After 9-10 years I'm finally getting back into brewing and built an electric herms.Due to cash depleted equipment fund, I didn't want to go crazy or Jerry rig a vent Hood and ended up settled on this. About $50-$60 in air duct reducers from 20" to 16", 16" to 10", 10" to 8", 8" to 6" then a 90°...