Hello everyone,
After careful consideration, we have decided to build a house using the "Lego" principle. Unfortunately, we have found very few suppliers online (actually only one) that also offer some level of support. It is important to us to always have a contact person available and to have someone present during the wall casting process. So far, we have only been able to find the company Argisol for this.
Do you know of any companies in the northern German region that offer this building method?
When I look at websites like VariantHaus or similar, it seems they only provide the materials, and the builder is then left completely on their own.
After careful consideration, we have decided to build a house using the "Lego" principle. Unfortunately, we have found very few suppliers online (actually only one) that also offer some level of support. It is important to us to always have a contact person available and to have someone present during the wall casting process. So far, we have only been able to find the company Argisol for this.
Do you know of any companies in the northern German region that offer this building method?
When I look at websites like VariantHaus or similar, it seems they only provide the materials, and the builder is then left completely on their own.
B
Beno341235 May 2019 16:51There are several points to consider.
1. My wife wants a fireplace in the living room. Personally, I don’t think it’s necessary.
2. Many friends have built houses according to current standards, and despite automatic shading systems, it still gets very warm in the summer. That’s why it was clear to us that an air conditioning system is definitely needed. Being able to easily add heating in winter is even better. Also, the controlled ventilation system requires preheating or cooling.
3. Domestic hot water through tube collectors, including pool heating, speaks for itself.
4. A wind turbine is much more efficient than solar panels because it does not depend on the sun’s position but on wind conditions such as speed and airflow. Usually, where a lot of energy is needed, there is also a lot of wind available. Finally, it is virtually maintenance-free, and the few moving parts can be easily replaced after 20 years.
These points are given. So, it’s a simple calculation. With an average wind speed of 4 m/s (9 mph), the system would produce about 7000 kWh per year. If you use all of this yourself for heating and an electric car, you save roughly 2000 euros per year. This means it would pay for itself in 7.5 years. However, I’m not counting on that.
1. My wife wants a fireplace in the living room. Personally, I don’t think it’s necessary.
2. Many friends have built houses according to current standards, and despite automatic shading systems, it still gets very warm in the summer. That’s why it was clear to us that an air conditioning system is definitely needed. Being able to easily add heating in winter is even better. Also, the controlled ventilation system requires preheating or cooling.
3. Domestic hot water through tube collectors, including pool heating, speaks for itself.
4. A wind turbine is much more efficient than solar panels because it does not depend on the sun’s position but on wind conditions such as speed and airflow. Usually, where a lot of energy is needed, there is also a lot of wind available. Finally, it is virtually maintenance-free, and the few moving parts can be easily replaced after 20 years.
These points are given. So, it’s a simple calculation. With an average wind speed of 4 m/s (9 mph), the system would produce about 7000 kWh per year. If you use all of this yourself for heating and an electric car, you save roughly 2000 euros per year. This means it would pay for itself in 7.5 years. However, I’m not counting on that.
Beno34123 schrieb:
4. A wind turbine is significantly more efficient than solar panels.Have you checked what the building regulations say about installing a wind turbine?1) A small unit with a lot of mass is recommended as a comfort factor, not as a primary heating source.
2) If done properly, it is usually not a problem. As a supplement, it is best to use core cooling rather than many individual devices.
3) No, it does not work or is only very ineffective.
4) I have no experience with that, but I find it hard to imagine. Is it allowed to build such devices everywhere? Are they as noisy as regular wind turbines?
2) If done properly, it is usually not a problem. As a supplement, it is best to use core cooling rather than many individual devices.
3) No, it does not work or is only very ineffective.
4) I have no experience with that, but I find it hard to imagine. Is it allowed to build such devices everywhere? Are they as noisy as regular wind turbines?
Beno34123 schrieb:
With an average wind speed of 4 m/s (9 mph), the system would produce around 7,000 kWh per year. If you use all of it for heating and an electric vehicle, you would save about 2,000 euros. That means it would pay for itself in about 7.5 years. But I don’t count on that.If it were really profitable and easy, many would do it, so there must be some catch. Common sources mention around 5,000 euros per kW of peak power. To save 7,000 kWh as you want, you would need to install about 8 kW at 4 m/s (9 mph). That means an investment of 40,000 euros. You are assuming an investment of 15,000 euros, which corresponds roughly to a 3 kW system. At 4 m/s (9 mph), that would produce about 2,400 kWh. And 3 kW applies at 10 m/s (22 mph) wind speed. In calm conditions or lower wind speeds, it’s not enough to run an instantaneous water heater or a battery electric vehicle without drawing power from the grid.
Please help an old man who’s a bit out of touch—I’m not quite following what the Passive House discussion from the last few pages has to do with building with formwork block systems. After all, you can insulate extensively even if there is an exterior insulation and finish system (EIFS) behind porous bricks, calcium silicate bricks, or any other masonry construction wall material, right?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
B
Beno341237 May 2019 13:18ares83 schrieb:
If it were really worthwhile and easy, many would do it, so there is a problem somewhere. On common websites, you read about 5000€ per kW of peak power. For the 7000 kWh you want to save, you would need to install about 8 kW at 4 m/s (9 mph). That means an investment of 40000€. You assume an investment of 15000€, which is about a 3 kW system. At 4 m/s (9 mph) that would yield 2400 kWh. And the 3 kW system is for 10 m/s (22 mph) wind. At calm conditions or less, that is not enough for a tankless water heater or an electric vehicle, so you still need power from the grid.Yes, that’s true, I was able to purchase a 2-year-old sonkyo with 7.5 kW for 15k as a display model. Let’s see, I’ll wait and see.
The building permit / planning permission is not approved yet. However, the next house is about 65 m (213 feet) away, and it is a village area with a 40 dB limit. According to the report, the system produces about 35 dB at 8 m/s (18 mph) wind. Very quiet.
One is installed in Immenhausen, northern Hesse; you can look it up on Google Maps. I spoke with the owner, and he is very satisfied. You can hardly hear anything.
And cooling through underfloor heating is not effective. You cannot cool much; otherwise, condensation forms, and we would prefer a real wood floor. So you really cannot compare it to proper air conditioning systems.
But true, we are quite off topic.
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