At the end of last years heating season, did your Furnace seem to run longer and not heat as well as you thought it should? Having your Furnace cleaned and serviced will not only benefit you, but it will increase the life of your system.
1) Dirty burners can cause incomplete combustion, which results in sooting of your furnace and lower your efficiency of your furnace.
2) Dirty blowers unchecked, can cause your furnace to overheat and lower the efficiency of your unit.
3) Improper gas pressure can cause improper combustion, which lowers your furnace's efficiency.