Hoyme Manufacturing Fresh Air Dampers CSA-certified motorized inline and terminating-end dampers for fresh air intake, make-up air, and HRV/ERV duct control. Spring return, 24 Vac standard. Sizes 2"–20". All factory-configured — specify size, action, and options at order.

CSA CertifiedCore product line

Spring ReturnFail-safe operation

9 Products2"–20" round duct

Free Support1-800-661-7382

Cold Climate Products

3 products

Showing 1 - 3 of 3 products

Factory-insulated damper bodies for installations in unconditioned space — cold climates, exterior walls, crawlspaces, or any location where the damper body is exposed to temperatures that cause condensation. Factory insulation is applied before assembly, covering the actuator housing and wiring penetrations where field-wrapping fails first. Specify when the damper location will see temperatures below the indoor dewpoint. 24 Vac and 120 Vac options.

Showing 1 - 3 of 3 products

HAC-L Insulated Inline Fresh Air Damper — CSA Certified, 24 Vac, 2"–9", Factory-Insulated Body

From $199.00 CAD

MAC Motorized Fresh Air Damper — CSA Certified, Terminating End, 24 Vac, 4"–9"

From $223.00 CAD

HAC-12L Insulated Inline Fresh Air Damper — 120 Vac, Built-In Transformer, Factory-Insulated Body, 4"–9"

From $249.00 CAD

Not sure which product is right for your job?

Call Hoyme technical support — free for contractors and installers. Our team matches the right product to your application and jurisdiction.

Call 1-800-661-7382 Technical Library All Products