Gas appliance flex connector on an inspection report

Is it a problem?

Whether a gas appliance flex connector is a problem depends on which one you have. An old uncoated brass connector can come apart and leak gas, and the Consumer Product Safety Commission (CPSC) says any uncoated brass connector "should be replaced immediately". A current listed connector, installed to code, is the normal way to hook up a gas range or dryer. Have a licensed plumber identify and price every flagged connector before your deadline, then ask the seller to replace the bad ones.

Key takeaways

• Don't pull the appliance out to look. Moving it can make an old connector fail, so let the plumber check it.
• The residential code's fuel gas chapter, shown on UpCodes in its Texas edition, allows one connector per appliance, no longer than 6 feet, with a shutoff valve ahead of it. Check your local code.
• An appliance more than 20 years old has a good chance of an uncoated brass connector, per Virginia Natural Gas.

How much does it cost to replace a gas flex connector?

Fixr's national gas line cost guide prices the pieces as part of a new gas line job, not a connector swap on its own. Treat its figures as a rough guide until your plumber bids. The work is shutting off the gas, adding the connector, and testing for leaks.

• Appliance hookups: $220 to $350 for three to four appliances, installed.
• Shutoff valves: $210 to $500 for three to four appliances, including the plumber's safety check.

Kept prices every line of an inspection report for $79, usually under 4 hours, and marks the ones that need a professional quote.

If your plumber bills by the hour instead, Fixr puts plumbers at $75 to $130 an hour.

Say the report flags uncoated brass at the range, the dryer and the water heater, and none has a shutoff valve. Hookups at $220 to $350 plus valves at $210 to $500 come to $430 to $850. If your plumber recommends rigid pipe at the water heater or furnace instead, that's a pipe run, not a connector swap. Get it priced as a separate line on the written bid.

What is a gas appliance flex connector?

A gas flex connector is the corrugated metal tube between your gas pipe and the appliance, like a cord between an appliance and an outlet. Most dryers, ranges, ovens and cooktops use one. Virginia Natural Gas, a gas utility, recommends solid piping for the water heater and furnace instead.

The utility lists three acceptable types: plastic-coated brass, uncoated stainless steel, and plastic-coated stainless steel in gray or yellow. Uncoated brass is the one it calls dangerous. A connector is also not gas piping. Two joined together, or one that runs into a wall, floor or ceiling, breaks the code limits below. Don't confuse it with corrugated stainless steel tubing (CSST), which looks similar but is gas piping, not a connector.

How serious is an old brass gas connector?

CPSC treats old brass connectors as serious: "Some older brass connectors have come apart, causing fires and explosions resulting in deaths and injuries." The flaw is in how the tubing was joined to the end pieces. In CPSC's words, "Over time, the end pieces can separate from the tubing, and cause a serious gas leak, explosion, or fire."

Not every uncoated brass connector has the flaw, but CPSC says "it is very difficult to tell which ones do." That's why CPSC's advice covers all of them. Virginia Natural Gas says an appliance more than 20 years old has a good chance of one.

CPSC also warns against moving the appliance to check the connector, since moving it "even slightly" can cause complete failure of an old one. It adds that connectors "should always be replaced whenever the appliance is replaced or moved from its location," so a connector carried over from an old appliance needs replacing too.

If you smell gas at the house, CPSC's order is: leave immediately, don't use your phone or switch anything on, and call the gas supplier or 911 from a neighbor's house. After that, a qualified professional checks the connector.

Is a flexible gas line legal?

Whether a flexible gas line is legal depends on the connector and on the code your city or county has adopted. The residential code's fuel gas chapter, shown on UpCodes in its Texas edition (Section G2422), allows connectors listed to the ANSI Z21.24 standard, "located entirely in the same room as the appliance." It also sets these limits:

• No longer than 6 feet, and only one connector per appliance.
• Not concealed in, or run through, walls, floors, ceilings or appliance housings (with narrow exceptions).
• A shutoff valve installed ahead of the connector.
• Appliances on casters, or moved for cleaning, need a connector listed to ANSI Z21.69, or rigid metal pipe.

The local building department or a licensed plumber answers whether the connector at your address complies. A home inspector in Minnesota, Structure Tech, notes that a compliant connector says ANSI Z21.24 on the nut or a ring. Let the plumber read it.

Who do I call before my deadline?

Call a licensed plumber or a qualified HVAC contractor. Virginia Natural Gas says only a qualified HVAC contractor should inspect and install connectors, and Fixr notes that trained plumbers do gas work inside the house. Ask for a written bid that names each appliance, the connector type found, and whether a shutoff valve is missing. How to get repair estimates during the inspection period covers getting that visit booked fast.

What do I ask the seller for?

Ask the seller for replacement by a licensed plumber: a new listed connector at each flagged appliance, a shutoff valve wherever one is missing, and the paid invoice before closing. If you'd rather hire your own plumber, ask for a credit equal to the plumber's written bid.

What to ask for after a home inspection shows how this line fits your list. The buyer repair request letter template gives you the wording. Your contract sets the exact dates and terms, so confirm them with your agent.

What if the seller says no?

If the seller says no, the plumber's bid tells you what the fix costs you after closing. Put that figure next to the rest of your list and decide whether the deal still works. Either way, don't move in with an uncoated brass connector in place. When to walk away after a home inspection walks through that call.

Can I use a flexible gas line for a stove?

Yes, a listed connector installed within the code limits above is the usual hookup for a gas stove. If the range sits on casters or gets pulled out to clean, the code calls for an ANSI Z21.69 connector or rigid metal pipe.

Can I replace a gas flex connector myself?

No, don't replace a gas connector yourself. CPSC says "Only a qualified professional should check your connector and replace it if needed." Hardware stores sell connectors, but Virginia Natural Gas says a qualified contractor should always install them.

What else in my plumbing needs a price?

Gas connectors are one plumbing line that needs a price. The plumbing findings hub covers the pipe, drain and water heater findings on the same report.

If the connector is one line on a long report, upload your inspection report to Kept so you know what every other line costs before you answer the seller.

Sources

• U.S. Consumer Product Safety Commission, "Certain Older Gas Connectors May Be Dangerous"
• Virginia Natural Gas, "Appliance Connectors"
• UpCodes, "Section G2422 (411) Appliance Connections"
• Structure Tech Home Inspections, "Gas Appliance Connectors"
• Fixr, "Gas Line Installation Cost"