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You need to change the jets , different gasses have a different size hole in the jet.
The manufacture supplies other jets, if the appliance is designed for both gasses.
LP (propane) jets have a smaller hole than Natural (Methane) Gas.
The pressure of LP gas is higher, to be able to suck in more oxygen.
call me. converting a barbecue is simple; the kind of job a tech will get while still in training. The LP hole is smaller than the NG becuse of mass and air-mixture in NG so the orifices have to be plugged and re-drilled or replaced with new LP orifices.
Hi, You must get a tradesman or technician who is qualified to convert a gas appliance, your local gas fitter or plumber should be able to help with this. the regulator needs to be changed the jets also need to be swapped out for the type of gas to be used. normally from lpg to Natural gas the jet size needs to be increased by installing new jets or by drilling out the old ones Hope that helped
Weber sells conversion kits. Basically, you need a new regulator and manifold to accommodate LP instead of the existing regulator/manifold setup for natural gas. Unfortunately, Weber does not sell their parts online. Their parts phone # is: 877-731-8081
at the end of the pipe that loosely goes into the burner assembly, there is a nut or metal part that has a small hole that the gas goes through ... that is the "gas jet" .. they have different size holes for natural and lp gas .. the manufacturer should have both .. usually it just unscrews and the new one screws in its place .. there would be one for each burner .. if there is only one burner then you need just one replacement jet with a hole size suitable for Lp gas .. you might be able to get the new jet from a local hardware store if you take the old one with you so they can get the size and style right ..
If the grill can be converted, it's usually a matter of providing a source for the natural gas and then changing the gas jets for the burner(s) and possibly a regulator, depending on your model. Some grills may require changing the gas burner valves themselves. Kits are usually available from a dealer unless the unit is old.
The natural gas jet will be slightly larger than the propane jet because natural gas doesn't have as high a heating value as propane.
If you do this, check your new conversion for any leaks using a soap solution in a spray bottle.
Just be aware that the grill may not get as hot with natural gas and cooking could take a little longer, but should still work just fine.
Your natural gas line should typically be about 1/2" unless it's huge or is over 50-60 feet away from the grill location. If so, use a 3/4" line. Piping material and methods are usually governed by your local building codes.