

Heat load calculation certainly isn’t everything yet.

First the basic question of which technology you want: oil, gas, heat pump. Then which type of heat pump: whether air/ground/deep, etc. If you then go with air, there are probably cheap stuff, standard, and luxury variants again, but all of which would fit the heat load calculation. Surely there isn’t only one manufacturer and one model. But in the initial overviews of the providers, it is always only about air heat pumps, and as is often the case, the advertised price probably only applies to the cheapest model. Just as houses with brick facades are often pictured in the images, with the note that the price applies to a plastered facade.

And maybe there is something like that which can be compared to certain models from Skoda, VW, and Audi. All offer roughly the same, but differ extremely in price depending on image and target group.

Finding the right one is certainly not easy.

I don't have one myself, but what you can gather from many problem cases in relevant forums is that the house should be at least KFW55 or better for this system to work satisfactorily and economically...

Yes, I have seen that too. Why is that not the case with air-to-water heat pumps? They do take the air from outside.

Yes, I saw that too. Why is it not like that with air-to-water heat pumps? They do draw the air from outside.

In an air-to-water heat pump, the medium of energy transfer is not the air but the water or the brine in the underfloor heating system. Here, heat transfer is more effective than with air...