If that was a cordless heat gun I’d be interested at that price, although the battery probably wouldn’t last more than an hour or so.
I’m looking at getting a Makita heat gun for work, they take the big 5.0Ah batteries, but we have a cordless vacuum that uses the same batteries, plus a charger, so I could buy the bare gun for around £60.
And no, work wouldn’t buy one, and most of the workshop guys have their own tools, my colleagues who fit the dual-controls have their own tools, mostly Makita in the case of drills, and I’m getting fed up of dragging thirty feet of extension cable around with my heat gun attached!