77 C is max according to this
what was i saying about great minds! lol you beat me to posting it! lol
I'm peddling as fast as I can to keep up
lol keep going! all up hill from now on! lol
I was hoping we had just about reached the top and it would be all downhill from now on

Shucks!
I found this video of SunShines very interesting.
http://www.youtube.com/watch?v=ehSofVX3gqEI like the idea of heating a small tank (125l) and topping it up as required. Yes it isn't as efficient as we would like (compared to 'on demand heating' ) but overall I like the concept of heating a smaller tank. He would be passing hot water through his shurflo pump. As he tries to maintain his tank temperature at 25C his pump may have to pump a higher temperature than that at times, but probably not that much higher as he is drawing colder water from the tank, pumping it through his heater and back out to the tank.
I think Gold does the same thing, although he has 2 seperate 250l tanks, heats one with an immersion heater and has cold in the other. I have thought about this for a bit with my setup, although I would probably have to get rid of the 650 litre tank for something smaller. I already have a 125 litre tank 'lying around' doing nothing.
I also have a Webasto diesel heater awaiting fitment. The other thought would be to use the smaller 125 litre tank as a large storage tank, but to pump the hot water from the boiler to a heat exchanger for the brush and then onto the tank which would slowly warm that up.
The heat exchanger is fitted with a thermostatic valve which can be set at 36 - 42c so the water to the brush won't be very hot. To me that's fine, I want more supple hoses in the winter. This should help with my Tourette's syndrome which I suffer from mainly in the winter.
