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Q&A on Converting an Appliance Natural Gas to LP
or from LP (propane) back to Natural Gas
- POST a QUESTION or COMMENT about gas fuel conversions: LP or "bottled gas" to piped-in natural gas service
FAQs on LP to Natural Gas conversions or Natural Gas to LP fuel conversion procedures:
This article series explains the procedure for converting from LP gas or "bottled gas" to natural gas or "piped in gas" at a building.
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.
FAQs on How to Convert a Gas Appliance From Natural Gas to Propane (or vice versa)
These questions and answers about converting between LP gas and natural gas for appliances, heaters, water heaters, calorifiers, stovetops, gas ranges, etc. were posted originally at GAS APPLIANCE CONVERT LP-to-NATURAL GAS - be sure to review that article.
Watch out: Converting a gas appliance is dangerous if not done correctly and in accordance with the manufacturer's instructions.
Watch out: Most manufacturers require that installation and fuel conversions shall be performed by a trained and qualified service technician.
The technician should be sure to correctly identify the model number of your gas appliance so that s/he can follow the correct details of the manufacturer's instructions.
[Click to enlarge any image]
Illustration: in the cap of some appliance regulators is a simple part that flips over to convert between natural gas and LP gas. Of course the orifices need to be changed too.
On 2020-03-19 1 - by (mod) - Most LPG appliances but not all can be converted to natural gas
Most LPG appliances but not all can be converted to natural gas; contact the manufacturer of your cooker to ask for a gas conversion kit and follow their instructions. Typically you change out one or more gas orifices and change or modify the regulator.
On 2020-03-15 by David
Can a lpg cooker be converted into natural gas
On 2020-03-08 - by (mod) -
Anon
While most gas-fueled appliances and heating systems can be converted between propane and natural gas, that's not the case for every model by every manufacturer.
So if a manufacturer doesn't offer a conversion kit I would not attempt to change the fuel without having a conversation with that company's technical support. It's possible that burner venting or other design features mean that the heater or Appliance cannot be converted.
On 2020-02-09 - by (mod) -
Les
Your plumber or appliance technician will use a manufacturer's conversion kit that has properly-sized gas metering orifices & regulator.
On 2020-02-09 by LES
I WOULD LIKE TO KNOW HOW T CONVERT FROM LP TO NG ON THE ABOVE DRYRE
On 2018-12-12 - by (mod) - if the manufacturer is not offering an LPG to NG conversion kit
I agree that what you describe sounds reasonable but in my experience if the manufacturer is not offering a conversion kit they probably have a reason.
There may be some other feature or difference between those two models that's not obvious.
Watch out: Therefore as a matter of basic life safety I would not make such a change as you propose without first discussing it with the technical support at the manufacturer. If you decide to do that please let me know what they tell you.
On 2018-12-12 by John
Thermador sells ranges for natural gas (PRG366GH) and propane (PRL366GH) but apparently do not sell a conversion kit.
This seems strange considering we just moved from a house in the country using propane to a city house using natural gas and want to continue using an appliance we had made a significant investment.
Any ideas or experience converting this six burner range from LP to natural gas even though the manufacturer does not sell a kit. I have the schematics for both versions - why not just change all the related parts. This should still be less expensive than buying a new range. Any help would be sincerely appreciated
On 2018-10-25 - by (mod) -
often the problem is the gas piping is too small in diameter to deliver adequate flow.
But let's put the question to bed by avoiding speculating and getting some objective data.
Have your technician actually measure the gas pressure to confirm that it is correct.
Then look at the piping distances and the required pipe diameters that will be specified by the manufacturer of your unit.
On 2018-10-25 by Mike
Trying to convert a Ketchen Aid BarBQ grill from propane to natural gas. Handyman said installed kit and offices as required.
But grill will only get to 300 degrees he say not enough gas pressure from main line that was run only for this purpose. We are in Morgan Hill California is there less pressure here ?
Any help?
On 2018-08-18 - by (mod) - Viking Cook top was conversion from LP to NG
I suspect there is an adjustment remaining to be done.
In addition to changing the orifices from LP to NG, and the regulator from LP to NG, there may be an air shutter or mix adjustment at the burner or near the control itself - depending on stove design details.
