20 Most Recent Weber S-420 (NG) Questions & Answers

On the weber model you need to purchase the natural gas model. It will cost you alot more to buy all parts needed to convert. Weber doesnt want you to convert do to safety reasons. This is why they will only tell you you can't convert. Buy the right grill and save yourself a headache.

Weber S-420 (NG) | Answered on Jan 09, 2015

Weber no longer offers any conversion kits...

Check out


Converting any Weber Grill from LP to Natural Gas or the other way around will VOID the warranty.

But at the link above you will find more info if you don't care about warranty.

Weber S-420 (NG) | Answered on Jan 09, 2015

Hi, you can purchase your kit at amazon, click here and take a look: Amazon com weber grill conversion kit to natural gas. I hope this was helpful. Cheers

Weber S-420 (NG) | Answered on Jan 09, 2015

Try Calgary BBQ center they are on line

Weber S-420 (NG) | Answered on May 08, 2012

eber does not sell conversion kits for any of their gas grills.Nor, do they recommend converting them, as a matter of safety. Each grill whether Natural Gas or Propane is tested and approved for that specific gas type.With Weber grills,as with many other brands, there's more to converting the grill from one gas type to another, than just changing the burner orifices. It also requires changing all the burners, because their venturi valves (air intake) are not adjustable.

Hope this helps you and thank you for choosing FixYa.

Weber S-420 (NG) | Answered on Aug 15, 2011

Unfortunately, Weber does not encourage or approve converting their grills from one gas type to another. Nor, do they sell any conversion kits or parts to do this. It's all in the interest of safety. Even if you attempted so do it, the parts alone would cost you almost as much, if not as much, as the restocking fee the seller wants to charge you. From what you have said, I suspect you bought the grill online, rather than from a brick & mortar retail store.


The link above, is only for you to confirm what I have told you.

Sorry I didn't have better news for you.

Weber S-420 (NG) | Answered on Jun 03, 2011

check the wire to the ignitor if it is good replace the ignitor

Weber S-420 (NG) | Answered on Aug 15, 2010

Weber does not sell conversion kits due to liability reasons. Every part of the grill needs to be changed to convert. Cheaper to buy new grill, I have tried to piece together a parts list to convert, it is cheaper to buy new grill by the time you purchase all parts needed.

Weber S-420 (NG) | Answered on Mar 30, 2010

Online look up Atlanta Grill Service they will have it!

Weber S-420 (NG) | Answered on Oct 18, 2009

Contact weber to see if they have a conversion kit. The venturi for propane and natural gas are different sizes due to the different burning properties of the gasses.

Weber Grilling | Answered on Feb 11, 2018

Fixya is unable to determine parts sources.

Weber Grilling | Answered on Feb 09, 2018

any BBQ shop that sells weber
from weber manufacturer parts store

Weber Grilling | Answered on Feb 01, 2018

Cooking times are dependent on much more than weight. The shape of the roast, the thickness, the uniformity, the outside temperature, the quirks of your grill... the only way to cook a roast properly is with a probe-type thermometer. You decide what temperature you want the center of your roast and cook it until it reaches that temperature. Be sure to cook over the cool side of a two-zone fire and rotate every once in awhile to even out which side faces the fire side.

Weber Grilling | Answered on Jan 09, 2018

probably about 3 hours but check internal temperature with a meat thermometer after 2 and cook until it gets to at least 160

Weber Grilling | Answered on Dec 24, 2017

turning the knob adjusts the flame intensity
it is not doing that and the flame is very low
low gas in the cylinder
blocked jet for the burner

Weber Grilling | Answered on Nov 20, 2017

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