Hello everyone,
Since we are interested in building with Weberhaus, we are currently looking into different heating technologies. Weberhaus offers all houses with an air-to-air heat pump as standard directly from the factory. This is their standard system and is already included in the price. Weberhaus calls this the so-called "comfort heating technology."
What bothers me about this is that it is basically an electric heating system. The heat pump electrically heats the water and also the rooms via air ducts. These air ducts also have heating wires that can be activated if the recovered heat is not sufficient.
I wonder if this is the right technology for us. Here are some disadvantages that come to mind without having experienced the air-to-air heat pump in winter:
1. Air is a poor heat carrier. It cools down too quickly and hardly stores any heat energy. Water is better in this regard.
2. I imagine the air being very dry in winter?
3. Because of the air movement, I imagine there could be increased dust buildup despite filters?
4. The system seems to rely on, or even require, that I do not ventilate myself but leave it to the system? However, occasional airing out (through shock ventilation) is a comfort factor for me (bathroom, bedroom, kitchen, etc.).
5. Electricity prices have only risen over the years (which makes no sense, since we have enough electricity). If electric vehicles become widespread and the government raises electricity taxes similar to fuel taxes, that could be the end of electric heating.
6. Thinking about people who relied on storage heaters in the 70s and now cannot sell their homes, I get uneasy about electric heating...
7. Retrofitting the heating system later, for example to gas or water-based heating, seems likely to be very expensive since everything would need to be gutted.
8. The air outlet vents somewhat spoil the walls for me. Especially with patterned tile wallpaper, I imagine this looks unattractive.
The clear advantage is the price! It seems to be excellent. No other heating technology is available so cheaply.
What else comes to your mind? Do you have any suggestions for me? Of course, I am also interested in experiences from owners of such heating systems.
Good luck
laurooon
Since we are interested in building with Weberhaus, we are currently looking into different heating technologies. Weberhaus offers all houses with an air-to-air heat pump as standard directly from the factory. This is their standard system and is already included in the price. Weberhaus calls this the so-called "comfort heating technology."
What bothers me about this is that it is basically an electric heating system. The heat pump electrically heats the water and also the rooms via air ducts. These air ducts also have heating wires that can be activated if the recovered heat is not sufficient.
I wonder if this is the right technology for us. Here are some disadvantages that come to mind without having experienced the air-to-air heat pump in winter:
1. Air is a poor heat carrier. It cools down too quickly and hardly stores any heat energy. Water is better in this regard.
2. I imagine the air being very dry in winter?
3. Because of the air movement, I imagine there could be increased dust buildup despite filters?
4. The system seems to rely on, or even require, that I do not ventilate myself but leave it to the system? However, occasional airing out (through shock ventilation) is a comfort factor for me (bathroom, bedroom, kitchen, etc.).
5. Electricity prices have only risen over the years (which makes no sense, since we have enough electricity). If electric vehicles become widespread and the government raises electricity taxes similar to fuel taxes, that could be the end of electric heating.
6. Thinking about people who relied on storage heaters in the 70s and now cannot sell their homes, I get uneasy about electric heating...
7. Retrofitting the heating system later, for example to gas or water-based heating, seems likely to be very expensive since everything would need to be gutted.
8. The air outlet vents somewhat spoil the walls for me. Especially with patterned tile wallpaper, I imagine this looks unattractive.
The clear advantage is the price! It seems to be excellent. No other heating technology is available so cheaply.
What else comes to your mind? Do you have any suggestions for me? Of course, I am also interested in experiences from owners of such heating systems.
Good luck
laurooon
I am also active on Hi-Fi-Forum.de, so I know what you mean.
My main concern with heat pumps is that, essentially, they are electric heaters. I wonder why governments are currently promoting them so much. My cynical theory is that the government wants everyone to switch to electric so it can eventually impose a substantial electricity tax (replacing the fuel tax as electric vehicles gradually become more common). This way, they can generate revenue from electricity consumption both for transportation and housing.
But that might not be true—perhaps things will improve, and those who chose gas will be the ones at a disadvantage.
My main concern with heat pumps is that, essentially, they are electric heaters. I wonder why governments are currently promoting them so much. My cynical theory is that the government wants everyone to switch to electric so it can eventually impose a substantial electricity tax (replacing the fuel tax as electric vehicles gradually become more common). This way, they can generate revenue from electricity consumption both for transportation and housing.
But that might not be true—perhaps things will improve, and those who chose gas will be the ones at a disadvantage.
laurooon schrieb:
Elimination of the mineral oil tax by gradually introducing electric vehicles).Bold theory.
As a volunteer local politician, I can reassure you that politicians usually plan only up to two election terms ahead, and the scenario you describe will likely take at least another 30 years to become socially acceptable.
Jokes aside, the subsidy on electricity tariffs (excluding KFW support programs) is temporary anyway. As far as I know, in our region, air-source heat pump tariffs are about 10-15 cents cheaper, so in my opinion, the coming years will lead to a complete adjustment of the pricing structure. Naturally, this will involve increasing prices.
My brother also has one and swears by it. But as soon as you have something like that, the KfW efficiency rating immediately drops. Weberhaus! manages to achieve KfW55 standard with the air-to-air heat pump right from the start. As soon as I want to install the BWT system, the KfW rating becomes irrelevant. To regain it, I would need to opt for thicker walls and add a photovoltaic system on the roof to return to the KfW standard.
Some people think that lighting a flame at 1200°C (2192°F) to heat rooms to 22°C (72°F) is no longer "up to date."
Some people think that lighting a flame at 1200°C (2192°F) to heat rooms to 22°C (72°F) is no longer "up to date."
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