About several years ago, I realized my gas furnace needed to be replaced. It was no longer capable of handling the extreme Winter weather in my area. I noticed much longer run times and much higher weekly utility bills. The apartment often felt chilly, no matter how high I set the thermostat. The gas furnace had also begun making some strange sounds, spread quite a bit of dust from the vents, and stinked rather musty whenever it operated. My family often complained of headaches while in the winter, and I blamed the gas furnace. Rather than wait for the heating plan to fail while in the middle of the winter, I decided to take proactive measures. I started researching what to look for in a new gas furnace, with the plan to handle the installation process over the summer. I discovered that the different manufacturers and models offer basically the same features. The AFUE ratings vary, along with price, and most top-of-the-line gas gas furnaces are equipped with variable-speed operation, stainless steel heat exchangers and zone control capability. The Energy Star rated gas gas furnaces tend to be more high-priced however save currency on heating bills every month. From what I read, the model of gas furnace is not as important as common sizing and installation. Some Heating and Air Conditioning businesses tend to oversize the gas furnace because it’s easier than making accurate heating load calculations. Unfortunately, greater gas gas furnaces cost more to purchase and won’t provide superior comfort. The plan will heat up the space too abruptly and never achieve maximum efficiency levels. A gas furnace that is too small will run continuously and never manage to sustain perfect comfort on super frigid afternoons. Whether the gas furnace is over- or undersized, it will experience excessive wear and tear and not last as long.