A Ventilator Designed for Use Where Space is Limited

Greenheck Fan Corp. has added a new ventilator, the Model IV, to its lineup of units that bring in 100% outdoor air. It joins the existing Model IVE. Both are built for tight spaces, like mechanical rooms, attics, and basements, and are designed to fit through 30-inch doors and elevators or hang from a ceiling.

The two models differ mainly in how they handle energy. The Model IVE uses a small enthalpy wheel, a spinning device that transfers both heat and moisture between incoming and outgoing air, cutting energy loss by up to 85%. The Model IV skips that feature. Both come with hot water and chilled water coils, plus electric backup heat up to 45 kW.

This kind of equipment is mainly aimed at commercial and institutional buildings, like schools, hospitals, and nursing homes that need constant fresh-air ventilation, as well as high-rises and buildings with roof shapes that make a rooftop ventilation system impractical. It is also pitched for all-electric building projects. There is no direct residential rebate or program tied to this announcement, and it is not a product built for typical single-family homes. Still, for homeowners paying attention to trends in electrification and indoor air quality, it is a sign that manufacturers keep developing more compact, efficient equipment for delivering outdoor air, which may eventually filter down into home-scale options.