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Why would a unit on the beach (Topsail Island, Emerald Island, Wrightsville BEach etc.) perform any differently or have a different life span than one in service 1 mile off the beach/coast? If the units are in a protected environment (inside a house/basement/garage) and not outside like traditional HVAC, what's the difference?
There is always a heat exchanger/compressor out side the house regardless of of where heating/cooling coils/fan are located inside.
Mostly they just cool and recirculate the inside air, but they do draw in a small amout of ouside air.
The outside air is called make-up air, because it makes up for the air that is leaks out of windows, doors, cracks, etc. It also serves to introduce some fresh air into the house.
That being said, the salt content of the air "on the beach" is higher than the air even just a mile inland and salt is highly corrosive. This salt laden air moving through the HVAC system on a continuous basis contributes to reduce life span.
wonder if there is a simple and inexpensive way to test salt content in the air.
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