Shop/Garage Heater suggestions please

The electric furnace in my house is 10 kw. You know its a little light on -40 days...
A heater you can move around to take the chill off where you are working may be all you need.
Warm tools are nice.

Someone put a self adhesive oil pan heater on the underside of his steel workbench to help with cold tools.

A couple heated tailgates off of the ford trucks,the ones that keep tech’s hands from freezing when they push them into the shop.
That would heat your garage.....