'll go with $5 box of damprid like I did last year plus spraying the burnpot and all the walls with Pam cooking spray..
worked last year to combat rust so it will work this year..
Did the same with our P43 last season, worked great. Right now just running it at night the few times a week when it has been chilly enough. Last year I had it shut down for the season April 10th and used the electric baseboard heat for chilly nights. But with what electric rates jumped to this year, it's cheaper to run the P43 for a few hrs. $1200 for 4 tons of pellets and keeping the house at 70 all winter vs the $3000-$4000 using the electric heat and the house at 65 would have cost us this past winter, wife is soooo glad we made the buy on the P43 in 2013.
Sam