will I get seed in an aeropontic set up?

What exactly do you mean by that? Like will the cannabis produce seeds?

And that venting idea is a great one considering you can cut out the cost of the heater by doing that (less energy=safer grow:thumbsup Yeah and it gets old dealing with other people when ya can take the time for your own bud....

Also it probably would be better to start with soil, so that you know what more to expect in case something does happen....Like you said, it's def. safer route....i myself haven't tried a hydroponic set up like that yet, i'm growing in soil myself will have pictures uploaded soon to see