Forums DIY Ground Source Heat Pumps Reply To: Ground Source Heat Pumps October 25, 2018 at 2:42 pm #441 burton 25 Posts We didn’t want to touch our walls inside to preserve damp proofing, and outside is limited by conservation area. So we threw stud partition walls up inside the real walls and insulated those. Added bonus is doing a rewrite is much simpler running stuff in the fake walls. This is a good idea, and the route we’ve gone down in both our old house and the annex in the new one. Could be an option in the main part of the house, biggest problem would be that the window reveals are already deep and this would make them even deeper. Nearly all the external walls have windows in them. If you think that’s viable, take a proposal to your local listed buildings officer. Invest some effort in getting them on side. Our local listed building team seem very reasonable. I’ve already got a conversation going with them, can’t complain about any of their decisions up until now. GSHP – it’s a hell of a big dig for a shallow system. Think it would mean digging up pretty much the whole garden. While it’s not appealing, the kids love diggers and we could put turf back down to get it usable again quickly. In winter we heat a lot of our house with a 10 kw log burner and convection currents of air – but I have 60 mature leylandii trees to dispose of… Someone – LG I think – do a high temperature air source heat pump that works with normal sized radiators. My 5 year plan is to fit a high temperature ASHP, thermal store and external log burning boiler to our garage and get rid of the oil boiler. This is the kind of imaginative solution I would like for our house. Adding oil fired central heating is the obvious solution, but seems a bit retrograde