Does size matter when it comes to solar geyser panels?

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Quintrix

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Considering going solar on the geyser. Did some "research" and spoke to some installers.

Lots of "discrepancies". One site/installer confused the crap out of me with a BS promotion. They ran a special for R13K on a 200l geyser solar conversion with ONE panel while their normal price is R19k for a 200l geyser conversion with TWO panels.

Apparently the number of tubes in the panels is proportional to the geyser size - one tube for every ten liters. Thus a 200l geyser with a 10tube panel may not reach sufficiently high temps??

Any comment on this and your experience would be appreciated.
 
Size does matter. The larger the collection area, the more energy gets collected.
There are many variables to the equation - orientation, angle, hot water usage patterns, collector types etc.
 
Quintrix said:
Considering going solar on the geyser. Did some "research" and spoke to some installers.

Lots of "discrepancies". One site/installer confused the crap out of me with a BS promotion. They ran a special for R13K on a 200l geyser solar conversion with ONE panel while their normal price is R19k for a 200l geyser conversion with TWO panels.

Apparently the number of tubes in the panels is proportional to the geyser size - one tube for every ten liters. Thus a 200l geyser with a 10tube panel may not reach sufficiently high temps??

Any comment on this and your experience would be appreciated.
Click to expand...

More panels or tubes will heat more water faster, though less won't necessarily mean it won't be sufficient.
 
Anybody with a small panel on a larger geyser?
What is the preferred manufacturer for panels?
 
Yep, 10 tubes = 100/150L. Need 20 tubes for 200L. I have 20 tubes and it is sufficient, but in winter the element switches on a bit to heat up to 55/60C.
 
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