Nordic Geothermal Heat Pumps and Installers

Matching Nordic water-to-air or water-to-water equipment

Nordic Heat Pumps, on the manufacturer-owned Maritime Geothermal site, groups geothermal equipment into water-to-air, liquid-to-air-and-water, water-to-water, and high-temperature categories. The residential R Series serves centralized ductwork and is described for open-well or closed-loop sources, while the W Series is intended for water-based uses such as radiant floors, chilled water, pools, and domestic-hot-water applications. Those categories have different design temperatures, pumping, controls, distribution equipment, and condensation risks; the proposal should state exactly which current series and application are involved.

For an open-well source, document available flow, water quality, discharge method, permits, filtration or heat-exchanger implications, and seasonal conditions. For a closed ground loop, document field sizing, antifreeze, flow, pressure drop, flushing, and testing. Forced-air designs need room loads and duct airflow; hydronic designs need supply and return temperatures, emitters, tanks, pumps, zoning, freeze protection, and cooling condensation control. Nordic’s warranty page distinguishes equipment categories and refers to startup documentation, so collect the exact current warranty, startup record, registration evidence, and local service plan instead of relying on a general summary.

Make Nordic proposals comparable by recording source development, indoor piping, pumps, tanks, ducts or hydronic terminals, controls, electrical work, auxiliary heat, hot-water or pool boundaries, permits, insulation or condensation work, startup, balancing, training, restoration, and disposal. Ask how the exact series performs at required air or water temperatures through mild and peak conditions. The bid should also state who addresses well-water changes, loop flow problems, controls faults, or refrigeration service after turnover.