Forums DIY Ground Source Heat Pumps Reply To: Ground Source Heat Pumps October 25, 2018 at 2:47 pm #451 Phil 9 Posts I live in a similar house. I think it is worth considering whether attempting to heat large, stone Victorian houses is sensible at all . Personally I think aiming to heat the whole place is either unrealistic cost-wise, or requires destroying the period interior (which I like) and possibly exterior for GSHP. It is however fairly easy to stay comfortable by more jumpers, blankets on sofas, thick duvets etc. together with heating in key rooms and closing doors. My heat+light bill is <£60/month and it is not miserable.