I obtained my parts, as described on this page, from American Garage Door Supply Inc. (http://www.americandoorsupply.com/) They may have raised their small-order prices or imposed a minimum order since I ordered from them in 2002 at the prices in my essay above. The Web site offers a free catalog by PDF download or mail. Springs in 2005 were priced at $2.25/lb.

Bringing simple convenience to your home the Chamberlain Bringing simple convenience to your home the Chamberlain 1-1/4 HP Garage Door Opener provides instant garage access at your fingertips. Featuring innovative built-in smartphone control and battery backup this system ensures that you're never locked out of your home. Boasting a steel reinforced belt drive the B970 features anti-vibration technology ...  More + Product Details Close
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It's a great idea to hire a professional to do your garage door opener installation for a few reasons. First of all, a pro can often be the most time-efficient way to handle the garage door opener installation, because a pro will have the right tools and experience to make your garage door opener installation as swift and smooth as possible. Secondly, a pro garage door opener installation will include making sure all the required garage door opener mounts and sensors are put together properly. A great garage door opener installation will include using the manufacturer’s recommended method of assembly and optimal placement of the garage door opener mount and sensors. Find top-notch garage door opener installation pros on Amazon Home Services and you'll see professional garage door opener installation services at competitive prices. Secure convenience and peace of mind by getting a professional garage door opener installation for your home. You'll never regret adding a garage door opener installation project to your to-do list. If you’re the kind of person who doesn’t have the time or patience to do your garage door opener installation, don’t worry. Because you don’t have to if you don’t want to. Amazon Home Services has you covered, to do your garage door opener installation quickly and professionally. Just schedule the garage door opener installation pro of your choice from our list of top-rated service providers.
Since we're using an 18-inch (1.5 feet) winding lever to wind each spring up to 29 foot-pounds, we must apply a maximum tangential force to the end of the winding lever of about 20 pounds. Later we'll see that the actual weight of this rather dense door is 238 pounds, implying a maximum tangential force on the winding levers of only about 13 pounds!
Smartphone Control: Many newer garage door openers allow you to connect the device to your home's Wi-Fi network, according to RW Garage Doors. You then can open and close the door through a smartphone app. In fact, many of these apps will give you an alert on the smartphone when the garage door is open for a certain period. Some opener models even can connect to your existing Smart Home system, incorporating all your appliances on one system.

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