Reasons for using a concrete pad under an HVAC condenser unit

Now that it’s no longer winter and spring is almost gone, the rainy weather has come in full effect.

I live at the foothills of a beautiful mountain range, and it’s common for the rain water to trickle down through brooks and streams.

If we get a flash flooding event, you have to be mindful of sudden changes in water levels regardless of where you are and what you are doing at any given moment. Our house had a four foot crawl space underneath to account for these flash flooding situations, saving the building’s interior from water damage of any kind. Our front porch was on a tall deck that was short and stout in depth, with stairs leading down to the driveway below. The back porch was similar, but the deck was much larger to accommodate a barbecue and seating for a family sized dinner. We even had an above ground swimming pool for a few years before it was irreparably damaged during a sudden flash flood. Thankfully these floods haven’t damaged my HVAC equipment yet. My HVAC condenser sits on a concrete pad in part to protect it from the elements, be it wind or rain. It also maintains a level surface for the compressor to run on, otherwise you could find yourself struggling to prevent the condenser from making noise while the entire system cycles. It’s a lot easier to avoid this altogether by simply using a concrete pad underneath every HVAC condenser that has to sit at ground level. I’m going to put my next HVAC condenser on a raised wooden platform the next time around.


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