i hope i am posting to the right place. i purchased a gw 100 don't seem to have enough draw have 30" horizontal run 8-6 reducer single wall pipe 24" pipe to 6" elbow then vertical run 5' to draft inducer then 12" of double wall metal bestos pipe with cap. gw would like for me to believe the boiler is not drawing correctly secondary to difference in temps of single wall pipe. i wrapped single wall pipe with glass wool. boiler temp usually runs around 140 deg.wood just smolders uless i'm feeding it split wood. yes i am burning dry wood. have tried all kinds. don't buy the temp differences in single wall pipe. today it was 50 deg. in ky. can't get stove above 140 deg. unless start burning split wood. i sure would like some help gw is basically worthless for customer service. even thought of talking to atty general but would prob laugh me off. also can't find a manometer no one in my area even know what one is. any help would be greatly appreciated. spent arount 16,000 would love for this thing tow work correctly.