Replace thermostat and run ductwork for indoor ac. Installed ductwork for ac. Vented out the side of the house. There is currently a prestige thermostat and cannot be replaced with a t6 WiFi. A redlink gateway needs to be installed. I removed the #8000 thermostat & modem & installed a T6, 3heat/2cool Wi-fi thermostat, re-wired and added a lyric leak/temperature detector and linked both to Keith's wi-fi and his phone. Checked operation of the geo system and answered Keith's questions. All good at this time. Keith would like a soft start kit for his geo unit due to light dimming issues. I quoted him $839.00. Keith requested that this be installed ASAP.