I have a GWH1600h LP. can this unit be converted to natural gas with orfice change? If so, where to obtain the part. Thx much. Al

being this is a commercial oven you will nee3d to go to a commercial parts purveyor to get the conversion parts,on residential units the orfices are included with the range when new for conversion at any time,the gas orfices need to be changed on the top burners,then the orfice spuds in the oven bake and broil units need to be turned down onto the orfice for conversion,your commercial parts person will have the steps with the conversion kit to do the change-over

Yes you will need to change them. The flame will be large and eratic if not changed.

you need too change the orfice about 10.00

Not really sure which model you have but when converting the over, ether bake or broil burner you tighten down the orfice cap. If you remove the burner off the oven valve you will notice that you can put a wrench on the orfice cap. Just tighten snuggly. If you over tighten you will crush the orfice under the cap.

the burner orfices will have to be changed ans pressure reg / some have either /or reg / just turn lever to the fuel you are using . but always change the orfices to gas or lp . blk is lp copper nat gas .. you can probably do it with out the instructions it's very simple .. if the other set of orfice's are not in or on range then order them for your model . ..mm

First thing you will need to do is find out from the manufacturer of the oven if there is a conversion kit available and if the appliance is convertable. If there is then you can order the kit and follow the installation instructions. Also check the back of the oven for an envelope that may contain the gas orfice replacement heads to convert the appliance to natural gas. If you find the replacement orfice then you will need to remove the lp orfice from the burner and install the natural one. Then the appliance gas regulator will need to have the pressure adjusted lower for natural gas. There is usually a removable cap on top of the regulator on the oven. When you remove this cap there is usually a small metal ring that you can remove and flip over. It will say "nat" on one side and "lp" on the other. You will need to turn this ring over and re-insert so it displays "nat". This will change the gas pressure from 13 inches W.C. to 4 inches W.C. Some appliances only require the orfice change and no regulator adjustment but make sure that is the case with your oven because if you feed 13 inches W.C. pressure to a burner with a natural gas orfice...YOU WILL GET A HUGE BURNER FLAME AND MAY BURN/FLASH YOURSELF...So use extreme caution when converting a gas appliance. And if the oven has a pilot you will need to adjust the pilot pressure or change it's orfice if it has one. If it is electronic ignition no adjustment to that will be needed. Also unplug the electrical power the the unit while working on it.

I know they won't convert gas water heaters but I didn't know they were afraid of stoves. See if your gas company will help. Sometimes they can drill out the orfices. Some of the older repair people still remember how to do this. The orfice for natural gas is larger as the pressure is a lot less. The gas pressure regulator will also need to be replaced. This can be done with a generic part.

you need to change the gas regulator (if installed on back of oven),pilot and burner orfice your ready to go.happy new year.