Shop/Garage Heater suggestions please

Have 14 ft ceilings in a 24 X 36 foot shop (864 sqft - 12,000 cuft).

Being in NC the wx is not extreme but getting cold enough that this old man requires some heat source. I have a metal building, concrete floors and a couple of skylights.
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I want electric with a fan because I will not use it a whole lot, but I will need it. I believe a 7,500 to 10,000 watt 220v can forced heater will work I believe. Because of the tall ceilings I need too mount it high as I hope to put in a lift.

If you have ideas or suggestions that have worked for you, or problems, please advise!

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Got any better pictures of the framing of the building? Looks to my like you have a standard metal building insulation with the wmpvr facing. Likely an r13 or r19.