There is no set size. The size depends on how many Btu of heat is needed for the burner in the appliance , heater or machine you are running .
A Natural Gas Orifice is Larger.
Change out the gas flow orifice size to propane and adjust the gas valve.
No, the orifices are sized different between Natural Gas and Propane as their properties are different. Gas Code book has the proper orifice sizes required for each appliance and their BTU's.
Get a certified technician to work on gas. He will have to change the orifice, possibly the gas valve.
A supply house such as johnstone. Take all information of the furnace and old orifice with you and show them what you need.
A Natural Gas Orifice is Larger.
Change out the gas flow orifice size to propane and adjust the gas valve.
There is a little orifice in the heater with a different size gas supply hole to be changed.
LP and Natural Gas burners usually have a different orifice size, due to different heat values between the two fuels. Check with your local gas service company, and see if the orifice (that's the part with the tiny hole in it) can be changed on your logs.
No, the orifices are sized different between Natural Gas and Propane as their properties are different. Gas Code book has the proper orifice sizes required for each appliance and their BTU's.
change the gas flow metering orifice size
yes
It is best to contact the appliance manufacturer for correct orifice size when converting from one type of gas to another.
Get a certified technician to work on gas. He will have to change the orifice, possibly the gas valve.
Assuming the following typical conditions:natural gas manifold pressure is 3.5" w.c.propane manifold pressure is 10" w.c.natural gas and propane specific gravities are 0.6 and 1.52 relative to airnatural gas and propane energies per cubic foot are 1038 and 2516 BTUyour orifice coefficients are the samethen the propane orifice diameter should be 0.623 times the natural gas orifice diameter.
A supply house such as johnstone. Take all information of the furnace and old orifice with you and show them what you need.
Oder the part from the company, a different orifice