Having hot water on demand is a convenience that many of us take for granted. Imagine taking a shower on a cold winter morning, and you can instantly appreciate this luxury we have on tap, pun intended.
But showers are one thing. Imagine cooking in the kitchen, and getting some egg or other foodstuff on your hand. You just need a quick 5-second spurt of hot water to wash off the gunk. Instead, you stand there for nearly half a minute with egg yolk on your hand, waiting for the water to heat up. Meanwhile, gallons of cool but perfectly clean water run down the drain.
Hot water recirculation pumps are one way to shorten the waiting time, while reducing unnecessary water wastage.