I bought a used gas Maytag Neptune md. # MDG4000AWW. I want to use it with natural gas, but I noticed a sticker applied by the model number tag that says it is converted to propane gas. Can I still use this with natural gas, or do I need to change the oriface? How can I tell what oriface it does have? Thanks

In every gas burner there is an insert that sets the air-gas mixture.
There are inserts for any type of gas.
Take one out and bring it to a supplier of spare parts for this kind of equipment and get the proper inserts for the gas type you want to use.

Success !

:)

OK, Thanks I'll check into that. I had a friend come over and we put a water column meter on the gas valve. Set it to the proper setting, and the dryer seems to burn and heat good. But, I'll check the orifice also.