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Glossary - hood orifice


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.

If you would like us to drill the orifice(s) for you, there is a single $15 fee for this service, which will be added to the order when processed. Please tell us the number of burners in your grill and the total BTUs of your grill (less side burner and rotisserie burner, if any). BTU rating information can usually be found on the grill's CSA certification tag, located somewhere on the grill. Please furnish this, along with any other information you deem relevant, in the Message to CLA box during checkout.




NOTE: The information provided on this site is for reference only. Always consult your grill owners manual and manufacturers specifications before attempting any repairs. Read and follow manufacturer’s instructions. Use only in compliance with applicable codes. When in doubt, contact the grill manufacturer or your local gas company.
WARNING: When improperly installed, repaired, or operated, gas grills can be dangerous. If you are not comfortable replacing parts, we recommend you contact a local gas appliance service company for assistance.

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