What Types of Garage Door Openers Are Available?
There are four basic types of garage door openers. Chain-drive openers utilize a chain wrapped around a rail. They are dependable but can be a bit noisy. Belt-drive openers function in a similar way, but they have a metal-reinforced rubber, polyurethane, or fiberglass belt instead of a chain. They are quieter and usually somewhat more expensive. Screw drive openers work with a trolley that rides on a threaded steel rod. Traditionally, these economic openers have functioned best in climates with no dramatic shifts from hot to cold. Direct-drive openers refer to a range of openers, but the term generally means that the chain remains stationary while the motor moves. In addition to these is the jackshaft opener, which is a side-mounted opener useful in situations where the ceiling cannot support an overhead fixture.