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Guides A-Z

Guide describing how to design HVAC systems to be located within the conditioned space of the home, either in a utility closet or in an air sealed conditioned attic, basement, or crawl space.

Guide describing how to evaluate existing ventilations systems before performing home upgrades.

Guide describing how to install ventilation air inlets in open locations at a safe distance from potential air contamination sources.

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants. 

Guide describing additional requirements for HVAC systems in warm-humid climates to operate in a dehumidification mode to maintain indoor relative humidity at or below 60 percent.