We are undertaking a home extension project next year (planning permission with FBC atm) and have been considering taking the opportunity to install a Ground Source Heat Sink to supply underfloor heating to the tiled kitchen/bathroom areas whilst our home/garden are already being dug up! Has anyone on here got any experience of these systems as we would be keen to hear your feedback and who you used for the work. Also if there are any local traders who offer the supply/fit of these systems please get in touch. Thanks.