Use the search this forum tool
Dale and Mike have posted a lot of information on vent systems over the years
here is some basic info
http://www.artglassanswers.com/forum...php?f=22&t=150
http://www.artglassanswers.com/forum...php?f=12&t=273
Right now this one is $500.00
http://www.rangehoodsinc.com/product...-Hood-5p93.htm
This is 350.00
http://www.rangehoodsinc.com/product...-Hood-3p28.htm
If you want to put one together
Squirrel cage fans check for used one at a local HVAC contractor
Stock water tank for hood