Re: Heating a Woodshop
The shop I grew up using was heated by a wood stove made from a 55 gallon drum. Other than knocking the dust off the top of the stove from time to time, there really is a very low probability of igniting dust, you will lose the ability to breathe in the environment long before the ignition point occurs. The only real danger is the use of solvents and flammable finishes around an open flame source.
The use of a pellet stove with sealed combustion would be the more efficient and safe means of heat, you don't need much electricity to run it either.
On the point of airborne dust in a shop. You can minimize this greatly by using point of source vacuum systems (shop vac or dust collection system ) and by placing common fiber type furnace filters over the inlet/outlet of a box fan. The fan will not only circulate the air/heat in the space, the filters will catch the majority of the dust as well.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!