C. L. Hibbard Plumbing and Heating came to the School's rescue several years ago when our mega-boiler ceased working on very cold days because the pressure in Washington Gas's Second Street pipe was not high enough to meet the boiler's safe operating standard. Hibbard installed five small Peerless units that cycle on or off depending on outside air temperature and interior comfort.
These pictures show the units' first significant "upgrade," new motherboards and controls enabling even greater efficiency. In the first picture, Mike opens up the units to disconnect the wiring, Charlie Hibbard, above, inspects the parts delivery, and Chip Hibbard, the tech guy, below, wires in the new motherboard to complete the installation.
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