They are too small to "heat"
It depends on the size, square footage and height of the ceilings. I have that model and unless you stand right in front of it, it's not much heat. Good for a deer blind or fishing shack to warm your hands but not really enough capacity for a shop.
If it's a garage with a cement floor, there are safety issues with an open flame. You will be cold. If it's a basement, then there are safety issues also. I use electric heaters and have well insulated walls and a wood floor in the woodshop. I keep it at about 50F and raise it to 55F or stand in front of it occasionally to warm up. Once you get moving, sawing, planing, etc. you will warm up. I don't like working on cold cast iron tools, but that's just the way things are here. I live in Michigan.
I may put in a small woodstove in the woodshop, since there is so much scrap wood to burn. I'm not that concerned with dust or sparks, but really the loss of floor space. Cement board makes a decent hearth that's fireproof. we'll see. I don't really want to install a roof chimney in the cold weather either. That means a 90 degree turn and out the wall and another 90 degree to go up... :thumbdown: