Hi Optimistic
I really just stumbled across surface power on the net, and have talked to them on a few occasions, there the only company that i found that offering a underfloor heating solution with solar panels that was not redicilous in price or size, they were selling direct up until lately so it meant you would have to get a local plumber to install or if you were good Diy'er you could do it yourself, but i think they have a list of plumbers that they have used and recommend now. If you look at there web site it will give a lot of details there, I want something to Cut my heating costs and get H/W without using oil/imersion during the summer and without having to install 2 systems like Wood pellet boiler and solar panels. I think this maybe it i know you will still have a small qty of oil to burn, but i think with the wind immersion it would be minimal
I'd like your opinion if you think it would be a sucess going down this route