Nothing ruins a cookout faster than running out of fuel. I hated that exact problem for years. Finally, I decided to convert my propane grill to natural gas.
It sounded scary at first. Gas lines scare most of us. But then I learned how it works. I found out it is a simple weekend project. Are you tired of swapping heavy tanks? Here is how this process works in the real world.
Why I Finally Ditched the Propane Tank
My breaking point was a summer cookout with friends. I had a grill full of costly steaks. Then, the flames sputtered and died.
I had to leave my guests. I drove to the store to swap the tank. It ruined the whole night. That day, I looked into hooking my grill straight to my house gas line.
The perks became clear right away. Natural gas is very cheap. With a natural gas hookup, you no longer have to buy small propane tanks. Instead, you get a continuous fuel supply while freeing up valuable space on your patio. That big metal tank is gone for good.
The Hard Truth: Can Your Grill Be Converted?
Not every grill can make this switch. You must know what you have before you buy parts.
Most cheap grills run only on propane. They lack the inside setup to handle a new gas type. Check your manual first.
The Dual-Fuel Rule
The maker must list your grill as “dual-fuel.” This means the inside valves can handle both fuel types safely.
If your grill is not dual-fuel, do not hack it. Changing a strict propane grill is not safe. It will void your warranty right away. A neighbor tried to force a change on a cheap grill. It caused a huge grease fire.
Why You Cannot Just Swap the Hose
Many folks think a change just means a new hose. This is a huge mistake.
Propane and natural gas burn in different ways. Propane is highly pressed and burns very hot. Natural gas flows at a much lower pressure. Because of this, the hardware inside your grill must change.
Understanding the Inside Changes
To make this work, you must swap the tiny brass parts inside the grill. We call these parts orifices.
Natural gas runs at a lower pressure. So, the holes in the new parts are larger. They let more gas flow through to make a good flame. If you hook a house line to propane parts, you will barely get a flame.
How to Convert Propane Grill to Natural Gas
First, check if your grill is dual-fuel. Then, buy the official kit for your exact model. Do not buy a generic kit online.
The kit comes with a new hose and a new valve. It also has a special tool and the new brass parts. Take your time. Clear off your table. Keep track of all the tiny screws.
Removing the Old Hardware
You need to take out the grates, heat tents, and burners. This is the hardest part if your grill is dirty.
Take photos with your phone before you unplug wires. I learned this the hard way. Photos make putting things back together much easier. Pull the burners out with care to show the valves below.
Swapping the Brass Parts
Take the small tool from your kit. Unscrew the old propane parts. They are tiny brass nubs at the end of each valve.
Screw the new natural gas parts in their place. Do not twist them too hard. If you strip the threads, you must buy a whole new pipe piece. Hand-tighten them first. Then, give a gentle turn with the tool.
Changing the Gas Hose
Go to the side of the grill. Take off the old hose that attached to your tank.
Attach the new hose from your kit. This hose has a quick plug. It lets you unplug the grill from the wall line in winter. Make sure every joint is tight using a wrench.
The Mistakes I Made Along the Way
My biggest mistake was assuming my house line was ready. I bought the kit. I did the work on the grill. Then I saw I had nowhere to plug it in.
You need a pro plumber to run a gas line to your deck. Do not do the house plumbing yourself. I paid a pro to run a short pipe from my basement. It cost some money, but it gave me peace of mind.
Another mistake was losing a small pin. It held the burners in place. I dropped it in the grass and spent an hour looking for it. Keep a magnetic bowl handy for small parts.
The Safety Check You Cannot Skip
Before you light the grill, you must test your work. A gas leak is silent and not safe.
Mix a few drops of dish soap into a spray bottle filled with water. Turn on the gas from the house. Do not light the grill. Spray the soapy water on every joint you touched.
If you see bubbles forming, you have a leak. Turn off the gas right away. Tighten that joint. If you see no bubbles, you are good to go. I check my joints with soap every spring to be safe.
Common Questions About Gas Grill Conversions
Will a natural gas grill get as hot as propane?
Yes, it gets just as hot. The larger holes in your new parts let enough gas through to match the heat well.
Can I convert it back to propane later?
Yes, you can easily switch it back. Just keep your old parts and the old hose in a safe place.
Do I need a plumber for the whole job?
No. You only need a plumber to install the gas line on your house. You can do the actual grill work yourself in an hour.
Is natural gas cheaper than propane?
Yes, it is much cheaper to use over time. You stop paying the high fees for those heavy tank trades.
Final Thoughts
Moving my grill to natural gas was one of my best choices. The cost of the plumber and the kit paid for itself fast.
If you want to do this, check your grill model first. Buy the right kit. Take your time with the tiny parts. Always do the soap test. You will love never running to the store for fuel again.
