How to Install a Natural Gas Shutoff Valve for a Grill – Part 2

By | Last updated on |Deck & Patio|20 Comments

The black iron pipe fittings and natural gas hose quick connect coupling is installed to complete the gas grill hookup. This project is continued from How to Install a Natural Gas Shutoff Valve for a Grill – Part 1.

Install the Natural Gas Quick Connect Coupling

Fast forward several weekends. I’ve almost completed the deck rebuild and stained the deck boards. It’s been a while since we’ve grilled and I’m hungry.

My gas BBQ grill requires a 3/8 inch female flare fitting and hose, hence the 1/2 in x 3/8 in black iron reducing coupling. I purchased a 3/8 inch female flare to 3/8 inch male quick connect gas hose from Amazon.com. The hose kit includes the quick connect coupling socket.

The steps to install the gas grill quick connect coupling are:

  1. Verify the gas shutoff valve is in the Off position (see the following photo).
  2. Remove the 3/8 inch pipe plug.
    Wipe the old sealant off the reducing coupling (I’ve yet to do this in the photo).
  3. Install a 3/8 in x 1-1/2 in black iron pipe nipple.
  4. Screw on the quick connect coupling.
  5. Connect the gas hose.
Remove Black Iron Plug to Install Quick Connect Coupling for Natural Gas Grill

Remove Black Iron Plug to Install Quick Connect Coupling for Natural Gas Grill

The 3/8 inch pipe nipple threads are coated with RectorSeal No. 5 sealant and the nipple threaded into the reducing coupling. No need to tighten it with the wrench at this point:

Black Iron Pipe Nipple installed on Reducing Coupling for Natural Gas Grill

Black Iron Pipe Nipple installed on Reducing Coupling for Natural Gas Grill

The upper threads are sealed. The 3/8 inch quick disconnect coupling socket is ready to install:

Apply RectorSeal No 5 Sealant before Installing Natural Gas Grill Quick Connect Coupling

Apply RectorSeal No 5 Sealant before Installing Natural Gas Grill Quick Connect Coupling

Hold the reducing coupling with the pipe wrench to prevent it from turning, then tighten the quick connect with the adjustable wrench. This will also tighten the pipe nipple:

Install Quick Connect Coupling on Natural Gas Shutoff Valve for Grill

Install Quick Connect Coupling on Natural Gas Shutoff Valve for Grill

The installed gas grill quick connect coupling:

Quick Connect Coupling and Natural Gas Shutoff Valve for Grill

Quick Connect Coupling and Natural Gas Shutoff Valve for Grill

Connect the natural gas grill hose by pushing down on the spring-loaded quick connect sleeve and insert the hose. Release the sleeve and check the hose is held firmly in place:

Insert Natural Gas Grill Hose in Quick Connect Coupling

Insert Natural Gas Grill Hose in Quick Connect Coupling

The finished natural gas grill shutoff valve and quick connect installation:

Natural Gas Shutoff Valve Fittings and Quick Connect for Grill

Natural Gas Shutoff Valve Fittings and Quick Connect for Grill

The gas grill won’t start immediately after opening the shutoff valve because the air in the lines must be purged. My grill fired up after 10 or 15 seconds.

Natural Gas Patio Heater

The benefit of a natural gas quick connect coupling is easily switching between hookup hoses for other natural gas appliances, like a patio heater to stay warm on cool nights:

AZ Patio Heaters - Natural Gas Stainless Steel Patio Heater Fastened to Wood Deck

AZ Patio Heaters – Natural Gas Stainless Steel Patio Heater Fastened to Wood Deck

I bought the natural gas patio heater from Amazon.com because it was reasonably priced and free shipping:


I can switch natural gas supply hoses between the grill and patio heater in seconds:

BBQ Grill and Patio Heater Natural Gas Hoses with Quick Connect Coupling

BBQ Grill and Patio Heater Natural Gas Hoses with Quick Connect Coupling

The patio heater does a good job. The post is 2-1/2 inches diameter and too large to fit through the umbrella opening in my patio table… good to know when shopping for a patio set.

AZ Patio Heaters - Natural Gas Stainless Steel Patio Heater Burner Flame

AZ Patio Heaters – Natural Gas Stainless Steel Patio Heater Burner Flame

At maximum heat it’s quite warm. We had several friends visiting the other night and we were comfortable standing 5 to 8 feet away in 45 degree weather:

AZ Patio Heaters - Natural Gas Stainless Steel Patio Heater - Max Heat

AZ Patio Heaters – Natural Gas Stainless Steel Patio Heater – Max Heat

Start the heater by turning On the natural gas shutoff valve, hold in and turn the control knob to “Pilot”, then press the red Igniter button to light the pilot light. Adjust the control knob to your desired heat setting.

AZ Patio Heaters - Natural Gas Pilot Light for Safer Starts

AZ Patio Heaters – Natural Gas Pilot Light for Safer Starts

The patio heater took about an hour to put together. The owner’s manual says to fill the plastic water tank (located under the metal base) with water for ballast, however there’s no drain cap gasket and it leaked. Better to fill the base with sand or fasten the three (3) base brackets to the deck.

I bought a 12 foot by 3/8 inch natural gas hose for the patio heater. About 7 feet of hose fits inside the heater base and post to reach the burner, so keep this in mind when thinking about where you want to place the heater because you might want a longer hose.

