By HPAC MagazineHydronics
RedZone air handlers with ECM motors can be connected to most hot water heaters but are optimized to work with tankless water heaters. In retrofit situations existing ductwork can be used. In new home construction or major renovations, 3 in. diameter mid- or high-velocity mini ducts can be fitted inside standard wall cavities, eliminating the need for extra bulkheads. The RedZone DVS air handler can use either standard or 3 in. diameter ducts.
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