Until yours breaks, you most likely never think about replacing your water heater. As long as you turn the faucet on in hot water comes out, that's all that's really demanded of it. Unfortunately, if it starts to leak or explodes, sending water throughout your home and possibly even causing structural damage, you will immediately be in the market for a water heater replacement. While situations like that are obvious, being able to spot the signs beforehand is the key to reducing inconveniences and saving money on repairs.