A short-list of BBQ Grills and Conversion status and Drill Sizes
- Summerset – Sizzler – TRL – Alturi – STG – All Summerset come with Conversion kits at no additional charge
- Twin Egales – Some Twin Eagles comes with conversion kits at no additional charge (they maybe all but we have seen them)
- Lynx – Lynx offers conversion kits at an additional fee
- Viking – Viking offers conversion kits at an additional fee
- Weber – Contact Frank at Weber Part Center.com Conversion kits Frank at 877-731-8081, only conversion company available. approximately $179 for 3 burner, and $329 for Summit 6-8 burner conversion kit.
- Some Char-Broil Grills and Brinkman sold typically by Home Depot and or Lowes sell them at the stores for around $80
Note: If the manufacture does not offer a conversion kit then it probably is not available. TheGrillFather.com does NOT sell any kits other than the Brands we sell and that are available.
Drilling out your Grill or Stove Propane Orifices from LP to Natural Gas
Moving from Propane to Natural Gas is the ONLY direction that will allow you to do this because the hole for Natural Gas is smaller and technically can be drilled out. Do we recommend it to the average user? NO we do not .
What size hole should you have for your orifices?
There is very little information anywhere on what sizes orifices are for what grills – All Sizes are in Drill numbers and in MM or Millimeters, the small the number of the drill, the Larger the hole.
A rule of thumb between LP and Natural Gas and are broken down into Tube burners and Cast Burners
LP or Liquid Propane Grills -
LP Grills orifices that are 26″-32″ Tube burners and side burners uses – roughly #55 =1.33mm hole
LP Grills orifices that are 26″-32″ Cast burners uses – roughly #56 = 1.2mm hole
Back burners average between #59 = 1.05mm or #60 = 1.0mm
Natural Gas Grills -
Natural Gas Grill orifices that are 30″ Tube burner uses #42 = 2.35mm hole
Back burners average
Natural Gas Grill orifices that are 36″-42″ cast or brass burner burner uses #42 or 2.35mm hole
Back burners average between #48mm = 1.93mm hole and #53 = 1.5mm hole
Here are Words of wisdom from an experienced blogger
Converting from LP to natural gas safely and correctly involves more than might be apparent to the typical DIYer.
Frankly, it’s folly to drill out orifices. If you can get the correct orifice, don’t do it.
You need to get the correct sized orifice, get the gas pressure correct which may involve a new regulator, adjust the primary air shutters correctly and generally be able to look at the equipment and how it’s operating to be sure it’s correct.
Not really a good DIY project, in my opinion. Too many things that require some judgment and experience to get correct.
Sources – Read more:
One more from a 15 Year veteran
You need to contact the manufacturer for a conversion kit. The most important thing in that conversion kit is a new rating plate for the appliance. This certifies that the manufacturer has “approved” the appliance for use with that fuel. 15 years ago we could just drill out orifices and away you go, but those days are long gone! The liability is too great.
If you “Mcgyver” the grill and convert it yourself, you better pray long and hard that no one gets hurt by that thing or it causes a fire! Insurance companies will deny any claims and the manufacturer will take no responsibility because you have “altered” the appliance.
Trust me! It’s not worth the risk! Either get an approved conversion kit or just replace the grill with a new natural gas model.
21 years experience in the propane business and a licenced gas fitter.