Englander 28-3500 Advice

[lunk30]

Hi I'm a second year burner..... Last year i guess was an experimental year.... Sometimes i got it pumping some pretty good heat through my existing ductwork and other times you could barely tell i had it on..... I know one of my problems was probably the most common newbie mistake seasoned wood.... but i must of had some decent stuff because sometimes it worked like a charm.... im pretty sure i have some decent wood some left from last year and other stuff ive tested with my moisture meter all 20% or under for this year... so any advice on getting good burns would be appreciated.... thank you