What is the efficiency of a solar heating?

Heating, insulation, ventilation, VMC, cooling ... short thermal comfort. Insulation, wood energy, heat pumps but also electricity, gas or oil, VMC ... Help in choosing and implementation, problem solving, optimization, tips and tricks ...
the middle
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by the middle » 15/11/07, 10:08

Christophe wrote:
I do not agree ... for me it is the "ideal" house (in theory because there is no such thing as the ideal house) that would be a fair compromise between passive house and bioclimatic house.

The heating of a passive house is carried out ... by the inhabitants and internal losses. This is why we rarely see compact fluorescent bulbs in passive houses ... and that the electrical cost (VMC in particular) is rarely put forward ...


Is there a post for the electrical consumption of passive houses on econology?
No?
So, you have to make one (see ... for or against passive houses)
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by Christophe » 15/11/07, 10:19

I agree but to my knowledge no member has a passive house.

I remind you of the definition of passive house: an extra-isolated house without any heating system.

However, I know of an example of a passive house not far from home (in the Belgian Ardennes! That is to say !!):
https://www.econologie.com/forums/une-maison ... t3520.html

Otherwise we have a "generalist" post on the subject:
https://www.econologie.com/forums/maison-passive-t1471.html
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by bham » 15/11/07, 10:21

Christophe wrote:
lejustemilieu wrote:you should know that the best heating is the passive house

I do not agree ... for me it is the "ideal" house (in theory because there is no such thing as the ideal house) that would be a fair compromise between passive house and bioclimatic house ....

I totally agree with "lejustemilieu" and I think he and I agree with you on these last criteria.

Christophe wrote: The heating of a passive house is carried out ... by the inhabitants and internal losses. This is why we rarely see compact fluorescent bulbs in passive houses ... and that the electrical cost (VMC in particular) is rarely put forward ...
Is the operating cost of a double flow CMV higher than that of a single CMV?
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by Christophe » 15/11/07, 10:31

Yes I think the cost is slightly higher since there is more pressure drop ... but it should not be huge ...
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by the middle » 15/11/07, 11:32

Christophe wrote:I agree but to my knowledge no member has a passive house.


Very good answer ...
People who do not have heating problems will not walk on your site ...
This does not mean that they have no other problems ...
If I were someone good (I speak for myself), I will move the c ..., to invite the owners of these houses on econology.
In order to get things done ...
I'll think ... if I'm going to move the butt :D
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by Christophe » 15/11/07, 11:52

lejustemilieu wrote:If I were someone good (I speak for myself), I will move the c ..., to invite the owners of these houses on econology.


Should we deduce that you're not kk1 good? :|
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by the middle » 15/11/07, 12:02

Christophe wrote:
lejustemilieu wrote:If I were someone good (I speak for myself), I will move the c ..., to invite the owners of these houses on econology.


Should we deduce that you're not kk1 good? :|

: Cheesy:
Someone of good cares about his family, see in the broad sense, of the "world"
I am still too selfish to say that I am good at this point of view.
I often say, it is not the intentions that count, but THE ACTS.
And I judge myself for my actions, not my intentions.
I still have a long way to go, and that's how it is, no problem
My family ... it's done yes, it's the minimum ... but the planet ... :?
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by Capt_Maloche » 15/11/07, 13:33

OOPPS!

Imagine that I am studying the feasibility of a solar installation for a building of 365m² heated only with a floor conforming to the RT2005 standard, ie loss of <50W / m²

I'm quite surprised with the results
At least 20m² of collectors would be needed for 100m² of living space, and this would only obtain 46% solar coverage.

Image

Read Solar Hot Water
Image

Image

At the price of a solar installation, approx. 600 € / m² excluding transmitters is hardly profitable.
Suffice to say that solar heating by sensor is to be forgotten as the price of energy has not at least doubled !!

Better to use direct radiation through glazing

At the current gas price, the cost of the gas energy bill on this building would be around 2250 € / year and the investment in panels and hydraulic kit of around 42 000 € !!

with aid at 50% on investment, the amortization is still more than 10 years

Of course we only talk about cash :frown:
ecological side, it's pretty good
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by the middle » 15/11/07, 14:04

Better to use direct radiation through glazing


It is the simplest of solar collectors
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by Capt_Maloche » 15/11/07, 15:12

Yes, and I feel that I will open 2 bay on my wall SO 8)
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