We are planning a new build. The footprint of the house: 10 x 14.5 meters (33 x 48 feet). Ground floor: a household of two retirees. Upstairs, a self-contained apartment for one person.
Heating options / power supply:
a) standard gas boiler
b) ground source heat pump, electricity from the grid
c) ground source heat pump, electricity from own photovoltaic system and possibly battery storage
d) ground source heat pump, electricity from own photovoltaic system, battery storage, and possibly cloud services
So far, we have no information about the price difference between purchasing a standard gas boiler and a ground source heat pump.
Two construction companies said a standard, affordable gas heating system would be sufficient since houses today are so well insulated that the heating demand is not very high. But is that future-proof?
And if a heat pump is chosen, is it better to have electricity supplied from an own photovoltaic system? With or without storage? In addition, a cloud solution?
Heating options / power supply:
a) standard gas boiler
b) ground source heat pump, electricity from the grid
c) ground source heat pump, electricity from own photovoltaic system and possibly battery storage
d) ground source heat pump, electricity from own photovoltaic system, battery storage, and possibly cloud services
So far, we have no information about the price difference between purchasing a standard gas boiler and a ground source heat pump.
Two construction companies said a standard, affordable gas heating system would be sufficient since houses today are so well insulated that the heating demand is not very high. But is that future-proof?
And if a heat pump is chosen, is it better to have electricity supplied from an own photovoltaic system? With or without storage? In addition, a cloud solution?
An additional cost of up to 10,000 euros for a heat pump is absolutely common and not unusual for general contractors / main contractors (GU/GÜ) and similar. This price usually already includes the costs for solar thermal systems and the building automation system (LAS). This means that despite the sometimes high cost for a necessary on-site gas connection, for example, 1500–3000 euros (about 1600–3200 USD), you will still end up being 5000–7000 euros (about 5300–7500 USD) cheaper with a gas boiler than with a heat pump. (In the case of a GU/GÜ)
Contracting individual trades, architect-designed homes, and similar cases are a completely different matter.
Contracting individual trades, architect-designed homes, and similar cases are a completely different matter.
Specki schrieb:
My opinion on this:
Heat pump instead of gas, because gas is not sustainable for the future, as you already mentioned, even though it might be cheaper initially.
The federal government seems to think differently... otherwise, why would billions be spent on building Nord Stream 2?
Regarding fossil fuels and the climate debate: The existing natural gas network could also be (partly) supplied with biogas in the future.
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