There are a lot of commonly accepted signs and portents of doom. Crops failing, walls oozing green slime, your favorite restaurant closing down, etc. etc. What we want to focus on in this blog, though, is more in the realm of furnace-related doom.
If your furnace is nearing a catastrophic conclusion to its years of service, it helps to be able to recognize it and take appropriate action. That might mean calling for repairs, or it might mean sending the unfortunate system to its final resting place and installing a new one. Let’s go over a few of the more ominous signs of impending furnace doom, and what actions you should take to deal with these.