Glass radiator, heated glass

[tuttikullikum]

Hi,

What to think of such a system? Cost, interest, .....

With photovoltaic panels, could it be
ecological?

I found these sites on the net

http://www.glastherm.de/franz/glastherm.html
http://www.iqglass.com/

[elephant]

Unless I'm mistaken, I didn't find the powers of devices

[tuttikullikum]

Hello,

electrical power 100 to 300 W / m² in heating mode
see here

http://www.belgique.sggs.com/Belgique/i ... 0EGLAS.pdf

[minguinhirigue]

On a well-insulated house, it is bad to put the heating source near the walls: you lose heat faster and you gain almost nothing in radiant heat (well insulated = no "cold" walls).

This principle also applies to windows. So unless you have a double skin (a second exterior glazing or an insulating shutter for the night) this system is typical of marketôvert gadget: let’s throw energy out the window all at heart!

It can benefit from this development but for very specific uses.

[tuttikullikum]

The house is not super insulated

20cm ytong + vacuum 3cm + bricks 10 cm

[tuttikullikum]

Re,

I just went to visit a house with these heated windows.
Sensation of incredible heat, we believe in the sun.

The cost would be almost identical to a conventional installation + radiator.
Consumption in € would be 20 to 25% less for him.

I hesitate anyway but according to you it's marketovert (did not know the term pretty).

A negative point, we do not find much feedback or info on the subject.

[Capt_Maloche]

Hello,

The only interest is the reduction of the cold walls that are the glazing in general in winter, even the double glazing is at 12 ° C by -5 ° C ext.

for sure, the comfort is extra, I suppose that the powers are of the order of 30 to 50W / m² to avoid burns, but what lifespan for the electrical connection in the openings?

By cons no savings, see more expenses, because the glass on the outside is therefore hot too with heat losses much higher than normal glazing

[tuttikullikum]

Hello,

It is said concerning the exterior side that by using a glass with low emissivity (low-e) on the exterior side the heat is redirected towards the interior. The heat loss to the outside is then of the same order as that produced by an ordinary sealed unit. Tests have also shown that when the glass is kept at a temperature of 24 ° C and the ambient room temperature is 20 ° C (68 ° F), the heating glass provides a heat gain of 50 watts per meter square.

This is apparently in the case of comfort use because as heating it would require a temperature of 35 °.

I imagine that there is a way to slow down the rejection to the outside
with an effective low-e.

It would be interesting to have testimonies from people
econological who could test this system.

[minguinhirigue]

The losses may not be worse than conventional double glazing, but they forget to compare thermal losses to low-e glazing (low-e), which also exists without heated interior windows.

I actually think that this system can be very comfortable, with a really cool feeling of cold management.

But in terms of energy management, I repeat, unless you put in an additional external insulating system (double skin, insulating flap, ...), it's not glorious.

PS: sorry, for my French inventions, the word is marketovert is I believe a recent creation

[tuttikullikum]

If I understand what is said, do not place the hot springs near the cold.

What do you think of the following config:
frame with argon or krypton double glazing and glass radiators
(hanging on the wall or on a stand) far from the bays?

I think (: idea :) that it compares to classic double glazing because the investment
gas or oil heating + radiators is the same price as heated windows.