gingery_machines @Wiki gas_designs

machine#construction: casting#furnaces: gas: gas_designs

building with firebrick, lost foam core construction

There are two main types of gas burners - naturally aspirated and fan-forced.

Naturally aspirated:
http://www.frontiernet.net/~gnreil/design.shtml (Ron Reil's excellent Burner site)
http://www.backyardmetalcasting.com/oliverburner1.html
http://myweb.absa.co.za/gjnelson/burner.htm
http://www.geocities.com/zoellerforge/sidearm.html
http://www.geocities.com/zoellerforge/tubeburners.html

Fan-forced:
fenn take a pic of your forced air natural gas burner!

links:
http://www.abymc.com/Articles/Submitted/BigBedCasting.html Tilting reverberatory furnace, two piece, foam burnout core design. Includes video of operation.