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Posted: Wed Apr 26, 2023 7:25pm
Very helpful member
Neilbefc wrote on Tue Apr 25, 2023 9:12am:
Sorry for going on about this but how do they work, do they fill themselves up like a toilet or do you have to do something with a valve.
Thanks
How Solar Water Heaters Work - Bing video
Hopefully this link will work and help.
Posted: Wed Apr 26, 2023 7:48pm
swcoulthurst wrote on Wed Apr 26, 2023 7:25pm:
How Solar Water Heaters Work - Bing video
Hopefully this link will work and help.
Thanks that helps a lot.
I am not sure then one I have is working but I will find out
Thank
Posted: Thu Apr 27, 2023 10:45am
Helpful member
Neilbefc wrote on Tue Apr 25, 2023 9:12am:
Sorry for going on about this but how do they work, do they fill themselves up like a toilet or do you have to do something with a valve.
Thanks
the primary drum is a sealed system,but it can evaporate or leak, you fill it at the highest point with water and add glycol, it circulates through the panel to get hot, the secondary is a coil inside the drum to extract heat into pipes to your system of boiler or such,
Posted: Thu Apr 27, 2023 1:35pm
Very helpful member
Georgetheseventh wrote on Thu Apr 27, 2023 10:45am:
the primary drum is a sealed system,but it can evaporate or leak, you fill it at the highest point with water and add glycol, it circulates through the panel to get hot, the secondary is a coil inside the drum to extract heat into pipes to your system of boiler or such,
From my knowledge of solar energy its the other way round. The drum contains the potable water like any unvented cylinder, with an immersion heater for backup. The panel or evacuated tubes contain the water with glycol (antifreeze). The water in the tubes is circulated like a direct cylinder in the UK to heat the water in the thermal store. However that would be a pumped system not gravity.
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