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Hi everyone - had a question about these two openers. Is the only difference between the two the battery backup? I have a whole house backup generator with a transfer switch, so I really don't need a battery backup, but does the 8550w offer anything else that the 8557w doesn't? Thanks!

Hi all - any tips for fixing/repairing cracking in cinder block? How concerned should I be with cracks in these types of walls for my garage? thanks!

Talking to an installer in the Chicago area today and he mentioned that liftmaster is taking all of their lines to the W designation, which from my understanding means you don't have to purchase the separate internet gateway. Is this correct? Does anyone have any more info on when the jackshaft...