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?
V
Vestaxx GmbH5 Oct 2022 11:42WilderSueden schrieb:
For me, wall surface area isn’t an issue; the panels are small and some even come with decorative designs, so you don’t really notice there’s a heater. I can’t comment on heat output, but there are certainly models with adjustable settings, and if you mount them a bit higher, children can’t reach them. Adults can use common sense anyway.
Wall surface area may not be an issue for YOU – okay, but maybe for others!
You say you can’t comment on temperatures and controllability – but I can!
… and again, my focus here is on comparing hydronic systems versus direct electric heating, mainly in new construction.
Does the window manufacturer Maier from Hintertupfingen know this system and work with it? Do they have heated glass in stock or even know where to order it from?
We currently handle this with our own team, and keeping stock doesn’t make sense because there are no standard sizes – OMG 🙄
And what price does the window manufacturer charge for the replacement? Sustainability is nice and all, but swapping glass doesn’t necessarily sound cheaper than purchasing entirely new windows. And who knows if in 30 years we won’t be at triple- or quadruple-glazing then, making replacements even less straightforward.
Certainly less expensive than if a heating technician has to replace a pump or compressor 🙄
Of course, it’s much cheaper to replace a pane than to buy and install brand-new windows – OMG 🙄
Given how many are being installed now, it certainly won’t be a problem. And thanks to the hydronic system, the energy source is completely irrelevant. Whether it’s oil, gas, wood, heat pumps, hydrogen, district heating, or a boiler… all can be swapped without touching the rest of the heating system. I’m just saying 500,000 heat pumps per year 😱 😱 😱 – who is going to build all of them (lead time: currently months or even years) and WHO is going to install them??? Aren’t you hearing the news???
V
Vestaxx GmbH5 Oct 2022 11:44The remaining answers are in your text – unfortunately, I still haven’t figured out how to reply to specific parts of the text. 🙁 But I’ll figure it out eventually. 😉
KingJulien5 Oct 2022 12:10Now you’re just being grumpy.
Could be because of this:
You don’t want a discussion, you want to preach. And when people don’t hang on your every word, you get upset.
Maybe you should reconsider your self-image. Not everyone is an idiot except you.
I’m out now, this is getting too exhausting for me. Luckily, I’m already happily paired with my air-to-water heat pump 😉
Could be because of this:
Vestaxx GmbH schrieb:
I feel like a teacher and actually don’t have time for this.
You don’t want a discussion, you want to preach. And when people don’t hang on your every word, you get upset.
Maybe you should reconsider your self-image. Not everyone is an idiot except you.
I’m out now, this is getting too exhausting for me. Luckily, I’m already happily paired with my air-to-water heat pump 😉
V
Vestaxx GmbH5 Oct 2022 12:30I want to have a reasonable discussion here, not preach – if it came across that way, I apologize.
In some responses, I feel misunderstood and first look for the mistake in myself. Then I explain things differently, and eventually I am seen as a preacher. I have the impression that the real preachers are somewhere else (heating system manufacturers), and they are successful at it. What they say is believed, while others who have different views – like me – are silenced. "It can’t be – what must not be!"
In recent conversations with professors and energy consultants at their conferences, I encountered open minds regarding our system, and these experts confirmed to me that hydronic (water-based) systems are not economical. I am being invited to webinars to further share this topic. Maybe I should save time here and focus more on that.
I was looking forward to engaging with professionals here who are willing to consider my arguments and respond with reasonable objections, not excuses. I don’t see that happening every time here, and I am considering leaving this forum. But I don’t really want to, because then I would leave the field to those who don’t know our technology and spread half-truths. If anyone feels addressed, I ask you to reflect on whether I mean you. There really are people here who take my approach seriously and think about it. I would be happy to continue being a sparring partner for them.
In some responses, I feel misunderstood and first look for the mistake in myself. Then I explain things differently, and eventually I am seen as a preacher. I have the impression that the real preachers are somewhere else (heating system manufacturers), and they are successful at it. What they say is believed, while others who have different views – like me – are silenced. "It can’t be – what must not be!"
