[glamgalglass]

I am installing a new vent system and am considering using a funnel positioned with the torch blowing straight into it instead of installing a full fume hood. I saw this at Lucio's studio in Italy and thought that it made sense.

I have had a look thought the ventillation threads, but most are geared towards the fume hood set up.

Does anyone use a funnel set up? Is this as effective as a full fume hood? Does the same surface area formula for fan sizing apply to the funnel set up? For those of you who have full fume hoods, did you consider using a funnel? Why did you choose the vent hood instead?

Thanks muchly.