You'd also want to check the actual pressures in the system, at least as is delivered to the appliance.
See GAS PRESSURES LP vs NATURAL GAS
If you don't have the manual for your Viking cooktop AND if you don't have the instructions for the LP-NG conversion kit from Viking see the manuals and conversion kit instructions and free manual downloads for Viking at
GAS COOKTOP MANUALS
Below I will paste in an excerpt from the LP to NG conversion kit instructions that show that you need to adjust the burner air shutter at the control.
Let me know if you have success or if you have further questions.
On 2018-08-18 by ifoco
My Viking Cook top was just converted from LP to NG by a mechanical contractor. The 5 orifices were changed to NG as well as the regulator. I ordered parts from Viking.
My flame on low is very low and the highest settingis what used to be low when on LP.
The flame on all burners is good solid blue just very short flame. Is it a matter of adjustment or is this the way it is. The heat output is noticeibly less. and not acceptable
On 2018-08-10 - by (mod) -
Anonymous (by private email) asked:
Hello I have Barbequs Galore LPG ,I need to change to Natural Gas but I do not know the right size orifice to use it in Natural Gas , The size of holl LPG orifice is 1.00mm , I do not have any idea to chose the right size for Natural Gas , Please can you help me ,
if you have any picture for orifice please can you send it to me to show me the size. I am in Australia. Thanks very much.
Reply:
Adil
You'll want to review the advice at GAS APPLIANCE CONVERT LP-to-NATURAL GAS
You are right to want the proper-sized orifice and thread fitting to convert from LPG to natural gas. But the orifices are very specific to the appliance.
So even knowing the size marked on the present LPG orifice of 1.mm does not tell us what size to go to for natural gas (though the NG will indeed be bigger).
You should not try to buy a generic part. The orifice is sized also to the burner requirements.
You'll also need to change the regulator.
Take a look at the labels on your barbie - you should see a model number and serial number too.
Then contact Barbeques Galore
I'd like to see a photo of the BBQ and its labels and burner/control/orifice.
But ultimately you need to contact the vendor.
by the way, We do not sell anything.
InspectAPedia.com provides building and environmental diagnostic and repair information.
In order to absolutely assure our readers that we write and report without bias we do not sell any products nor do we have any business or financial relationships that could create such conflicts of interest.
InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information for the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website.
Here's the contact info you need for
Contact Barbeques Galore in Australia
Website: https://www.barbequesgalore.com.au/
Online Store Enquiries
1300 139 867
onlinestore@bbqgalore.com.au
9am - 5pm (Sydney Time), Monday – Friday
1300 BARBEQUES is no longer valid, please contact us on the numbers above.
Head Office
(02) 9735 4111
9am - 5pm (AEST), Monday – Friday
by Mail
PO BOX 195
SYDNEY MARKETS
NSW 2129
On 2018/08/10 Anon asked: how do I get conversion parts for my Barbeque Galore gas grill?
Anonymous (by private email) asked:
Hello I have Barbequs Galore LPG ,I need to change to Natural Gas but I do not know the right size orifice to use it in Natural Gas ,
The size of holl LPG orifice is 1.00mm , I do not have any idea to chose the right size for Natural Gas ,
Please can you help me , if you have any picture for orifice please can you send it to me to show me the size. I am in Australia. Thanks very much.
Reply: Moderator said:
Anon:
You'll want to review the advice at GAS APPLIANCE CONVERT LP-to-NATURAL GAS
You are right to want the proper-sized orifice and thread fitting to convert from LPG to natural gas. But the orifices are very specific to the appliance.
So even knowing the size marked on the present LPG orifice of 1.mm does not tell us what size to go to for natural gas (though the NG will indeed be bigger).
You should not try to buy a generic part. The orifice is sized also to the burner requirements.
You'll also need to change the regulator.
Take a look at the labels on your barbie - you should see a model number and serial number too.
Then contact Barbeques Galore
I'd like to see a photo of the BBQ and its labels and burner/control/orifice.
But ultimately you need to contact the vendor.
