There is a good chance that your furnace will begin to wear down over time and need replacement if your home is over 30 years old. Older furnaces are made up of parts that need to be replaced periodically! Here are a few signs that your oil furnace may need to be replaced! If you are constantly having to adjust your thermostat, it may be time to replace your unit. If you find yourself having to adjust the thermostat frequently because the air in your home won’t remain at a constant temperature, you might need to replace a part or all of your oil furnace. An efficient HVAC system should heat your home to the desired temperature, and be able to maintain that temperature. Another sign your home furnace may need to be replaced is if you experience cold or hot spots in your house. If you walk from one area of your home to another, and you feel a difference in temperature, then your furnace is not circulating the air in your home efficiently. In this case, it would need to be replaced. An HVAC system that works properly should be able to maintain your set temperature throughout the entire home. You should not experience swings in temperature from room to room, unless you have a smart control device with zone control. If you experience uneven hot and cold temperatures in your home, you may have leaks in your air duct. Over time, air ducts will expand and contract as the metal heats and cools, and eventually, will need to be replaced. Regular inspection and maintenance of your HVAC system is the best way to make sure that it is working efficiently.