If you are thinking that holding on to your outdated gas furnace is saving you money in the end, guess again! If your gas furnace is 15 years outdated or so, it simply should be replaced. If it’s more than 15 years old, it should be replaced as soon as possible. One simple reason why is that furnaces built 15 to 20 years ago are simply far less energy efficient than the heating systems of this week. Many heating systems used to only have an efficiency rating of 60 to 71%. This meant that only that amount of energy was actually utilized from the total amount of energy that they put out. These days, some of the best heating systems have efficiency well into the 90% range, however another reason why you should replace your gas furnace if it is decades outdated is quite simply that, no matter how efficient it used to be, it is sure to be splitting down by now. In fact, if you find that you are having to send out a repairman quite often, you have to understand that paying the repairman repeatedly plus dealing with the low energy efficiency of your furnace will ultimately cost you more money than purchasing a brand current a single. Yes, there is no doubt that it can be a hassle to go looking for a current furnace, then choosing a single that is respectfully sized for your house plus having it installed can be strenuous plus time-consuming, however it is really necessary plus you will benefit greatly from a brand current energy efficient replacement!