DURAFire® can be used as a Class 1, Class 2, or Class 3 igniter, depending on the burner capacity. The DURAFire® is easily installed as a retrofit into most burner types based on its size, capacity, and reliable operation.
The DURAFire® oil igniter consists of five major components: a guide tube, an atomizer/head assembly, an oil/air mixture transport tube, a spark rod, and a stainless steel diffuser for pilot stabilization. The guide tube houses the internals, which are attached to the head and easily removed from the guide tube for maintenance purposes by releasing a “V” band retainer, requiring no tools. Cooling/combustion airflow is directed down the guide tube to support and maintain the primary combustion zone during operation. This controlled mixture of fuel and air in the primary combustion zone results in a highly reliable, stable igniter flame. While out of service, airflow cools the igniter and prevents debris from entering the end of the guide tube.
The DURAFire® oil igniter comes standard with Forney’s High Energy Spark Igniter (HESI) as the spark source. The HESI produces a powerful 12-joule spark approximately three times per second at the primary combustion zone. The HESI spark tip is a nonfouling, surface-gap tip which is replaceable as a unit by a threaded connection. The remaining HESI components consist of a positioning rod, cable and power unit. Optional equipment for the DURAFire® includes mounting hardware, retraction assembly, hoses and flame detector.
DuraFire Technical Bulletin
Publication Number 404006-04
Publication Number 372000-47