Residential Air Infiltration and Ventilation Study in New York State

Peter Strunk, Synertech Systems Corporation
Laurence F. Kinney, Ph.D., Synertech Systems Corporation, E Source, inc.
RobertM Carver, P. E., New York State Energy Research and Development Authority

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Abstract

This paper summarizes an evaluation of four types of continuous-capable mechanical ventilation systems installed at eight homes in upstate NewYork. Continuous-capable systems are able to provide full ventilation rates at all times without assistance from natural ventilation. Measurements of air exchange, airfiows, pressuredifferences, and electrical powerconsumption were made to assess the systems’ performance. Design and installation practices, as well as installation costs, were also evaluated. Seven of the eight installed ventilation approaches made a measurable improvement in their homes’ ventilation rates. When continuously operated, five of the eight approaches increased their homes’ ventilation rates to a level that met or exceeded recommended American Society of Heating, Refrigerating, and Air-conditioning Engineers’ guidelines. The estimated annual heating and cooling cost increase when the ventilation systems were operated continuously ranged from $65 for heat-recovery units to $300 foroutside air-duct systems that relied on furnace fans for distribution. The installation costs ranged from $1,500 for simple exhaust-only systems to $3,500 for stand-alone heat-recovery systems, excluding contractor profit.