If your Rheem furnace isn't igniting properly, these direct spark igniters could be the simple fix you need! This 2-pack of 62-24164-01 replacement igniters is compatible with Rheem and similar furnace models, featuring a 35-inch high-temperature cable that's built to handle the heat. The spark gap is set at 1/8 inch, with specific measurements including grounding electrode offset of 13/16 inch and spark electrode offset of 1-3/16 inches. Installation is surprisingly straightforward - it's basically a 'one screw off, one screw on' process that most DIYers can handle in about 5 minutes. Of course, always remember to shut off power to your furnace before starting any work! These upgraded igniters play the crucial role of creating the spark that lights your furnace burner, so when they fail, you'll typically notice your furnace trying to start but not actually igniting, or you might see error codes related to ignition. The quality construction uses materials designed to withstand the extreme temperatures inside your furnace, and having two in the pack means you'll have a spare for future needs or if you have multiple units. Whether you're dealing with a furnace that won't start, intermittent ignition issues, or just want to be prepared for future maintenance, these direct spark igniters are an affordable solution that can save you from expensive service calls. The precise compatibility and easy installation make them a smart choice for any homeowner comfortable with basic DIY furnace maintenance.