We have two 500' bore holes being grouted now for a closed loop system. We have a new construction house with NOTHING done inside yet.. We plan on sprayfoam insulation. 1-2" closed on roofline with open on top of it to rafters. Open cell everywhere else. The house has zip system sheathing and it is ALSO wrapped (don't ask) So we expect the blower test to be excellent. The house is ~3700 sq/ft but we are spraying rafters so attic will have to be somewhat heated/cooled. We are being quoted $64K ! for a single system with duct work and desuperheater We also have a quote for $57k for a waterfurnace Series 7 5 ton 4-zones comes with a MERV Air Filtration 2 55 gallon electric water heaters (there is radiant tubes in basement) and a dehumidifier.. Thoughts on pricing? or best way to deal with domestic hot water and support the radiant floor in basement. Also I am not 100% convinced that water furnace has a reliable product. It has the variable speed motors I wanted but I see some horror storied about having to constantly reboot it to get it to work and repair nightmares. Comments?