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
@Keks unfortunately, your information is quite meaningless, I have to say. To compare energy consumption, you would at least need information about the approximate size, insulation standard, location, type of building, etc. Also, details about what share of the electricity costs is for heating, since some people use 5 kWh of electricity per day for the household and others use 20 kWh (for example, with small children and two full loads of washer and dryer per day), or there are four older daughters who shower constantly. I would also like to know the electricity prices; I pay about 25¢ per kWh in total.
The low humidity simply results from heating the dry outside air, which lowers the relative humidity. Humidity recovery is only possible with a controlled mechanical ventilation system.
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The low humidity simply results from heating the dry outside air, which lowers the relative humidity. Humidity recovery is only possible with a controlled mechanical ventilation system.
Sent from mobile
M
meister keks28 Jan 2017 23:29@lauroon
unfortunately not.
@Saruss
that’s true, it’s hard to make much use of that.
to be honest, I don’t know my insulation standard.
regarding electricity
I will find out the basic charges in the next few days with the bill.
regarding mechanical ventilation with heat recovery (MVHR)
what do you mean by “on the move”?
I have a mechanical ventilation system, and the builder said that the humidity cannot be controlled.
I’ll try with the details.
120 sqm (1290 sq ft) of living space
timber frame construction with 2 floors
insulation standard rather low
location? what do you mean by that?
2 people
unfortunately not.
@Saruss
that’s true, it’s hard to make much use of that.
to be honest, I don’t know my insulation standard.
regarding electricity
I will find out the basic charges in the next few days with the bill.
regarding mechanical ventilation with heat recovery (MVHR)
what do you mean by “on the move”?
I have a mechanical ventilation system, and the builder said that the humidity cannot be controlled.
I’ll try with the details.
120 sqm (1290 sq ft) of living space
timber frame construction with 2 floors
insulation standard rather low
location? what do you mean by that?
2 people
If you have an LLWP, they usually mean the type with "controlled residential ventilation." The issue is the technology itself: the air-to-air heat pump generally uses the exhaust air from your house and extracts heat from it, including latent heat, then heats the outside air and distributes it inside the house. Because of this method, humidity cannot really be regulated—it simply becomes dry. Most manufacturers offer a dedicated controlled residential ventilation system with humidity recovery, which helps prevent the air from becoming too dry.
Do you have a separate electricity meter for the heating system, or does it have a display? This would be useful for comparing heating costs, as it allows for differentiation.
120 square meters (1,292 square feet) and a timber frame construction provide a starting point. Generally, these buildings are reasonably well insulated overall.
The number of occupants is important due to hot water consumption.
Location simply means the region, to get an idea of the typical temperatures. For example, a wine-growing area like Mosel might be milder than deep Bavaria.
Do you have a separate electricity meter for the heating system, or does it have a display? This would be useful for comparing heating costs, as it allows for differentiation.
120 square meters (1,292 square feet) and a timber frame construction provide a starting point. Generally, these buildings are reasonably well insulated overall.
The number of occupants is important due to hot water consumption.
Location simply means the region, to get an idea of the typical temperatures. For example, a wine-growing area like Mosel might be milder than deep Bavaria.
M
meister keks28 Jan 2017 23:55Then we'll probably have to live with the dry air.
I only have one meter. The system does have a control panel, but I haven’t found any consumption information there yet.
So I can only read the meter.
But the refrigerator and similar appliances are always running.
The location is in Carinthia, Austria.
I only have one meter. The system does have a control panel, but I haven’t found any consumption information there yet.
So I can only read the meter.
But the refrigerator and similar appliances are always running.
The location is in Carinthia, Austria.
I would also be interested in your opinion on the acoustic insulation. How "soundproof" is the house? Can you hear music upstairs without it being noticeable downstairs? How loud are passing cars, roughly speaking? I have read that in timber houses, high-frequency sounds are filtered out quite well, but low-frequency noises like bass or car engines can be heard very clearly.
M
meister keks30 Jan 2017 08:23Generally, it is quite noisy. There is no comparison to the old apartment in the solidly built house.
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