Gas or heat pump? Experiences / Feedback

  • Erstellt am 2019-04-24 08:41:28

Lumpi_LE

2019-04-24 13:27:14
  • #1
It can certainly be viewed critically, but the tendency seems realistic to me.
As Rotor, I could also say:
Air-to-water heat pump for 33k€? It actually costs much less.
COP of 2.8? Very unrealistically low.
So the author apparently does not like air-to-water heat pumps...
 

halmi

2019-04-24 13:31:27
  • #2
I see it like Ares83, gas is calculated comparatively cheaply here compared to the rest. Partly radiators, gas connection very cheap (costs almost twice as much here with us), storage with fresh water system at the pumps, the photovoltaic system is actually undersized and too expensive, AZ too low, and so on.

However, when it comes to electricity prices, apples, pears, and tomatoes are mixed.
 

boxandroof

2019-04-24 13:33:04
  • #3
The costs are individual, you can only calculate that yourself. Is self-performance possible? What is offered to me, etc.

For us, with little self-performance, the air-water heat pump was already cheaper than a gas heating system. No gas connection, no chimney. A heat pump is not a miracle device and can be done for under 10,000€, an air-water heat pump can be significantly cheaper.

The operating costs for gas would be about twice as high for us as now with the heat pump
- Heat pump 360€ for electricity per year, no maintenance or other costs. Costs can be slightly reduced again through photovoltaics
- For gas it would be about: 460€ for gas + basic gas fee + chimney sweep + maintenance

If I had had to buy the heat pump from the heating installer for 20,000€, then the calculation would look different.

I also think that a heat pump does not last quite as long as a gas boiler, but that is just my unsubstantiated opinion. But even if our heat pump broke down every few years, nothing would change in the calculation for us.

Gas has the advantage that it does not require precise planning and as a builder you don’t have to deal much with heating planning.

If you plan properly and are not at the mercy of an expensive heating installer/general contractor, then I find heat pump + photovoltaics the most sensible type of heating currently in new buildings – economically and ecologically.
 

Snowy36

2019-04-24 13:41:45
  • #4
One more question: Are you planning to include a fireplace?

Just from a comfort perspective: if you have a fireplace anyway and can quickly warm up with it during transitional seasons, that's great.

If not, I would prefer gas, since you can also put a radiator somewhere in the bathroom or something to keep it warm there...

Just with an air-to-water heat pump and underfloor heating, the whole thing is a bit uncomfortable depending on how you feel. And I wouldn't really feel like using electricity to warm up the bathroom in winter when the photovoltaic system is working at its lowest...
 

tumaa

2019-04-24 13:44:21
  • #5


I have planned a chimney flue for the living area, so just the preparation, wanted to keep my options open.
 

Nordlys

2019-04-24 13:44:54
  • #6
Fireplace, almost all new buildings around have a chimney and stove or fireplace. Nothing ever smokes there. No one keeps wood in stock, why should they, such an [Energieeinsparverordnung Palast] is already so warm, you certainly don’t heat additionally with a stove.
 

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