My Grandma’s heated gas furnace has been around for the longest time I can remember.
I found it now working over 30 years ago.
Unfortunately, the gas furnace in our own apartment seems to be failing on me, considering that the exchanger broke, yet it is relatively new, but what could be the reason lurking beyond this, yet I expected it to serve myself and others as long as our Grandma’s did? A bit of research on this subject leads myself and others to some pretty cool findings. It turns out that the heat exchanger may have broken for more than 2 reasons, however one of the main issues might have been dirty filters. I am guilty of leaving our gas furnace filters unchanged for years because I did not remember replacing them at any moment in time. It is possible that they jammed over time and, as such, hindered free airflow, and consequently, this may have triggered overheating, which then caused the exchanger to crack! My HVAC specialist confirmed this and suggested that I should replace the filters every single month to be on the safe side. Other reasons that may also trigger exchanger issues include an oversized gas furnace, and this means that the gas furnace is likely to heat the condo too quickly, starting the thermostat, which then shuts down. Most gas furnace cycles caused by immense or insufficient gas furnace sizes may lead to expansion and contraction of the heat exchanger, which stresses the exchanger, causing it to crack. The heat exchanger needs to be treated carefully, considering its importance to the heating process. Without it, the gas furnace is practically useless. Talk to the gas furnace repair experts if the exchanger cracks. They are likely to propose to you for better management and care.