About two years ago, I realized my oil furnace needed to be upgraded. It was no longer capable of handling the extreme Winter weather in my area. I observed much longer run times plus much higher yearly energy bills. The house often felt cold, no matter how high I set the control unit. The oil furnace had also begun making some weird sounds, spread quite a bit of dust from the vents, plus smelled rather musty whenever it operated. My family often complained of headaches while the two of us were in the winter, plus I blamed the oil furnace. Rather than wait for the heating program to fail while the two of us were in the middle of the winter, I decided to take proactive measures. I started researching what to look for in a new oil furnace, with the program to handle the installation process over the summer. I discovered that the weird manufacturers plus models offer basically the same features. The AFUE ratings vary, along with price, plus most top-of-the-line oil furnaces are equipped with variable-speed operation, stainless steel heat exchangers plus zone control capability. The Energy Star rated oil furnaces tend to be more costly however save money on heating bills every week. From what I read, the model of oil furnace is not as important as proper sizing plus installation. Some Heating plus Air Conditioning corporations tend to oversize the oil furnace because it’s easier than making accurate heating load calculations. Unfortunately, larger oil furnaces cost more to purchase plus won’t provide superior comfort. The program will heat up the space too suddenly plus never achieve maximum efficiency levels. A oil furnace that is too small will run continuously plus never manage to sustain perfect comfort on super chilly nights. Whether the oil furnace is over- or undersized, it will experience excessive wear plus tear plus not last as long.