In doing this, I do not disturb the flasks, and the molten wax does not continue cooking until it is burned away. Much less stink in the building.
Since we are talking about it, I think that if you are smelling
burning wax in the building you probably need a ventilation upgrade.
I can’t smell a thing during a burnout. If fact, I was making some
counter tops and shelving for the shop using contact cement (super
stinky) to attach the Formica and nobody else in the building could
smell it because I was doing it near the vent hood for the kilns.
For a single hood I have a heating and cooling guy make a
24"x24"x12" sheet metal hood, run 4" pipe from the center top of the
hood that increases to 6" pipe and use an inline Fantech fan that
vents to the outside. I have the top of the kiln just a bit higher
than, and inside of, the bottom lip of the hood. That does two
things, it allows the hood vent to capture any of the fumes and it
keeps the floor of the kiln just about eye level. I like the kiln
higher up so I don’t get the blast of heat in my face when I open
the door. I also use a dimmer switch to allow me to adjust the fan
speed.
I’ve run separate vents to each of the workstations to provide
ventilation around the shop. It works great and really wasn’t that
expensive. Hood, fan and vents in a one person studio wouldn’t cost
much more than about $700 even if you pay someone else to do it.
Mark