By all means play around with that kind of DIY fun!
The amusement of that last web site is that the panel efficiency is deliberately made lower just to prevent lower stagnation temperatures.
Us qualified solar installers have to fit systems which will be safe and give a long life without failures.
A DIYer can do what he likes but if we were to fit yor plastic rubbish we would be likely to have expensive law suits.
A firm in the UK was heavily fined and put out of business after claiming that customers could save on their hot water and heating costs if they bought their solar systems.
Tony
Brilliant so your now an expert because you spent 3 days in a classroom and got your "certificate". The BPEC course has more FLAWS than a high rise block
How many installations do you have under your belt, what you doing 1-2 a week?.
If somebody posted on here he was an "expert" after 3 days for any other trade he'd be laughed out of here.
Paul's collectors are Solfex SFX's they have test results which show they are comparable to the Navitron collectors but a lot cheaper about half the price.
OP, don't even think about vacuum tubes where you are, they suffer from snow build up that flatplates don't so unless you're able to clear them go the flatplate route.
The companies mentioned in this post sold solar thermal installations that "worked" they mis-sold the benefits in that a domestic water heating system would "assist" the heating
The same lie is being told by others. Solar can be used for heating but it requires large storage cylinders and lots of collector area and huge sums of money.
Cylinders should not regularly see temperatures above 90c. If they are foam lagged the insulation blows from the cylinder walls with these repeated high temperatures most warranties would be void.
Any system should be designed to cope with stagnation but all systems should have systems in place to limit it either loss of power or fault conditions only.
Any system operating outside of the design differentials is in fault condition.
Got to go and Fit some kit.
