ᐅ Local heating network or heat pump – advice and experiences?

Created on: 1 Aug 2022 13:03
S
se_na_23
We are currently deciding between district heating and an air-to-water heat pump...
Our house will be built on a slab foundation according to the KfW55 standard and has a total area of 155 sqm (1,669 sq ft), including the technical room.

The district heating (biogas) costs are as follows:

Connection fee (one-time): €7,794.50
Annual basic charge: €416.50
Energy price per kWh: €0.893 – fixed price until 12/31/2031

The lump sum price from the general contractor (GC) already includes a stratified water storage tank and fresh water station.
If we choose an air-to-water heat pump (from Buderus), the GC charges an additional €12,111.

Unfortunately, we do not yet know our heating load. A budget for photovoltaic panels will probably not be available in the first five years.

Can anyone with expertise help us decide what to do or advise where we can seek consultation?
We are quite uncertain.

Thank you very much.
Patricck25 Sep 2022 22:56
You get the same with district heating, but above 100,000 euros there’s a difference.
And why 600 liters? Is that for a 10-person household?
We have 200 liters for two people, and even with the mother-in-law, it’s not empty.
600 liters also need to be heated.

And you have hot water with district heating too, right?

So for me, it wouldn’t be a discussion between 20,000 and 112,000.
se_na_2325 Sep 2022 23:17
Patricck schrieb:

And why 600 liters?

The operator requires it this way. I have to provide a storage tank with at least 600 liters (160 gallons)... exactly, it needs to be heated 365 days a year, which drives the costs up.
Patricck26 Sep 2022 06:33
Oh yes, that wasn’t an issue for us. In our case, it was about the maximum heat demand, otherwise it becomes more expensive, but there were no requirements regarding how to connect at the handover. But 600 liters (160 gallons) is nonsense, even for 4 people.
se_na_2326 Sep 2022 08:05
Of course, that's clear, but I assume they want it so that the system can be throttled if needed...

You basically have two circuits at the transfer station – one for underfloor heating and one for the fresh water station.
Patricck26 Sep 2022 08:46
Yes, I have as well, and the supply temperature is definitely around 80 degrees Celsius (176°F).
I experienced a brief drop in heat once, but I hardly noticed it.
Malle Zwabber19 Oct 2022 15:00
Hello,
I would like to briefly join the discussion here.
I am currently building as well and have the option to connect to the local district heating network in our village.
The costs are as follows:
- €4,600 cooperative share
- €4,800 transfer station
- €60 monthly base fee
- €0.07 per kWh consumption
A monthly prepayment of €150 is planned.

With these prices, I don’t have to think twice about whether a heat pump will eventually pay off.