Without this important yearly service your heating system can wear itself out quickly. Overall this is the most important thing you can do to maintain your heating system. Over time the natural sludge and sediment that is in all home heating oil can deposit dangerous soot throughout your heating system and cause it to run inefficiently. In addition critical components may be on the verge of wearing out.
A trained professional can spot problems before they occur thus preventing a breakdown during the critical cold winter months. This is not to say that your system won’t develop a few ailments now and then, but you can greatly reduce the chances of the following potential problems if you perform this important service once a year.