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?
R
RotorMotor8 Oct 2022 13:17@profil65 It’s quite simple: with the 20cm (8 inches) external thermal insulation composite system (ETICS), triple glazing, and so on, plus a heat pump and underfloor heating, the heating electricity consumption is already significantly lower than that of other household appliances. So, it’s clear there’s not much more to gain here. Of course, in twenty years you could install a more modern air-to-water heat pump, which might achieve an annual performance factor of 6, 7, or maybe even higher.
@Christian 65 Are you trying to spam the thread so that all the cost-effectiveness calculations get lost in the middle and are harder to find? Otherwise, why would anyone just pick 2% repayment? The parameters were 20 years and 3.5%. That’s what determines the repayment. Miraus also assumes €1500 or more in electricity savings, but I’d prefer if you admitted that interest can simply be ignored because otherwise we would also have to increase electricity costs, which would be a worse deal for the electric heating through windows.
@Christian 65 Are you trying to spam the thread so that all the cost-effectiveness calculations get lost in the middle and are harder to find? Otherwise, why would anyone just pick 2% repayment? The parameters were 20 years and 3.5%. That’s what determines the repayment. Miraus also assumes €1500 or more in electricity savings, but I’d prefer if you admitted that interest can simply be ignored because otherwise we would also have to increase electricity costs, which would be a worse deal for the electric heating through windows.
C
Christian 658 Oct 2022 13:32Don't talk nonsense like that.
What does reality look like?
A family takes out a mortgage loan with 3.5% interest and 2% repayment.
Now, an additional €23,000 is added.
At the same terms everyone hopes for.
And as a result, the payment increases by €1,265 per year.
This is the reality for most people.
What does reality look like?
A family takes out a mortgage loan with 3.5% interest and 2% repayment.
Now, an additional €23,000 is added.
At the same terms everyone hopes for.
And as a result, the payment increases by €1,265 per year.
This is the reality for most people.
C
Christian 658 Oct 2022 13:33And please, stop suggesting window heaters. I want underfloor heating.
Christian 65 schrieb:
And please stop with the window heating.
I want a warm floor. But this is about the window heating and not about you being afraid of "cold feet."
C
Christian 658 Oct 2022 14:15Actually, you’re right.
Basically, I’m talking about the fact that there are different ways to heat a house and spend money on it.
And depending on the situation, every decision can be understood.
If money is not a major concern, I would go for photovoltaic panels and a heat pump.
But the reality is different.
Among the approximately 400 homebuyers I have advised over the last 25 years, the main question for many was:
Can I afford this?
Not, how can I save energy in the best way.
That question came afterward.
And I understand people who have a limited budget but still want to buy a property.
For them, saving around 20,000 (20k) can be a significant factor, leading them to choose a less efficient but initially cheaper solution.
And for these people, among other heating methods, a radiant panel heater installed on windows—despite its weaknesses, which have been thoroughly discussed here—could be an option.
I wouldn’t do it myself, but I don’t consider anyone foolish or uninformed who decides to go that route.
Basically, I’m talking about the fact that there are different ways to heat a house and spend money on it.
And depending on the situation, every decision can be understood.
If money is not a major concern, I would go for photovoltaic panels and a heat pump.
But the reality is different.
Among the approximately 400 homebuyers I have advised over the last 25 years, the main question for many was:
Can I afford this?
Not, how can I save energy in the best way.
That question came afterward.
And I understand people who have a limited budget but still want to buy a property.
For them, saving around 20,000 (20k) can be a significant factor, leading them to choose a less efficient but initially cheaper solution.
And for these people, among other heating methods, a radiant panel heater installed on windows—despite its weaknesses, which have been thoroughly discussed here—could be an option.
I wouldn’t do it myself, but I don’t consider anyone foolish or uninformed who decides to go that route.
RotorMotor schrieb:
@profil65 It’s quite simple: with 20cm (8 inches) of external thermal insulation composite system (ETICS), triple glazing, a heat pump, and underfloor heating, the electricity consumption for heating is already significantly lower than that of other appliances in the house. Therefore, there isn’t much more to gain. Of course, in twenty years, one could install a more modern air-to-water heat pump that might achieve a seasonal performance factor of 6, 7, or perhaps even higher. A crystal ball might say that in 20 years, there could also be much better and cheaper photovoltaic systems that deliver considerably more electricity under unfavorable conditions. And there might be affordable, efficient energy storage systems worth installing, because electricity tariffs could vary greatly depending on available supply.
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