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John, restaurant equipment technician
Category: Appliance
Satisfied Customers: 2121
Experience:  25+ years experience. I'm now employed by a commercial cooking equipment service company
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How to convert a tappan gurney natural gas range to propane

Customer Question

How to convert a tappan gurney natural gas range to propane ?
Submitted: 6 years ago.
Category: Appliance
Expert:  John replied 6 years ago.
What type of ignition system does the gurney use?
Customer: replied 6 years ago.
What do you need to know?
Expert:  John replied 6 years ago.
Do you have an electronic spark or a standing pilot flame?
Customer: replied 6 years ago.
Manual lighting of pilot - standing pilot flame - for top elements.
Expert:  John replied 6 years ago.

OK. Now back to your question. In order to convert to lpg operation, you need to replace the burner orifices with ones sized for lpg operation. Roughly speaking, you need orifices with half the drill size as you now have for natural gas. To determine the proper drill size, go to ''. You can download a very useful conversion chart at the website.

If you need further assistance, please post back to me.

Customer: replied 6 years ago.

Smile Hi Jon - This stove is as old as you are probably - so maybe 20 years experiece may not cut it - on the tag it says that this range can be used for propane or natural gas - it seems to say that for propane use the orifice hoods must be screwed down tight - we did that and get a nice flame - so according to the instructions this range has adjustable orifices. The BTU rating for the oven - natural gas = 24000 - propane = 21000 - we were more concerned about the safety aspect - and hoping to bypass the electrical sensor for the oven as there is no electricity there - or do we need some sort of sensor that is not governed electrically - or can the oven temperature control switch be used as is? thanks Joe


Expert:  John replied 6 years ago.
That old, huh? The good news is that things did'nt become complicated until someone thought it would be a good idea to use electronic controls for everything. If this stove is set up the way you say, you'll want to keep the thermocouple sensor set up for the oven burner pilot assembly. The thermocouple is the flame proofer for the gas valve. If it does'nt send the necessary signal to the valve, the valve won't provide gas to the burner. This system was developed following many fires caused by explosions and fires that were caused by totally manual oven systems.

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