SMACNA’s contractor, Total Comfort Solutions (TCS), of Philadelphia, installed the HVAC system for the second “green” home built in Doylestown, Pennsylvania, which was the first in the state to be registered for certification in the Leadership in Energy and Environmental Design (LEED) building program.

The owner and designer of the house, David Hartke, an architect and an expert on sustainable design, said that the energy-efficient ventilation and heating system was one of the key components necessary to obtain the green rating. According to Hartke, the energy and ventilation system is the most important feature to create and promote sustainable buildings because of its impact on resources and operating costs.

TCS designed the entire HVAC system and performed all of the heat gain/loss calculations. Equipment and materials included geothermal equipment, a Carrier variable speed air handler, galvanized ductwork, media air cleaners, duct sealant, programmable thermostats and R-8 duct insulation.

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