The amount of energy you can save on hot water depends
on the type of business you’re in. In an office or retail store, the amount may
be negligible. But in operations like laundries, motels or restaurants, the savings
can be dramatic.
There are four ways to reduce the money you spend on hot
water:
Lowering the temperature of the water itself;
Cutting back on the amount of water you use;
Slowing heat loss from your water heater and pipes; and
Using reclaimed heat from another source, such as a heat
pump or refrigeration unit.
In a well-designed and insulated system, you should expect
that about 80 percent of the energy you consume will be delivered as usable
hot water at the faucet. (Even the best systems lose some heat.)