I also set my flame to -5 because I think I saw one of your previous posts. I am seeing the same thing, pretty high flame and the significant difference in heat output.[/quote] I've always run in AUTO on hardwood settings but in sunflower mode I now run in MAN, heat level 1-Low. In AUTO the heat difference keeps shutting the stove of on the thermostat. And by setting the temp higher the feed rate/heat level goes up - which you don't need on sunflower mode. But in MAN on 1-low I set the temp to 75/76f and it ticks over nice keeping the whole house warm.