Hope this helps,

Bob Jackson

Copyright © 2018 HandymanHowTo.com   Reproduction strictly prohibited.

20 Comments

  1. Bob Toews June 6, 2015 at 11:50 pm - Reply

    Good article. Important note . . . If you have your gas line and it is facing up, this must be changed immediately. All quick connects must be horizontal or facing down.
    If it is facing up, water can collect in it and possibly freeze (especially in the northern climbs). This could split the quick connect and cause a leak.

    • Bob Jackson June 7, 2015 at 6:20 pm - Reply

      Those are good points. My focus was simply replacing the gas valve and quick connect that was there when I bought the house. The home inspector and building inspector never questioned it and I’ve always used the rubber rain cap or connected the appliance hose to keep dirt & rain out.

      Your comment is timely because I’ve recently had a roof built over the wood deck for a screened porch which required removing the natural gas pipe under the deck. New gas pipe will be installed to relocate the BBQ grill well outside the porch. My plan is to bring the gas pipe up through the wood deck to a Burnaby Gas Plug mounted to a support block against the 4×4 deck rail post. This will look professional, eliminate water intrusion/freeze problems and have better safety features.

      I’ll post an update about the gas plug installation.

      Thanks,
      Bob

    • Bob Jackson December 31, 2015 at 4:05 pm - Reply

      The Burnaby Gas Plug installation project is published!

      https://www.handymanhowto.com/burnaby-natural-gas-plug-overview/

  2. John December 16, 2015 at 7:50 pm - Reply

    One important step that I didn’t see in part one or two is…check for leaks!

  3. Philip Hamm May 2, 2016 at 2:43 pm - Reply

    My plumber wants $259 to do this job. It looks pretty simple to me, I’m handy enough – I’ve never done serious plumbing but I’ve replaced toilet hoses, etc. I’m afraid I’ll blow my house up!

  4. IGnatius T Foobar November 22, 2016 at 6:39 pm - Reply

    Interesting read. I know that if a grill is permanently plumbed to a gas supply, building code requires that the grill must be permanently attached to the deck in order to prevent it from breaking the connection and causing a leak. Does the presence of a quick connect waive this requirement? I guess what I’m really asking is, does the quick connect “break away” if pulled laterally?

    • Bob Jackson November 22, 2016 at 7:45 pm - Reply

      The Fuel Gas Code (FGC) Section 411.1(5) states:

      “Except as required by Section 411.1.1, appliances shall be connected to the piping system by one of the following:

      5. Listed and labeled outdoor appliance connectors complying with ANSI Z21.75/CSA 6.27 and installed in accordance with the manufacturer’s installation instructions.”

      If the portable grill, patio heater (see the picture near the bottom of page), etc. is installed per the manufacturer’s instructions (e.g. flexible hose, quick disconnect) then it meets code.

      Also note that the original gas shutoff valve was installed incorrectly by the previous homeowner… pointing up where it catches rainwater. I later corrected the natural gas hookup with a Burnaby Natural Gas Plug.

  5. Pagodas December 4, 2016 at 1:24 pm - Reply

    Where did you purchase the blue hose with the connector on it? Cost ?

    • Bob Jackson December 4, 2016 at 2:44 pm - Reply

      Disable your ad blocker and you’ll see link to the Mr. Heater gas hose near the beginning of the article.

  6. Mark Nguyen May 18, 2017 at 12:17 am - Reply

    Is there a splitter available to have the heater and grill running concurrently? I have a quick connect for my natural gas line in my patio and wanted to find a splitter that can get gas to my grill, side burner and power burner any suggestions

  7. Bernard May 25, 2017 at 10:17 am - Reply

    I noticed you bought a Mr. Heater 12 foot hose. I have a Charbroil grill and the conversion kit has burner knob plates that come with for swapping out when you convert the grill. I noticed the Mr. Heater does not. Did you need to add those plates or do you know what their purpose is for?

    • Bob Jackson May 25, 2017 at 12:46 pm - Reply

      Propane has over twice the energy per cubic foot than natural gas. The Char-Broil propane to natural gas conversion instructions (caution – may vary by grill model #) call for removing the gas orifice and install new control knob bezels for natural gas.

      The gas orifice limits the flow volume to match the type of fuel and grill BTU requirements. Propane orifices have smaller hole compared to natural gas because less fuel on a unit volume basis is needed to heat the grill. Char-Broil says to remove the propane orifice and install the natural gas orifice which has a large hole.

      The new orifice changes the gas control knob calibration markings, hence the new set of bezels for natural gas.

  8. James August 13, 2017 at 3:23 pm - Reply

    Why not install the quick connect coupling right to the 1/2″ nipple? What is the point of the 1/2″ x 3/8″ reducing coupling then going back to 1/2″?

  9. Arvind Pradhan May 13, 2018 at 10:30 pm - Reply

    I have exactly same heater running on ng but it is never simple to connect the quick connect. The female quick connect just never moves in. It is just too hard and I do not know what is the solution. I have tried W-40, lithium grease, graphite but the female 3/8 inch just doe not push in.

    • Bob Jackson May 14, 2018 at 8:36 am - Reply

      The ball bearings are probably corroded. The solution is to shutoff the gas supply and replace the quick connect fitting.

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