5 out of 5Hardrequires a professional, licensed gas fitter
$800 and up, depending on complexity of the installation
2 to 4 hours
In this video, This Old House plumbing and heating expert Richard Trethewey installs a natural gas line for a barbecue grill.
Steps for Installing a Gas Grill
- Check to confirm that the home’s natural gas system has enough capacity to support a barbecue grill.
- Use a pipe wrench to turn off the gas at the gas meter.
- Tap into the existing gas line and run a new line out to the gas grill location.
- Apply pipe joint compound to each threaded connection and tighten with a pipe wrench.
- Suspend the new line from the floor joists with galvanized-steel pipe hangers.
- Install a new gas shutoff valve into the new gas line.
- Drill a ¾-inch-diameter hole through the house wall.
- Continue the new gas line from the basement through the hole to the outside.
- Install a shutoff valve to the pipe just outside the house.
- Next, pressure-test the new gas line to ensure there are no leaks.
- Spray liquid soap onto the threaded connections and check for leaks.
- After about 40 minutes, check the pressure gauge to confirm the pressure hasn’t dropped. Remove the pressure gauge from the gas pipe.
- Install a quick-connect hose fitting onto the end of the gas pipe.
- Mask off the house around the new gas pipe with cardboard or newspaper, then apply rust-resistant spray paint to the new piping.
- Connect a new flexible quick-connect gas hose to the rear of the gas grill.
- If necessary, install an adapter to convert the grill from propane to natural gas.
- Snap the end of the grill’s gas hose onto the quick-connect fitting on the new gas line.
- Turn on the gas at the meter.