Here is a typical statement from a Barbie Installation Manual for a Ziegler and Brown barbeque sold by Barbeques Galore in Australia:
If your barbeque is manufactured to operate from universal LPG (Propane/Butane mix), it can be connected to LPG (Propane) without any alteration. If you wish to connect that barbeque to natural gas, it must be converted beforehand using the appropriate conversion kit available at your nearest Barbeques Galore store.
If your barbeque is manufactured to operate from Natural Gas and you wish to connect to LPG, it must be converted beforehand using the appropriate conversion kit available at your nearest Barbeques Galore store.
Either conversion must be done by a licensed gas fitter or an authorised gas appliance technician.
It is extremely dangerous to use the barbeque with the wrong type of gas. Fire or explosion may result. Conduct a leak test before use.
Barbeques which are connected to twin 45 kg LPG cylinders or to Natural Gas must be installed by a licensed gasfitter, in accordance with the requirements of AS 5601, and local gas authority requirements. -
Source: Ziegler Brown TWIN GRILL OPERATING INSTRUCTIONS [PDF] retrived 2018/-8/10, original source: https://www.barbequesgalore.com.au/media/manuals/ziegler_and_brown/ziegler-and-brown-twin.pdf
By the way, We do not sell anything.
InspectAPedia.com provides building and environmental diagnostic and repair information.
In order to absolutely assure our readers that we write and report without bias we do not sell any products nor do we have any business or financial relationships that could create such conflicts of interest.
InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information for the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website. We very much welcome critique, questions, or content suggestions for our web articles.
Website content contributors, even if it's just a small correction, are cited, quoted, and linked-to from the appropriate additional web pages and articles - which benefits us both. Working together and exchanging information makes us better informed than any individual can be working alone.
A brief summary about InspectAPedia.com can be read at inspectapedia.com/About_Us.htm
Here's the contact info you need for Barbeques Galore in Australia
Website: www.barbequesgalore.com.au/
Online Store Enquiries Tel:
1300 139 867
Online store email: onlinestore@bbqgalore.com.au
9am - 5pm (Sydney Time), Monday – Friday
1300 BARBEQUES is no longer valid, please contact us on the numbers above.
Head Office Telephone: (02) 9735 4111 9am - 5pm (AEST), Monday – Friday
By Mail: Barbeques Galore in Australia,
PO BOX 195
SYDNEY MARKETS
NSW 2129 Australia
On 2017-09-01 by Mod - how to convert an appliance FROM Natural GasTO LP gas
Irritated Anon and to more polite Steve Farber:
At GAS APPLIANCE CONVERT LP-to-NATURAL GAS the steps would simply be reversed to convert from natural gas to LP. The procedure is exactly the same except that
- the gas regulator change direction is the opposite: you'd still be either flipping the same part upside down in the regulator, or turning an adjustment screw or knob but in this case from NG to LP
- the orifice sizes will be different: you still need to use the correct parts from the manufacturer. Shown above, a pair of orifices for a JennAir gas cooktop
The smaller #95 orifice was for LP gas and the larger #122 orifice is for natural gas for this specific appliance. Your appliance will require different parts.
- air shutter or air mix adjustments are required at the burners or controls on some appliances; the combustion air setting will be specified in the manual for your appliance
On 2018-04-14 by stevefarber196151
Need to switch lp conversion back to ng
On 2017-09-01 by Anonymous
Just show the love. Quit the run around. Get so far down. It goes to converting natural gas to lp. I need the opposite.
On 2018-02-11 by (mod) - you cannot use natural gas to feed a stove set up for LP gas without first converting the appliance
Watch out: you CAN NOT safely use the LP-fitted stove with piped in natural gas. Leave gas supply to that appliance OFF until it has been converted back to using natural gas.
Of course a stove that was converted from natural gas to propane can be re-converted back to the original fuel. Needed are several parts including proper gas orifices at burners and either an adjustment/conversion at the appliance regulator or a new regulator.
On 2018-02-11 by laxpuckmom
Please help me somebody. I bought gas stove (Kenmore) 2 years ago when my house was all propane (heat, hot water and cooking).
When delivering the stove, Sears used a conversion kit to hook up to the existing propane line to my new stove.
