5 Ton Maritime Nordic Water to Water System providing hot water for in-floor hydronic heating, pre-heat for hot water tank and cold water for AC via fancoil on Hi-Velocity air handlers. Ground loop is 4 200 ft vertical wells in backyard using 1'' dia. line. House is 2 story, apprx. 2450 sq. ft. with ICF walls, hot attic design, and concrete floors on all levels.