Read a lot on the cheap breeder and subsequent posts by treecutter and scavier.
used treecutters http://www.talonfiremage.pwp.blueyonder.co.uk/v3/reactorplan…j5a3s8ojmospjv9
then tried
http://www.talonfiremage.pwp.blueyonder.co.uk/v3/reactorplan…pt4tkl2uinqopg5
doesn't look like it'll blow up. shows same breeder stats as the previous one. just higher heat and can auto below hurt which is nice for me as i throw 2 of these into my workshop room without worry.
takes 19 - 23 heating cells