Your furnace plays a very important role in your home, and it’s something you need to take care of regularly. After all, your furnace is the hub of your heating and cooling systems, and if it isn’t working properly, it could make your home uncomfortable during very hot or very cold temperatures. While there are plenty of HVAC repair options you can do to maintain your furnace, there will come a time when it needs to be replaced, not just repaired. Check out the following six signs your furnace needs to be replaced, and then be sure to take care…