4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert
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8,784 reviews
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50+ products
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HVAC Ducting
Experiential insights by users
About 4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert
Overall Feedback:
98% positive
96% appreciated the improved airflow
Once I installed it, the damper worked great and stopped the cold outside air from entering the stove exhaust.
97% liked the seamless integration with existing systems
I installed the product where the exhaust went into the wall and it completely fixed the issue.
After ensuring that I bought the right size for my fan outlet and air line, the installation was easy.
97% found the installation process straightforward
My friend installed the product and solved the problem in less than an hour.
I have specific information about the installation of the damper. The flaps should be oriented vertically and the damper needs to be connected to the duct work in a specific way. The crimped end of the duct should be cut off as it will not fit into the damper. Sheet metal screws should be installed carefully to avoid interfering with the flaps.
95% liked the effective insulation
After installation, the damper worked great in stopping cold outside air from entering the stove exhaust.
93% appreciated the quieter operation
The product stopped the popping noise from my vent fan in the wind.
The flaps have a rubber seal that prevents any banging noise.
