No, oops, I put it in the order of my pc, I thought at the time I could put them back in the original post, and then I zapped. Original post / 2nd post No trace (7th of the 2nd post) Very fine trace (2nd) Fine trace (4th) Clear trace (3rd) Thick trace (5th) Calculator (1st) Li...

Excuse my intrusion... My all these monstrously insane installations... Doesn't that concern you for a single moment??? While there are so many surfaces already built by man and roofs (sometimes abandoned) correctly oriented (more or less south). One more d...

Hello,

i would like to have feedback from users using a CESI with viessmann brand equipment.
the idea behind is to know if everything is well "programmed" in order to optimize/protect the installation.

merci,

No wonderful results but it increases the collection. The radia itself, exploits any mid-season surplus at lower temperatures... As my sensors are quite inclined, there can sometimes be enough (or even too much) for DHW from mid February to mid April. This radiator contributes to the heating...

Hi, I installed a blackout-reflector (non-motorized) a little over 2 years ago (soon to be 3...): http://www.apper-solaire.org/Pages/Experiences/Durassier %20Armel%2044/Adding%20d%20un%20radiateur%20sur%20CESI%20et%20d%20un%20reflecteur%20occultant/ and at the time I was already very...

I think that partly hiding the panels is quite easy to do, indeed with a motorized "shutter" a bit like the shutters of the skylights. Yes, if you only want this function. To improve performance in winter, maybe fresnel lenses can bring a little more...

Ahmed wrote:Fresnel lenses only concentrate on a smaller area, which would imply dimensions much greater than those of the receiver panels, which seems to me quite difficult in practice ...

even with one lens per cell?

I think that partially hiding the panels is quite easy to do, indeed with a motorized "shutter" a bit like the skylight shutters.
To improve performance in the winter, perhaps fresnel lenses can bring a little more.

Common use is to heat a swimming pool... when one has one. Otherwise, there is also this: https://www.youtube.com/watch?v=qASY2VmtJYs More power in winter and overheating protection in summer :D Attractive indeed :) But then exit the regions with almost wind permanent ! But ...

Attention, I saw the price .... sit down ... at least 1000 € .... : shock: Just a stainless steel heat exchanger (supporting the chlorine of the swimming pool) costs this price there :? yeah.. i found a naked one here: https://www.piscineale.com/998-echangeur-heat-line-20-zodiac-nu.html?gclid=EAIaIQobChMI2rj2j7XC...