The ventilation system must include a damper. If the roof or wall cap already has a built-in damper, the damper on the range hood’s top/back outlet may not be necessary. The damper for the vent adaptor is not included and is sold separately. Improper installation of the damper may reduce airflow performance. Customers. Can order the air damper separately by emailing sales@vesta.kitchen. Please get in touch with customer support for assistance.
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Gas vs. Electric Cooktop