We're always happy to hear from our customers. If you would like more information, you can contact us in any of the following ways: ClassicAire Wood Vents 9325 SW Barber Street Wilsonville, Oregon 97070 Toll Free: 1(800) 545-8368 Local: (503) 855-2000 Fax: 1(800) 886-1667 Email: classic@classicvents...