My Utica Boiler has some tubing coming from it. (It's been in place about 3 years and working fine.) But, we've noticed some small bumps/bubbles on some of the tubing and unsure whats causing it or if its safe..... ?? Anyone know about this thing?
if you are refering to the metal vent pipe that carries the exhaust fumes outside or to the chimney,,it sounds like it is starting to rust out from the inside...is the pipe new with the boiler or re-used from the old boiler?...does the pipe increase in size much from the size it is where it connects to the boiler?...newer boilers are higher efficient than the ones they replace,,usually around 82% or so...the exhaust gases are cooler exiting the boiler than previously,and therefore closer to their dewpoint,,so single wall vent pipe doesnt last as long,,esp if for some reason the boiler cycles are short,,not alowing the vent pipe to heat up and evaporate the initial condensation... bably best to have an hvac check it and advise you if there is a problem........dan