Now that piped in gas from utility company is on my street and I've hooked up with a new gas furnace, I'm getting mixed responses about converting back to the original gas stove I bought. Anybody know if it can or cannot be done?
On 2017-12-17 by (mod) - do natural gas and lP gas have the same orifice numbers on them?
No, Tim, never for the same appliance. That is if you are switching between LPG and natural gas the new orifices will almost certainly have different numbees as the required orifice size will be different.
On 2017-12-12 by Tim Gaffield
Does the natural gas and lp gas orafises have the same numbers on them
On 2017-12-04 by (mod) - gas ovens or ranges do not convert to "all electric"
Alice,
While some range tops and ovens can be converted between natural gas and LP gas fuel, I don't think we're going to find arrange or oven that converts between gas as a fuel and electricity as a fuel.
On 2017-12-04 by Alice
I have LP gas in stand alone tanks that feed into my range/oven
. If the oven/range is convertible from electric to gas, would my conversion kit be a natural gas conversion kit or a LP gas conversion kit
On 2017-07-10 by Mod - - how much a conversion kit would cost
Sorry Kim
We do not sell anything.
At U.S. prices a typical conversion kit between types of gas fuels costs around $50. U.S.
On 2017-07-10 computers used in gas ranges by Kim - convert a Rina capella 18 plus lpg to natural
I would like to convert a Rina capella 18 plus lpg to natural and would like to know how much a conversion kit would cost
On 2017-04-16 by (mod) - computers used in gas ranges
Chris:
I'm not aware of computers used in gas ranges, but perhaps the technician meant that the igniter module needs replacement.
GAS COOKTOP IGNITER REPAIR has details
You should be able to find the installation/operation for your Whirlpool gas range, and in there find the module part number, and with that, see what you can find for sale online. Some such parts can die suddenly but are, I agree, usually reliable.
On 2017-04-16 by Chris
I have a gas stove. It's a Whirlpool bought new in 2006. The oven has died. The appliance fixer said it needed a new computer.
(He also said that this little computer that is on the back of the stove is cheap to make, but costs about $400 for a new one, installed.
He also said that these new stoves are meant to last about 6 years. Reason: greed.) I've heard that you can have a gas stove like mine changed into an old fashioned gas stove. The kind that doesn't die after 6 years. Is there anyone who does that sort of thing?
On 2017-01-26 by Mod - - we do not sell parts for appliances nor anything else
Sorry Mr. Vallely,
We do not sell anything.
InspectAPedia.com provides building and environmental diagnostic and repair information.
In order to absolutely assure our readers that we write and report without bias we do not sell any products nor do we have any business or financial relationships that could create such conflicts of interest.
On 2017-01-26 by james vallely - I need a conversion kit, can you provide it?
Dear Sir;
Need conversion kit to modify a Rheem natural gas to a LP. Has a Honeywell regulator Q081545109, Model PRO+G29-60WRH70 ID . Any Joy?
On 2016-11-27 by (mod) - How can I find a qualified technician to handle a gas fuel conversion LP to NG or NG to LP?
When we purchased a gas dryer recently the company selling the appliance was happy to send out a technician to convert the appliance from natural gas (as shipped) to LP gas (as needed) but in fact they could not do the job as the dopey vendor didn't realize that one needs to have a conversion kit - different gas orifices are installed.
We ordered the kit online as the cheapskate company selling the expensive appliance did not, as they used-to, include a gas conversion kit.
So order the kit from the manufacturer, then hire a plumber or appliance repair person who's worked on gas appliances to make the conversion. It's not difficult.
DO NOT use a handyman or someone inexpert and unfamiliar with the procedure as the result may be unsafe risking fire or explosion .\
Ask for advice from
- the manufacturer of the appliance
- the local gas company from whom you buy gas
- your building department
On 2016-11-27 by Carla
How can I find a qualified technician to do this? I've tried appliance repair shops, plumbers, propane suppliers, and handymen, and no one has ever done it before.
On 2016-07-26 by Mod - - we do not sell parts for appliances nor anything else
Sorry Mr. Malek,
We do not sell anything.
InspectAPedia.com provides building and environmental diagnostic and repair information.
In order to absolutely assure our readers that we write and report without bias we do not sell any products nor do we have any business or financial relationships that could create such conflicts of interest.
