Lochinvar Burner This is a click-to-call button

This is a click-to-call button which will open your smartphone's keypad

For AO Smith

please use our Part Inquiry Form and we will help you determine the correct part for your application

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Smith Ignition Control Board for BTR-500

Lochinvar Burner This is a click-to-call buttonNew #: 100135291 Old #: 100135230 Not Sure What Part You Need? For AO Smith, State, or Lochinvar equipment, if you do not have, or do not know what part number you need, please use our Part Inquiry Form and we will help you determine the correct part for your application. GO TO PART INQUIRY FORM The Part Inquiry form will open in a new browser tab which makes it super easy to copy details of the part you are viewing on this page onto the inquiry form!