Englander 25pdvc heat modes

[Toycruiser84]

I hear people talking about heat modes c and d. How do you change these settings and what is the difference between the two?

 

[MCPO]

D is the recommended factory setting. C mode will deliver more pellets to the pot resulting in more heat but a dirtier burn since the air to fuel ratio is already maxed out in the upper end settings of D mode. Plus you risk it shutting down on overfire .
I tried C mode for a while and decided to go back to D mode as the stove is designed for. The 25 PDVC is a great little stove but not made to be pushed to heat more than it`s designed for.
Maybe the best advice on this subject is "If you need more heat buy a bigger stove".