First and most importantly: if you notice water pooling at the bottom of the furnace, you should not under any circumstances think it is normal. If you see water near or coming out of your furnace, then you definitely have a problem. How big of a problem? That depends on the root cause, which can be easy to fix or a costly, difficult repair.
Now, let’s get into a few possible causes of water pooling near your furnace.
Probably the least upsetting cause of water near your furnace is plain and simple condensation. A furnace that is properly assembled and fitted should not have any condensation leaks. This can happen if your flue pipe is improperly fitted, you’ll likely get a condensation issue.
2. Drain Clog
A clogged drain line can also result in water pooling near the bottom of the furnace. If you see a big puddle in the vicinity, turn off the furnace and inspect your drain line to make sure water can drain freely.
The furnace humidifier can also be the culprit of your strange water problem. Luckily, if you invest in regular seasonal HVAC checkups, then your HVAC technician will check for this issue and let you know if anything must be repaired.
4. Heat Exchanger
One of the more expensive possibilities is that you have a cracked heat exchanger. This can lead to leaking water, and also leaking gas. If you suspect you have a cracked heat exchanger, call for professional HVAC repair ASAP.
When In Doubt, Call a Professional
What’s the moral of our story? If you’ve got water pooling at the bottom of your furnace, turn it off and call a professional immediately. Leaky furnace not only signifies a broken unit, but it can also lead to more costly repairs and water damages if left unattended to. Don’t be a fool – call your local HVAC technician today!