InspectAPedia is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information for the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website.
We very much welcome critique, questions, or content suggestions for our web articles. Website content contributors, even if it's just a small correction, are cited, quoted, and linked-to from the appropriate additional web pages and articles - which benefits us both. Working together and exchanging information makes us better informed than any individual can be working alone.
A brief summary about InspectAPedia.com can be read at https://inspectapedia.com/About_Us.htm
On 2016-07-26 by Anonymous
Dear Sir,
I am MA Malek, Chief Engineer of Nahar Farmers group of Bangladesh.
I want to know that can you make 740m³ per hour fuel gas plant with the pressure of 21psi by using LP gas and chemical ?
If you can then what will the planting cost? I am specially requesting you to inform me in details about the plant.
On 2016-04-14 by (mod) -
Anon:
An overview of the procedure from converting a gas fired appliance between LP and natural gas is given in 5 steps at the start
of GAS APPLIANCE CONVERT LP-to-NATURAL GAS.
Do let me know if any of that is unclear.
Joseph:
Just what you have to change to switch a gas oven back from LP to Nat gas depends on the specific appliance; most likley you'll need to change a gas metering orifice in the appliance and to adjust an air shutter. If you've already got the proper gas regulator settings and pressure that should be it.
You need to
- convert the orifices at the burner(s) for the appliance to the proper size - this is device or appliance-specific so get them from the manufacturer
- convert or adjust the appliance gas regulator to the proper fuel: natural gas or propane; some regulators have a screw to turn, others a part to fip over, others need to be replaced
- change the fuel source and provide proper piping, primary regulator, shutoff valves, appliance connectors if not already installed
See GAS APPLIANCE CONVERT LP-to-NATURAL GAS
On 2016-04-14 by Anonymous - Converting. LP to NAT overview
Converting. LP to NAT overview
On 2016-02-07 by Joseph. birtcil - changed my gas cook stove to lp. Can't remember how I did it.
I changed my gas cook stove to lp. Can't remember how I did it. I got the burners changed back but can't remember how to do the oven. Please help.
On 2015-07-04 by (mod) - conversion kits to swap various appliances between LPG and natural gas
Jenny
There are often conversion kits to swap various appliances between LPG and natural gas.
However you MUST obtain a kit from the specific appliance manufacturer, since they will know the precise orifice dimensions and other flow properties necessary for safe appliance operation.
The gas regulator for the appliance will need changing as well. The appliance manufacturer will include instructions along with a conversion kit, though in some jurisdictions such gas conversions must be done by a licensed professional.
Watch out: making a mistake can kill you, or burn down the house, or blow it up.
On 2015-07-03by Jenny
Is there a conversion kit for a gas heater from propane to natural gas, if there is where would you purchase., can seem to find one Thanks
...
Continue reading at GAS APPLIANCE CONVERT LP-to-NATURAL GAS - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.
Or see these
Recommended Articles
- GAS APPLIANCE CONVERT LP-to-NATURAL GAS
- TOOLS & SUPPLIES for GAS CONVERSION & COOKTOP INSTALLATION
- GAS APPLIANCE CONVERT REGULATOR NATURAL GAS-to-LP from Natural to Propane Gas - separate article
- CONVERT the GAS ORIFICES or spuds from Natural Gas to Propane - separate article
- CONVERT the BURNER VALVES or AIR SHUTTER from Natural Gas to Propane
- GAS FLAME COLOR CHECK
- CONVERT OVEN BURNER & THERMOSTAT from Natural Gas to Propane
- APPLIANCE COMPATABILITY to LPG, PROPANE vs NATURAL GAS
- TROUBLESHOOTING Q&A for Natural Gas to LP or Propane Gas Appliance Conversions
- GAS COOKTOP INSTALLATION
- GAS REGULATORS & APPLIANCE / HEATER CONTROLS
- GAS REGULATOR ADJUSTMENT PROCEDURE
- GAS REGULATORS for LP TANKS
- GAS REGULATOR TEST PROCEDURES
- GAS REGULATORS, TWO STAGE
- GAS PRESSURES LP vs NATURAL GAS
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