Dust and VFD's

Seeing BobL's Linisher http://ift.tt/1lsR0g2 has me wondering what people do about VFD's and dust. Industrially they are put in cabinets although that could be more a physical protection thing, but for home use what do people do? I have to mount one soon for the grinder and am debating either

• putting it on a post and let it take it's chances


• putting it in an enclosure (but then ventilation becomes an issue). Reading the specs, the clearances make the enclosure way big


• putting it in a duct/ chimney so that dust can't fall directly on it but heat can be convected away

My workshop is mixed, so there is metal dust (and grinding dust) as well as wood dust and all the other things that are found in garages



Michael