Hello,
I am planning to install a ground source heat pump with horizontal collectors in the garden (property size approximately 900 m² (9700 sq ft)), vacuum tube collectors on the south side, and photovoltaic panels on the east side (including a battery storage system that could potentially power the ground source heat pump).
In the living room, I would also like to install a stove connected to the water heating system to contribute to the heating.
What do you think about this combination?
The panels are planned to be distributed as follows:
Vacuum collectors on the garage roof and photovoltaic panels on the house side.
The picture is just an example because of the design.
A spacious double garage is planned, so there should be enough space.
It might also be possible to install some photovoltaic panels on the garage roof and reduce the vacuum collector area slightly.
The garage faces south, and the house side is practically the east side.
How large should both areas be approximately? Are there any subsidies or incentive programs available for both? If so, which ones?
Thank you.
Regards, Michael
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Hello Michael,
I have removed the link; please observe the forum rules. Thank you!
Best regards, Building Expert
I am planning to install a ground source heat pump with horizontal collectors in the garden (property size approximately 900 m² (9700 sq ft)), vacuum tube collectors on the south side, and photovoltaic panels on the east side (including a battery storage system that could potentially power the ground source heat pump).
In the living room, I would also like to install a stove connected to the water heating system to contribute to the heating.
What do you think about this combination?
The panels are planned to be distributed as follows:
Vacuum collectors on the garage roof and photovoltaic panels on the house side.
The picture is just an example because of the design.
A spacious double garage is planned, so there should be enough space.
It might also be possible to install some photovoltaic panels on the garage roof and reduce the vacuum collector area slightly.
The garage faces south, and the house side is practically the east side.
How large should both areas be approximately? Are there any subsidies or incentive programs available for both? If so, which ones?
Thank you.
Regards, Michael
---------------------------
Hello Michael,
I have removed the link; please observe the forum rules. Thank you!
Best regards, Building Expert
There are brine heat pumps with an integrated hot water storage tank of about 150-200 liters (40-53 gallons). This is usually sufficient for a family of four, assuming there are no long, continuous showers or excessive hot water use.
If necessary, the electric heating element can provide direct additional heating, for example when guests are visiting or in similar situations. This is generally more cost-effective and efficient than installing a separate buffer tank or a tankless water heater.
If necessary, the electric heating element can provide direct additional heating, for example when guests are visiting or in similar situations. This is generally more cost-effective and efficient than installing a separate buffer tank or a tankless water heater.
E
ErikErdgas27 Jul 2015 15:17Hello Michael,
reading through the posts in your case creates quite a confusing picture. You probably don’t even know which way is up anymore. That’s why I want to try to shed some light on the situation.
For the installation or renovation of a heating system, the heating load according to DIN 12831 for the building is important. This can be determined by a qualified energy consultant. Based on your information, I assume this is a new build. If that is the case, the energy performance certificate must be submitted with the building permit / planning permission application. The heating load can be at least approximately derived from the energy performance certificate.
The combination of multiple heat generators is technically no problem; a good builder should be able to handle that well.
I find your approach not bad; the goal is maximum use of renewable energy sources, i.e., to become independent. Theoretically good, but practically more difficult to implement. On the one hand, renewable energy sources are available when you don’t need them (summer = electricity and domestic hot water, winter?). This alone argues in favor of appropriate storage. On the other hand, we are talking about quite a considerable investment volume: photovoltaic, solar thermal, controlled ventilation system, heat recovery, brine-water heat pump plus storage! Perhaps it would make sense to implement part of it now and secure options for the rest, for example, by making some preparations for system expansion with empty conduits, surface areas, etc., as suggested by Bieber0815.
As already mentioned, I do not agree with OLEDA222’s opinion. If a solar thermal system is to be installed, a buffer tank must be present. But please not one embedded in the screed as suggested by “BeHaElJa”.
The combination of a biomass stove (logs or pellets) with water jackets combined with a solar thermal system and a natural gas boiler as the peak load in winter strikes me as an ecological and economical perfect solution. In the transition seasons (spring, autumn), the solar system will support the heating; in summer, you will have no consumption (costs) because the sun doesn’t send a bill! The natural gas boiler will ensure it never gets cold in winter when the stove is not fired up because you don’t feel like it or are on vacation.
Best regards, Erik
reading through the posts in your case creates quite a confusing picture. You probably don’t even know which way is up anymore. That’s why I want to try to shed some light on the situation.
For the installation or renovation of a heating system, the heating load according to DIN 12831 for the building is important. This can be determined by a qualified energy consultant. Based on your information, I assume this is a new build. If that is the case, the energy performance certificate must be submitted with the building permit / planning permission application. The heating load can be at least approximately derived from the energy performance certificate.
The combination of multiple heat generators is technically no problem; a good builder should be able to handle that well.
I find your approach not bad; the goal is maximum use of renewable energy sources, i.e., to become independent. Theoretically good, but practically more difficult to implement. On the one hand, renewable energy sources are available when you don’t need them (summer = electricity and domestic hot water, winter?). This alone argues in favor of appropriate storage. On the other hand, we are talking about quite a considerable investment volume: photovoltaic, solar thermal, controlled ventilation system, heat recovery, brine-water heat pump plus storage! Perhaps it would make sense to implement part of it now and secure options for the rest, for example, by making some preparations for system expansion with empty conduits, surface areas, etc., as suggested by Bieber0815.
As already mentioned, I do not agree with OLEDA222’s opinion. If a solar thermal system is to be installed, a buffer tank must be present. But please not one embedded in the screed as suggested by “BeHaElJa”.
The combination of a biomass stove (logs or pellets) with water jackets combined with a solar thermal system and a natural gas boiler as the peak load in winter strikes me as an ecological and economical perfect solution. In the transition seasons (spring, autumn), the solar system will support the heating; in summer, you will have no consumption (costs) because the sun doesn’t send a bill! The natural gas boiler will ensure it never gets cold in winter when the stove is not fired up because you don’t feel like it or are on vacation.
Best regards, Erik
I completely agree with you that a thermal solar system requires a storage tank.
However, I believe that in most cases the solar system itself is unnecessary.
Could you please provide an approximate price for the option you suggested, including all necessary piping, buffer storage, etc., but excluding the underfloor heating, which is required anyway?
A household of 4 people, 6 kW heating load (feel free to also consider 8 or 10 kW if that makes more sense), including domestic hot water. Outside temperature -12°C (10°F).
However, I believe that in most cases the solar system itself is unnecessary.
Could you please provide an approximate price for the option you suggested, including all necessary piping, buffer storage, etc., but excluding the underfloor heating, which is required anyway?
A household of 4 people, 6 kW heating load (feel free to also consider 8 or 10 kW if that makes more sense), including domestic hot water. Outside temperature -12°C (10°F).
So, I did some research...
A brine heat pump including a 200-liter (53-gallon) hot water storage tank would basically work without a separate heating buffer tank.
How is it controlled? Primarily the hot water and secondarily the heating?
In addition, solar panels on the roof and a masonry heater in the living area— I think this setup is the best option for me and still reasonably affordable.
A brine heat pump including a 200-liter (53-gallon) hot water storage tank would basically work without a separate heating buffer tank.
How is it controlled? Primarily the hot water and secondarily the heating?
In addition, solar panels on the roof and a masonry heater in the living area— I think this setup is the best option for me and still reasonably affordable.
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