Additional costs equal ZERO

Hello, The basic concept is quite good, but it assumes that all the framework parameters fit an air heat pump and the entire system is precisely sized/calculated. Additionally, the respective COP and performance curves of the manufacturers must be taken into account. An annual performance factor of ~3.5 should then be possible. Best regards.

Exactly, and who can calculate something like that for me? But it should not become passive!

However, unfortunately the ancillary costs will not = 0! ;)

Yes, I think so too, but around 100€ for electricity and water, that would already be great!

Maybe differentiating between power (kW) and energy (kWh) helps a bit? :o

I also read something about that, but didn’t understand it. TomTom1 was right with the photovoltaic system that should supply the air heat pump with electricity.

By the way: For how many people should the 112 sqm (+ basement?) be?

Two more and maybe soon and hopefully not as 3, without basement! Best regards

TomTom1 was right about the photovoltaic system supplying the L-W heat pump with electricity.


Best regards

AHA! How was that again:o?

But as I said, it doesn’t really work.

Otherwise, short and sweet: 112 sqm without a basement is, in my opinion, too small, especially since the living area is never proportional to the costs.

Best regards, TomTom.

But it doesn’t really work - as I said.

And why not?:)
What is the photovoltaic system good for then?

Otherwise, briefly and concisely: 112 sqm without a basement is in my opinion too small, especially since the living space never corresponds proportionally to the costs.

What do you base that on to get the absolute best?

Sorry, but I’ve only been dealing with this for a month and... who, how, what, why, for what reason, those who don’t ask remain dumb :p

I can read, but I’m not so good at searching :D

Best regards

Exactly, and who can calculate something like this for me? But it should not become passive either!

As soon as the building data is fixed, a TGA planner and energy consultant combined in one person. You can send me an email.

...TomTom1 was already right about the photovoltaic system that should supply the L-W heat pump with electricity.

That is almost impossible directly, because demand and supply differ considerably in terms of power. Indirectly through feed-in and consumption, however, it works quite well.

best regards

And why not?:)
What is the photovoltaic system good for then?

What do you go by to get the absolute best out of it?

Sorry, but I have only been dealing with this for a month and.... who what how why, whoever doesn’t ask stays dumb :p

I can read too, but I’m not so good at searching :D

Best regards

Hi!

A photovoltaic system is a kind of equity investment with a good but rather uncertain return. So the electricity is sold.

For direct feed-in, among other things, you would need a huge buffer (storage), since most of the electricity yield then occurs when hardly any heating power is needed (in summer).

As for the living area: in my opinion, a house should be as big as possible – as far as it still makes sense. I had initially planned just under (130 sqm for 4 people). 20 sqm more then only cost 5,000 € (about as much as the front door) and that seemed well invested to me. Every provider calculates differently there!!

Best regards, TomTom.

...A photovoltaic system is a kind of equity investment with a good but rather uncertain return. The electricity is therefore sold.

There is hardly a better guarantee than a state-subsidized and long-term feed-in tariff.

Best regards.