What's the difference between a proper Solar water heating panels?

Question:

and household radiators painted black and housed in a cloche. Being a tight git I built my Solar water heating system for £180. It's three 1.2m x .6m panels, a pump and a controller. It gives me tons of hot water on a sunny day and does a bit even when it's not sunny. So whats the difference? Why do people spend £7000 on solar water heating systems?

first,

good job, it really isnt that difficult, but most people would rather pay than do the work...

second, from your picture, the water appears to be affecting you..this may not be a good selling point.

good work!

A Solar water heater in ENGLAND?
http://www.youtube.com/watch?v=xxvwobiyr...

"Cloche" as in belfry? (In your case inhabited by bats.) Solar panels do more that just heat water, they also supply electric current. I use my solar shower all the time while backpacking. Just fill the plastic bag with water (the back of it is coated to absorb the sun's rays), lay it on a rock out in the sun, and 4 hours later hang it on a tree limb, attach the shower hose and head (god that sounds obscene somehow), and you got a 5 minute hot shower. Nothing wrong with being frugal, but a tight git is something else.

What's the difference between a proper Solar water heating panels?

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