If you have one of those old gas furnaces in your home, upkeep on it can be quite tricky. Having your furnace up to date gets a bit complex in today’s world with all of the upgrades there now are in heating and cooling technology. The major thing that will help up keep your furnace is to have your furnace cleaned. Cleaning your furnace can help it function a whole lot better in the long run after your furnace has been running for a long time. Changing the furnace filter is a big part of keeping your furnace clean so it will not break down on you in the middle of a harsh cold and freezing winter. I have one of those old oil furnaces myself, and this is what I do all the time to keep it running. I hardly have to have any kind of emergency heating repair done on my old furnace from the local heating and air conditioning company. The certified heating and air conditioning specialists that work at the local heating and air conditioning company are well educated on the old furnaces, even if they are young and new heating and air conditioning workers or specialists. They will even tell you, that up keep on your old furnace is even a slight bit more important than the upkeep on a modern day central heating and air conditioning system unit. I personally enjoy and really love my old oil furnace, and I probably will never ever get rid of it as long as I live.