Hello,
We are planning to build a house, hopefully by the end of the year, and I have already started considering the type of heating system.
It will be a single-family home of about 150sqm (1,615 sq ft) located near Bremen. Currently, there are two of us, but a child will be arriving soon.
After several hours of research on Google and forums, I believe that an air-source heat pump combined with a photovoltaic system and battery storage is the most practical solution. For coziness, a stove is also planned for the living/dining area.
Advantages: no costs for gas connection or gas supply, no expenses for drilling and permits, increased efficiency through self-generated electricity with storage, and you can earn money by feeding surplus energy into the grid. Also, it provides some cooling effect in the house during summer.
Disadvantages: higher initial investment compared to a gas heating system, increased electricity costs in winter when it gets really cold.
My main concern is whether the higher electricity consumption might offset the savings from not using gas. Are there other disadvantages I might have overlooked?
How much more expensive is a photovoltaic system with a battery approximately compared to a conventional gas heating system?
Does the stove support the heating system in any way, or does the heating system maintain its temperature regardless of how warm the room gets?
We are planning to build a house, hopefully by the end of the year, and I have already started considering the type of heating system.
It will be a single-family home of about 150sqm (1,615 sq ft) located near Bremen. Currently, there are two of us, but a child will be arriving soon.
After several hours of research on Google and forums, I believe that an air-source heat pump combined with a photovoltaic system and battery storage is the most practical solution. For coziness, a stove is also planned for the living/dining area.
Advantages: no costs for gas connection or gas supply, no expenses for drilling and permits, increased efficiency through self-generated electricity with storage, and you can earn money by feeding surplus energy into the grid. Also, it provides some cooling effect in the house during summer.
Disadvantages: higher initial investment compared to a gas heating system, increased electricity costs in winter when it gets really cold.
My main concern is whether the higher electricity consumption might offset the savings from not using gas. Are there other disadvantages I might have overlooked?
How much more expensive is a photovoltaic system with a battery approximately compared to a conventional gas heating system?
Does the stove support the heating system in any way, or does the heating system maintain its temperature regardless of how warm the room gets?
T
theundertaker30 Mar 2021 19:48Bookstar schrieb:
Price-performance ratio is definitely in favor of gas. Air-to-water heat pumps are also good, but prone to faults and require a lot of adjustment work.
If a gas line is installed, go for gas. Otherwise, an air-to-water heat pump. The gas line is far away (see above).
In what way is it prone to faults?
I think geothermal energy is still something for enthusiasts who always want something special, due to the high initial costs. There are many advantages to air-to-water heat pumps. Only one thing speaks for the gas boiler: its maturity, operational reliability, and tolerance to user error. It runs smoothly and trouble-free often for over twenty years, something the pumps simply cannot match.
N
nordanney30 Mar 2021 20:07theundertaker schrieb:
What is better with geothermal energy? In winter, you don’t need electric backup heating, but what about other times? First of all, in our lowland regions, you usually don’t need any electric backup heating in winter. That should be a rare exception (normally only below about -10 to -15°C (14 to 5°F), if at all).
But geothermal systems provide consistently good energy consumption and can also cool more effectively (please forget about using an air-to-water heat pump for cooling; if cooling is needed, plan for air conditioning). However, it is considerably more expensive due to drilling costs. For larger properties, a horizontal collector can also be used.
A Passat is good, an E-Class is better.
Nordlys schrieb:
And Ford Fiesta never in the workshop.I always called my Ford Fiesta a Ford Fiasco. In the end, that thing was only ever in the workshop. 🙁For your information only: There was a somewhat longer thread here about six months ago discussing electricity costs. From what I recall, the average annual electricity costs with these heating devices were higher than the average annual gas costs. However, I’m not sure if photovoltaics played a role in that. Feel free to search for the thread yourself and read through it.
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