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  Do you have questions about your garage door opener, or an opener that you plan to buy? The following are 10 of the questions that are most often asked when it comes to these openers when they are getting ready to purchase a garage door opener. If you have questions, we should answer many of them in the questions that follow. What Types of Garage Door Openers Are Available Today? When it comes to garage door openers with a trolley, you will find that there are two models available. They are the chain drive and the belt drive. A chain drive opener may have a combination of a chain and a metal cable, or they could be a full chain system. The systems that are chain only are going to be of a higher quality. The belt drive model has a metal-reinforced rubber belt. This type of opener tends to be quite a bit quieter, and it works well for those who have a bedroom located above the garage. What Are the Motor Sizes? Two size motors are available today. They are the ½ and the ¾ horsepower mot