Boards Index › General discussion › Off topic chat › Ground source heating systems. Viewing 2 posts - 11 through 12 (of 12 total) ← 1 2 Author Posts 13 August, 2008 at 2:14 pm #289465 chickenman Every new office block in London has to have that as part of the planning application. Two guys i was talking to say they charge £1000 a hole. Thats a lot cheaper than some of the women on here :lol: 14 August, 2008 at 9:33 am #289466 Pete Author Posts Viewing 2 posts - 11 through 12 (of 12 total) ← 1 2 Get involved in this discussion! Log in or register now to have your say!