In recent conversations with professors and energy consultants at their conferences, I encountered open minds regarding our system, and these experts confirmed to me that hydronic (water-based) systems are not economical. I am being invited to webinars to further share this topic. Maybe I should save time here and focus more on that.
I was looking forward to engaging with professionals here who are willing to consider my arguments and respond with reasonable objections, not excuses. I don’t see that happening every time here, and I am considering leaving this forum. But I don’t really want to, because then I would leave the field to those who don’t know our technology and spread half-truths. If anyone feels addressed, I ask you to reflect on whether I mean you. There really are people here who take my approach seriously and think about it. I would be happy to continue being a sparring partner for them.
WilderSueden schrieb:
Sustainability is all well and good, but changing glass panes doesn’t necessarily sound cheaper than buying completely new windows. The order value is so much lower that it worries the supplier more, whereas the avoided mess only benefits the client and not the supplier.
Vestaxx GmbH schrieb:
I was looking forward to an interesting exchange with professionals here, But not on such a specific topic — it’s more likely to result in thousands of off-topic posts than in reaching a conclusion.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
C
Christian 655 Oct 2022 13:53then I’ll have a go.
The functionality and energy consumption have been sufficiently explained.
Considering all costs, meaning both consumption and initial investment, actually makes sense to some extent.
However, I would like to add the following:
If you visit a Porsche forum, a common topic is the actual fuel consumption of the new models.
So, someone buys a completely overpriced car and then discusses the actual fuel consumption.
What does this tell me? That the primary costs as a one-time investment are planned for and paid within the budget.
This part is quickly dealt with; otherwise, you simply don’t go for it.
The ongoing consumption costs, however, are open for discussion.
You might think, just buy a cheaper car, and then the fuel price for the next 10 years won’t really matter.
But that’s not how people think.
And here comes the first point of criticism.
Alright, where would I see an approach?
In my humble opinion, even more positive aspects should be created to achieve wider acceptance.
For example, one idea could be to integrate an intelligent outer pane that, when voltage is applied, can adjust its light transmittance up to opacity (possibly even full blackout).
Since the electrical installation for the window heating has to be routed to the frame anyway, this would create a synergy effect.
And if I could then also do without electric blinds, with all their drawbacks, this would be a new line of thought.
That would mean: no more blind boxes, which are nowadays almost as expensive as the windows themselves.
Mounting options for wide elements in the ceiling or lintel.
One less thermal bridge, along with all the special measures that would be eliminated in monolithic construction.
No space problems with continuous ring beams running above.
Window position freely selectable in the masonry cross-section, and a few more reasons to dispense with blind boxes.
Marketing the whole thing as a comprehensive new option might just turn out well.
Regards Christian
The functionality and energy consumption have been sufficiently explained.
Considering all costs, meaning both consumption and initial investment, actually makes sense to some extent.
However, I would like to add the following:
If you visit a Porsche forum, a common topic is the actual fuel consumption of the new models.
So, someone buys a completely overpriced car and then discusses the actual fuel consumption.
What does this tell me? That the primary costs as a one-time investment are planned for and paid within the budget.
This part is quickly dealt with; otherwise, you simply don’t go for it.
The ongoing consumption costs, however, are open for discussion.
You might think, just buy a cheaper car, and then the fuel price for the next 10 years won’t really matter.
But that’s not how people think.
And here comes the first point of criticism.
Alright, where would I see an approach?
In my humble opinion, even more positive aspects should be created to achieve wider acceptance.
For example, one idea could be to integrate an intelligent outer pane that, when voltage is applied, can adjust its light transmittance up to opacity (possibly even full blackout).
Since the electrical installation for the window heating has to be routed to the frame anyway, this would create a synergy effect.
And if I could then also do without electric blinds, with all their drawbacks, this would be a new line of thought.
That would mean: no more blind boxes, which are nowadays almost as expensive as the windows themselves.
Mounting options for wide elements in the ceiling or lintel.
One less thermal bridge, along with all the special measures that would be eliminated in monolithic construction.
No space problems with continuous ring beams running above.
Window position freely selectable in the masonry cross-section, and a few more reasons to dispense with blind boxes.
Marketing the whole thing as a comprehensive new option might just turn out well.
Regards Christian
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