About the Honeywell SV9520H8513 NPT Direct Hot Surface Igniter
Honeywell SV9520H8513 1/2"x1/2" NPT Direct Hot Surface Igniter. The SV9520 SmartValve System Controls, combine gas flow control and electronic direct main burner ignition sequencing functions into a single unit and provide all gas ignition safety functions by controlling gas flow, ignition source and air blower.