I recently purchased a house with a Buderus Logano G115 oil-fired
boiler that does not seem to be venting correctly.. The boiler room is
in the basement and is approximately 10'X10'. The boiler will shut off
after running awhile with a red light on. The boiler room will have
poor air quality at this point.
I think that the boiler exhaust has been installed incorrectly. To
start with, the 5" exhaust on the rear of the unit has been reduced to
4". Is this boiler supposed to be vented excusively with 5" pipe? This
4" vent pipe runs up the wall about 5' where it connects to a 8"
cylinder which goes through a concrete wall at 2 feet above ground
level. On the exterior wall there is a larger version of type of vent
that I have seen used for dryers which points downward at about a 45
degree angle. Does this sound like a correct installation? If not, can
anyone offer any input of the correct exhaust venting of this unit? I
tried to pull up the installation manual but it is not available
Thanks for any help.