With today's economy and need to save money and all, the cost of purchasing a new water heater can get expensive. So, instead of purchasing a new water heater for the customer, we're going to install the tank booster pro to increase the capacity of the hot water. By your local plumbing codes pretty much across the United States, water heaters come preset to 120 from the factory, free anti-scaled purposes. But with the tank booster pro, you increase the temperature on your heater up to about 140. And then what happens is, you can go ahead and temper the water like a mixing valve and that will give you more longevity.