That is not true. The actual burner has nothing to do with NG or LP. The only differences between an appliance fabricated to use LP or NG is the gas orifices and gas regulator are different and the valves and burner carburetor has to be adjusted. The burners are the same in both LP and NG models.
I would not recommend natural gas bbqing. It would make more sense to continue to use propane, or even charcoal. Natural gas may introduce carcinogens into your food.
A Barbecue takes either butane or propane.
Propane
Propane which is C3H8
Check the manufacturers specs or gas code book. TSSA B149.1 installation of natural gas and propane appliances if you are in Ontario Canada.
They are two different fuels with different properties, ie, natural gas = 1000 BTU/hour per cubic foot, Propane = 2500 BTU/hour per cubic foot (vapor). Most burners can be converted by simply changing to the recommended burner nozzles. Additionally the pressure regulator and /or fuel valve may need to be changed.
It will require a different set of burners. The valve mechanism will also need to be changed. Other than that, it's pretty straight forward.
are propane barbeque grills legal on condo or apartment balconies or decks in the state of massachusetts
btu of natural gas to btu of propane
Propane is NOT cheaper than natural gas
Barbecue grills use propane, a kind of fossil fuels.
propane tanks have left-hand threads.