Garage Door Opener
My personal choice is always a screw drive operator....smoother, but does require a little maintenance. As stated above, HP means very little in garage door applications, if the door is correctly installed. We just installed a 16 high by 24 wide insulated door, very, very heavy. 4 - 6 inch diameter by 4 feet long torsion springs, and the operator horsepower is only 3/4. And this is a commercial application.
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