Hello everyone,
My husband and I attended a home exhibition today featuring a local timber house builder (Schleswig-Holstein) and there we learned about the Vestaxx window heating system.
Is there anyone here who has experience with the Vestaxx window heating?
At first, it sounds unusual to have the heating integrated into the windows. For the triple-glazed windows, a nanotechnology-based, invisible layer is applied to the inner surface of the innermost pane, which warms the glass up to 40 degrees Celsius (104°F) via infrared and heats the room. The warmth actually felt very comfortable, and the windows were completely cold on the outside (today’s temperature was below 10 degrees Celsius (50°F)). Allegedly, the Vestaxx window heating transfers 92% of its heat to the room, and the Technical University of Berlin has tested this Vestaxx window heating system and rated it positively. It appears to have been on the market only recently.
Overall, I find this quite interesting. It is significantly cheaper than other heating systems, allows individual control of each room, and unlike underfloor heating, it is very responsive.
Of course, this only makes sense in a low-energy house (the timber builder mainly constructs 40+ standard homes), as the system runs on electricity. In that case, the Vestaxx window heating is said to consume very little power.
This is my impression from the expo; of course, they want to sell the system.
What are your experiences with Vestaxx? Have you heard of this system before? Could it be an alternative to conventional heating? Does it have a future?
My husband and I attended a home exhibition today featuring a local timber house builder (Schleswig-Holstein) and there we learned about the Vestaxx window heating system.
Is there anyone here who has experience with the Vestaxx window heating?
At first, it sounds unusual to have the heating integrated into the windows. For the triple-glazed windows, a nanotechnology-based, invisible layer is applied to the inner surface of the innermost pane, which warms the glass up to 40 degrees Celsius (104°F) via infrared and heats the room. The warmth actually felt very comfortable, and the windows were completely cold on the outside (today’s temperature was below 10 degrees Celsius (50°F)). Allegedly, the Vestaxx window heating transfers 92% of its heat to the room, and the Technical University of Berlin has tested this Vestaxx window heating system and rated it positively. It appears to have been on the market only recently.
Overall, I find this quite interesting. It is significantly cheaper than other heating systems, allows individual control of each room, and unlike underfloor heating, it is very responsive.
Of course, this only makes sense in a low-energy house (the timber builder mainly constructs 40+ standard homes), as the system runs on electricity. In that case, the Vestaxx window heating is said to consume very little power.
This is my impression from the expo; of course, they want to sell the system.
What are your experiences with Vestaxx? Have you heard of this system before? Could it be an alternative to conventional heating? Does it have a future?
S
SaniererNRW1238 Oct 2022 09:56Christian 65 schrieb:
But such a large photovoltaic system must be expensive. It’s not the size of the photovoltaic system that limits costs, but rather the storage issue.
Christian 65 schrieb:
h
No, the calculator doesn’t lie: 23,000 × 3.5% = 805 × 20 years = 16,000Please review the basics of interest calculation. At this level, a discussion doesn’t make sense.
C
chand19868 Oct 2022 10:28OWLer schrieb:
Please review the basics of interest calculation. At this level, continuing the discussion doesn’t make sense. I find the discussion surprisingly mild for such a “hard topic.”
W
WilderSueden8 Oct 2022 12:34SaniererNRW123 schrieb:
Do you really believe that electric direct heating (regardless of the type) has a future? I would bet that this type of heating will be banned in the not-too-distant future, which would end all the recurring discussions here. The energy consumption is simply too high. Maybe it will still be used as an emergency solution in passive houses, but nothing more. I think there will be differences, assuming that regulations are pragmatic rather than ideological. I can hardly imagine simple electric heaters in the form of fixed fan heaters being common in the future either. I actually see a not-so-bad chance for storage heaters, but no longer using off-peak/peak electricity rates; rather, as high-load/low-load. Future energy production will fluctuate much more than it does today and even more so compared to decades ago. Since storage is difficult and expensive, it might be a reasonable approach to partially balance these fluctuations with storage heaters. This doesn’t work well with infrared heating or similar systems because they lack thermal storage capability. On the other hand, considering operating costs, it’s questionable for which buildings such systems make sense. The EH40 standard house can go without heating for a few hours quite well due to its storage capacity. Older buildings lose heat faster and would benefit more from storage, but 20,000 kWh (about 67,000,000 BTU) of electricity is simply too expensive.
OWLer schrieb:
Or, we build a house that is sustainable and can be operated with low running costs by other people’s children. A house where the annual performance factor smooths out energy cost fluctuations by a factor of 4 to 5. Where you also buy security for affordable operation over the next 50 years (of course not with the first heating system). A house with comfortably warm feet and a floor where children can play without needing to cover everything with carpets or rugs. A place that is simply cozy and can even be cooled in summer using the heat pump’s cooling function.
The typical single-family house construction should ultimately be much more comfortable and reliable long-term with a heat pump and underfloor heating.
Of course, this may also depend on individual living conditions. Could you please tell me where to buy your crystal ball? I need a new one because mine doesn’t work properly. 😱
About 50 years ago, my parents wanted to future-proof the two-family parent house (farmhouse) by rebuilding it, and they did. However, the money was only enough for a modern solid construction with large double-glazed insulating windows, shutters, an oil stove heating system, a heater fan in the bathroom, and centralized electric hot water for bathroom and kitchen.
In 2000, my brother took over the house and modernized it again to make it future-proof (partial insulation, brand-new oil heating system, radiators, piping, etc.). With a state-of-the-art oil heating system because air-source heat pumps are not feasible or are too expensive....
In 2022, the house was sold and is to be future-proofed again, including a brand-new, much larger second bathroom, new heating with a heat pump, photovoltaic system, and firewood heating...
Since 2015, my brother has owned an older single-family house built in 1984 with excellent insulation and oil heating, which he has gradually upgraded to be future-proof: 20 cm (8 inches) external thermal insulation composite system (ETICS) + new underfloor heating + air-source heat pump—but (so far) without photovoltaics.
Since I know an incredible number of “future-proof” projects in the area from the last 50 years, I don’t believe it really works.
C
Christian 658 Oct 2022 13:05RotorMotor schrieb:
Here is the answer made even simpler. Yes, you miscalculated.
Interest would be €9,013 (about $9,880), but this can be completely ignored since the increase is also not considered on the electricity costs.
If that is also around 3-4% per year, it balances out. However, your €9,013 ($9,880) is incorrect with 2% repayment and 3.5% mortgage interest. With a fixed payment, it comes to about €12,300 (about $13,470).
And after 20 years, nearly €10,000 (about $10,940) remains on the loan balance.
Similar topics