What should I do to make sure an older boiler is venting properly when I seal up the basement?
I am sealing up the basement of a 100-year old multi-family with a 40+ year-old steam boiler. Prior to this work there was a lot of airflow intrusion which is now being reduced. How do I make sure that the boiler is venting properly up the chimney and there are no internal leaks? Is there anything I can do to introduce heat savings on the venting end of the cycle without changing out the boiler?
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