In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Two years ago I replaced a 38 year old EFM PK500 with a New Yorker HGS oil burner. There is a difference of 200*F net stack temperature.
I achieved a -.02" draft over the fire but never could get the stack draft any better than -.02". Should be double, at least -.04".
This past year when I cleaned the boiler it was unusually dirty and I can't seem to tweak it anymore.
So now I'm looking into chimney liners. The boiler calls for 6". The chimney is 8" x 25'. I would like to use rigid s.s. pipe as it is a straight run. But I'm getting conflicting stories on which to use. 316L, 316Ti or AL29-4C.
I live in Pennsylvania. The eff. is around 86%.