Owners of the E-Classic Central Boilers (ECL2300, ECL2400,ECL1450,ECL1400):  

E-Classic MotorThe fan that runs these units has two oil holes (see picture on right).  Oil these every 3 to 4 months with a light oil like 3&1 oil and your fan will last a lot longer.  This also applies to the suspended heater motors for those of you that are using them in your shops and garages.  Just add three or four drops in each hole and it will help the fan a lot -- and your pocket book!