Orifice Sizing for your Natural Draft Burner

With our calculator you'll be able to easily find your orifice size so you can get what's needed for your application.

Orifice
1000per scf
800per scf1200per scf

BTU Value of Propane Gas

2500per/scf

BTU Value of Butane Gas

3200per/scf
66%
50%82%

Additional Info