Grafton County Biomass

A high capacity (7MMBTU/HR) automated woodchip fired central heating plant for Grafton County Complex; in addition to a working farm, the complex includes a Courthouse, Prison, Nursing Home and Administration building, totaling over 280,000sf. Biomass heat is distributed by hot water in over 1800’ of pre-insulated subsurface steel pipe and is capable of meeting 90% of these buildings’ heat load using woodchips sourced nearby within this largely rural county. The heating plant building is sited for safe and convenient delivery truck access, includes storage for over two truckloads of woodchip fuel and its form and cladding designed to blend with both the institutional and farm buildings.

Location: North Haverhill, NH
Project Cost: $3,500,000
Gross Square Feet: 3,050sf
Start/Completion Date: 2013
Construction Manager/General Contractor:
The MacMillin Company
Major Consultants:
Civil & Structural – DeWolfe Associates
Mechanical – GWR Engineering
Electrical- SwiftCurrent Engineering

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