How much weight can a garage door opener lift: Over 100 pounds!

Like many other motors, garage door openers are rated with horsepower (hp) or horsepower similar (hps) for DC motors. Based on this rating a 1/2 HP opener should be able to lift about 185 pounds and a 3/4 HP opener should be able to lift over 370 pounds. Unfortunately, this is not the case since......