This is a demo using the control board from my Harman Invincible insert that heats the shop office. Maybe not the best example as the stove has been modified to use this board, but you'll get the idea. Note: to those of you with an Accentra freestanding or XXV, your board is going to be upside-down but the controls will be the same. Lastly, there are two other things on the board which are not seen, one is the white insert rotary dial to trim the draft fan and the other is a computer 6-pin diagnostic port for the Harman diagnostic tool...both are there but are hidden behind the faceplate. The older control boards had fewer options back in the day, such are the model years for the Invincible; all pre-auto ignition. Enjoy!