Formulated as a 5-minute time delay relay

Engineered with a 3-inch insertion length and a board-mount configuration

extending the service life of the draft assembly

satisfying code requirements for venting without a dedicated pipe to the atmosphere

Built with a durable metal flange and standard 1/4 inch terminals

Lennox 20J90 Ignitor Formulated as a 5-minute timeAs a seasoned technician, you know that a reliable ignition sequence is the backbone of any call back free furnace repair. The Lennox 20J90 Electrode Spark Ignitor is a genuine OEM replacement designed specifically for high performance Lennox unit heaters and furnaces. This L style spark electrode features a precision engineered 2. 61 inch electrode length and a total ignitor length of 2 7 8 inches, ensuring the arc reaches the gas stream at the exact