All boilers should be thoroughly cleaned and have your burners overhauled yearly. It is not uncommon for soot to develop on the inside of your boiler over the course of the year and YES, this can happen to boilers that run on both oil and gas.
This soot affects the heat transfer across the tubes of the boiler and lowers your efficiency, resulting in higher fuel consumption and ultimately higher fuel costs.
Make sure to schedule your Boiler Maintenance at least once a year. In addition to this, all boilers over 2.8MBTU require yearly Efficiency Testing.
Call us today to have one of our specialists tune your boiler for optimal performance.