Dont get discouraged. These types of boilers are awesome once you get the bugs out. You never answered the question - where did you measure draft - above or below inducer? I just installed a draft inducer. My boiler worked great before even at .04 draft. Now I set it at .06 with the inducer and the boiler performs even better! Try running the inducer at full speed. If you dont have a draft gauge - watch the pipe temps (supposed to be internal pipe temp readings - not a magnet thermometer). Stack temps should be 250* - 350* if the unit is not in idle mode... When I had a low draft my pipe readings where around 200* Eliminate one problem at a time. It does sound like a draft issue at this point... Keep us posted.