Thank you for your question on the model ERV250TE energy recovery ventilator. There are a couple of different installation options available with the ERV250TE and one of them is to retrofit into existing HVAC ductwork. The installation instructions are available for download from our web site and they show this option. Please contact the Technical Service Department at 800-637-1453 if you need further assistance.
Date published: 2016-07-14