I have a co2 detector about twenty feet from the boiler in my kitchen. The uni boiler is not in my basement. It it's technically under my bathroom and I need to go outside to access it.
I have wondered whether I am sending too much heat up the chimney. I have one of those barometric dampers, but God knows if it is set correctly. The stack pipe coming out of the boiler gets pretty hot, but the section after the barometric damper is always cool to the touch. I wonder though because I tend to go through a ton of coal every six weeks on average, sometimes a month if it really cold. I don't know if that is because i have no insulation, whether it is Casey coal, or both.
I used to pay almost $400/month with oil at much lower temps, so I am happy with coal anyway
Kevin,I did clean and oil the fan and unclogged and my grates.