Energy saving: aluminum foil and radiators

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Christophe
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Energy saving: aluminum foil and radiators




by Christophe » 18/09/06, 14:24

I read in the Electrabel magazine on energy savings the testimony of a person who had put aluminum foil behind his radiators so as not to "heat the wall".

Aluminum is one of the best materials to "reflect" heat, on the other hand is aluminum foil sufficient to have an impact on consumption?

Is someone already testing the thing? Personally I will put behind all our radiators but the efficiency in terms of consumption will be difficult to measure before long since we moved there is 6 month ... but we can compare with the results of Kyot-Home ...
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by bham » 18/09/06, 15:34

Yes Christophe, this system has been around for a very long time since you could buy thin polystyrene sheets covered with aluminum, to put behind the radiators (I think it still exists). The principle is the same as that of a thin multi-layer insulator, namely the reflection of infrared waves, on the one hand and this in fact prevents the diffusion of heat into the wall behind the radiator on the other hand. . In order not to have rooms with cold walls, the walls must be heated, so they constitute a "mass" of heat that can be returned for a few hours. But if the wall is overheated, the risk is that the heat by diffusing crosses the wall and goes to heat the small birds. This reasoning is obviously valid only in the absence of wall insulation. If the walls are insulated, the effectiveness of the aluminum foil is more questionable, but let's say that we have a radiating effect and no longer just convection.
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by delnoram » 18/09/06, 16:17

bham wrote:Yes Christophe, this system has been around for a very long time since you could buy thin polystyrene sheets covered with aluminum, to put behind the radiators (I think it still exists). The principle is the same as that of a thin multi-layer insulator, namely the reflection of infrared waves, on the one hand and this in fact prevents the diffusion of heat into the wall behind the radiator on the other hand. . In order not to have rooms with cold walls, the walls must be heated, so they constitute a "mass" of heat that can be returned for a few hours. But if the wall is overheated, the risk is that the heat by diffusing crosses the wall and goes to heat the small birds. This reasoning is obviously valid only in the absence of wall insulation. If the walls are insulated, the effectiveness of the aluminum foil is more questionable, but let's say that we have a radiating effect and no longer just convection.


+1 8) and derive the gas stove too.
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by elephant » 18/09/06, 17:54

the gain in absolute isolation is negligible, but the gain in the feeling of comfort is important.
For a tenant it is, with the installation of sealing beads insulation investment par excellence.

in fact, it is in rolls, aluminum foil + 3 mm foam

Similarly the laying of insulation (rock wool, glass wool) with aluminum film (inner side) is required.
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by Philippe Schutt » 18/09/06, 21:32

+1
and the same product exists to put under floating floors. Obviously you have to put the aluminum side of the hot side.
if your wall is heated to 40 ° or 50 ° instead of the usual 20-25 °, and outside it is 0 °, you will emit double the heat out on the surface behind the radiator.
The area involved is not huge, and therefore the overall effect either, but the investment is super-profitable.
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by elephant » 18/09/06, 21:46

To convince yourself of the usefulness of the aluminum film, here is a little experiment:

open a cup of wine ("vinibag de 3 liters) (drink the spinach first!) in aluminized plastic, on one small side.

put his hand in 5 minutes

do the same experiment with a transparent plastic bag

can compare

in fact, that's how we make "survival blankets"

nothing prevents you from carving a cardigan in this material to save on heating this winter. For assembly, the "supertape" should be fine.
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by Christophe » 18/09/06, 21:54

elephant wrote:nothing prevents you from carving a vest in this material to save on heating this winter.


Uh, what's the warmest thing? The pinard or the aluminum? : Cheesy: : Cheesy: : Cheesy:
Can you drink cubi you? Chapo! The last one I opened in my life smelled of vinegar ...
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by elephant » 18/09/06, 22:34

You are not

not a good fool,
neither broke! : Cheesy: : Cheesy: : Cheesy:
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by Philippe Schutt » 18/09/06, 22:53

you add 1 / 2 bottle of port, a giclette of kirsch and some effervescent aspirins.
you pass all through your pantone
and you will see that it is perfectly drinkable! : Mrgreen:
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by denis » 18/09/06, 23:52

elephant wrote:To convince yourself of the usefulness of the aluminum film, here is a little experiment:

open a cup of wine ("vinibag de 3 liters) (drink the spinach first!) in aluminized plastic, on one small side.

put his hand in 5 minutes

do the same experiment with a transparent plastic bag

can compare

in fact, that's how we make "survival blankets"

nothing prevents you from carving a cardigan in this material to save on heating this winter. For assembly, the "supertape" should be fine.


you have transparent walls ????? étonant! ouet the pinard makes the effect :D
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