VEVOR Hand Chain Hoist, 2200 lbs /1 Ton Capacity Chain Block, 20ft/6m Lift Manual Hand Chain Block, Manual Hoist with Industrial-Grade Steel Construction for Lifting Good in Transport & Workshop, Yell

I would have to say 12' is probably the max you would want to hang it.

Not sure about the question, but here's what I know. I bought the 20 ft. model. On top of the hoist is just a large hook. All the way extended ( out ) the lift chain when the hoist is hung up by the large top hook is 20 ft.long from hook to hook. The drive chain goes almost to the ground when the lift chain is all the way out and hook is on the ground when hoist is hung up. There was nothing white about it, the black powder that's on the chains will come off on your hands big time. Wear gloves for that.

I don’t think so Mine is only 7.5 feet above the floor and I might get another 3 or 4 feet Why not hang a strong chain from that 20 foot point to make up the difference?

Yes