Greenheck’s new ERVi energy recovery ventilator is designed to fit into limited indoor spaces such as basements, mezzanines, and small mechanical rooms. Available in two compact cabinet options, the ERVi-10 discharges 375–1,500 cfm with a maximum height of 18 inches, while the ERVi-20 discharges 750–2,500 cfm with a maximum height of 23 inches.