DIY Network

How to Fix a Water Heater Gas Leak

Flexible brass gas lines on water heaters have a high failure rate and immediate correction is a crucial safety measure. Here are a few simple steps to prevent a potential hazard.

More in Remodeling

  • Time

    30 Minutes

  • Price Range

    $1 - $50

  • Difficulty

    Easy to Moderate


Step 1: Replace the Copper Pipe

Turn off the gas. Remove the threaded pipe leading from the temperature pressure relief (TPR) valve and replace it with a new copper pipe. This new pipe should only be threaded at one end to avoid the misconception of trying to cap off the end.

Step 2: Repalce the Gas Line

Remove the flexible gas line. Replace it with the new line that has a protective polymer coating on it. The new gas line should terminate no further than 2' off the ground, and no closer than 6" to the ground. Once all the new connections are snug, turn the gas back on.