Help Center - Glossary of terms
Hood Orifice
Webster's definition of orifice: an opening (as a vent, mouth, or hole) through which something may pass
For gas grill applications, the orifice "regulates" or "limits" the flow of gas by constriction of the path through which the gas must flow.
An orifice usually threads into a female threaded end of a gas valve (spud orifice), or threads over a male threaded valve end (hood orifice).
Starter hole
For convenience, even so-called "blank" orifices have a small starter hole. This
is because centering and drilling a truly blank orifice without the starter hole
can be difficult outside of the production environment.
Drill size
The size of the hole is determined by a number of factors including the type of gas (LP is typically smaller
than natural gas in a given situation), the BTU rating of the burners, gas pressure at the orifice, and BTU value of the gas. Refer to your owners manual or consult with a qualified gas
technician to determine the exact size required for your grill. As a service to
our customers, we will drill the orifice for you, FREE
of charge.
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