Articles by Dan Vastyan

Geothermal Think Tank Takes On The Extraordinary Job

For the massive 235,000-sq-ft Merrimack County Nursing Home in New Hampshire, the geothermal source available nearby may not have been the fountain of youth, but it did prove key to the center’s “uber-green” mechanical system retrofit. See how the companies involved brought together 16 wells, over 300 water-to-air heat pumps, and the rest of the 615-ton system to serve this 290-bed facility.
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Gateway City Apartment Builiding Goes Single-Pipe

This large complex is welcoming a host of new arrivals, from new boilers and chillers to an overhaul of its hydronic strategy. Avoiding a whole lot of drilling was one benefit of their new design choice. Balancing first cost, maintenance costs, and the system itself were additional positives for keeping all 225 units comfortable and affordable.
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Mass Retrofit At MassMutual

A solar array contributed to putting this insurance headquarters in hot water — in a good way. See how those systems teamed with chiller plant improvements to maintain occupant and computer room productivity.
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