wrote in message

I have no problem turning off the furnance when I am in the shop,
'cause it's my home and mine alone! But what about dust particles
being sent into the rest of my home where I won't be wearing a HEPA
mask when the furnance is on.

Will the open flames of the oil burning make that a non issue?

No, the heated air does not see the flame.


Granted, I have a filter on the furnance, but I think that is on the
intake side.


All the air going through the house will go through the filter. You want to
change them frequently to avoid obstructions. I'd also consider building or
buying an air filter and use it in the work area. It will suck up much of
the loose particles that the DC does not get.
--
Ed
http://pages.cthome.net/edhome/