Why Is My Utility Room Floor Always Damp Near the Water Heater?

https://fire2020.org/how-a-slow-attic-leak-and-mineral-caked-pipes-fooled-me-for-years/

You're standing in the utility room, barefoot on a damp patch by the water heater, thinking: is this the pressure relief valve, the tank itself, or just sweating? Cut to the chase - how you respond depends on the source