Maiocco & Associates offers the most reliable, made in the USA, retrofit heat recovery wheel available. The TR SERIES THERMOWHEEL® is designed from the ground up to be installed in the field as a replacement for existing heat recovery wheel products. The TR SERIES is a direct replacement for Berner, Cargocaire, SEMCO, Regenerative Heat Corp., Enreco, Governair, Flakt, Wing, Carnes, Heat Recovery Corp., Munters, DesChamps, NovelAire and others. If your existing wheel is not listed on the chart, call us. We will provide a retrofit form for your type of wheel.