If a house is sealed tight with spray foam insulation, it is much harder for moisture to leave the house naturally. While most spray-foam homes are required to have some form of mechanical ventilation (ventilation to ASHRAE 62.2 Standard is recommended), there are many questions on how best to provide it.

The ComfortBreeze ™ evaporative humidifier line combines advanced microprocessor control with conventional evaporative technology. The units are available with optional patent-pending ComfortSmart™ technology to minimize water consumption while maintaining a comfortable humidity in the home.

Model 8000 has been added to the York® Affinity™ Series premium humidifiers. The residential steam humidifier is 10-1/8 inches wide by 7-1/8 inches deep by 20-7/8 inches high and can deliver up to 23.3 gallons of humidity per day — enough to effectively humidify a 5,000-square-foot home, the company said.

Capable of removing up to 105 pints of water a day while using only 4.9 A of energy (8.8 pints per kWh), the Ultra-Aire™ XT105H whole-house dehumidifier is designed for homes up to 2,500 square feet. Optional fresh outdoor air may be ducted to the unit, providing fresh air to dilute pollutants.

The energy recovery dehumidification systems utilize highly efficient passive heat pipe technology. ACT-HP-WA Wrap-Around dehumidification systems can be easily installed in existing or new vertical or horizontal air handlers. The system is designed in a U-shape to wrap around the existing evaporator coil of an HVAC system.

Compatible with virtually every make and model of forced-air systems and ideal for use with heat pumps, the residential Steam Humidifier is a high-efficiency, low-maintenance humidifier, said the company. The humidifier will operate in the heating system without the need for a call for heat.

Using a revolutionary combination of desiccants and non-ozone depleting refrigerants, DryCool™ HD dehumidification system delivers cool, dry air for light commercial applications, improving comfort without increasing air conditioning loads.

Providing operators the ability to control temperature and humidity independently, the DryCool™ Standard Dedicated Outdoor Air System (DOAS) is designed to cost effectively treat 100 percent makeup air.

Joining the line of the company’s IAQ products are three Luxaire Acclimate central dehumidifiers. The 65-, 90-, and 135-pint models are designed to remove excess moisture from the air and improve comfort levels.

Expanding the line of York® Affinity™ IAQ products, the company has added three central dehumidifiers — a 65-, 90-, and 135-pint model.