Bring the floor and heating plans together
Confirm the floor buildup, finish materials, circuit information and room requirements before equipment is selected. Clarify who designs the collector, heat pump, hydronic distribution and controls, and how their work is coordinated. At handover, retain the circuit layout and operating instructions so later floor work or control changes are informed by the actual installation.
Coordinate the site, drilling and building requirements
Washington Ecology provides a notice process for ground-source heat pump borings. Have the project team confirm the current drilling requirements and the local site, mechanical and electrical approvals that apply. A loop design and an equipment selection do not replace those checks.
See the broader geothermal heating installation options at Everett Geothermal Heating.