BURNERS:

Webster Engineering
Forced Draft Burners
Multiple fuels - Low NOx
1/2 to 200 Million BTUH input

http://www.webster-engineering.com/

Hauck Manufacturing
Process Burners for Industry
Multiple Fuel - low NOx
Burner Components

http://www.hauckburner.com/

S.T. Johnson Burners Efficient gas & oil fired burners.

http://www.johnsonburners.com/

Alzeta Efficient Low NOx Burners