Horn Igniter

The Forney Horn Igniter is used on tangentially fired boilers for burner ignition and warm up, typically as a Class 2 igniter. Depending on customer needs, Forney offers either a single or dual fuel horn igniter. The single fuel horn igniter fires either oil or gas. The dual fuel horn igniter fires either oil or gas without a change of equipment, allowing for a quick and effortless change over of fuel.

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Both horn igniter assemblies consist of a mounting plate, an oil or gas gun for the single fuel horn igniter or a combination oil and gas gun for the dual fuel horn igniter, a High Energy Spark Igniter (HESI), a combustion air tube, an optional flame detector, and a horn. The major components are fastened to the igniter front plate with easily removable connections to simplify maintenance. The oil and gas connections utilize stainless steel braided hoses and optional quick disconnect couplings.

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The optional flame detector is mounted on a 1” NPT sight tube, which provides an unobstructed view of the flame inside the horn. Since the etector is mounted to the igniter windbox, it does not require cooling air. On retrofit applications, the existing horn (diffuser) may be reused, if it is not damaged or deteriorated. As a result, the installation requires only replacing the front plate and internal hardware, minimizing costs.