Are you tired of running out of hot water. The Tank Booster is the solution to your problem. If you are unable to get the amount of usable hot water needed out of your plumbing system, installing Tank Booster on your existing water heater can double the amount of usable hot water. The Tank Booster is a thermostatic mixing valve that mixes hot and cold water together to deliver the desired output temperature. After installing, turn the set temperature on your water heater up from 120��F to 140��F. The Tank Booster then mixes cold water back in to reduce the temperature down to a safe 120��F. By storing water at a higher temperature and mixing cold water in to reduce the temperature, you will double the amount of usable hot water delivery from the same size tank. As an added benefit, the Tank Booster protects your entire home from scalding by regulating the output temperature to a 120��F. Even better, by turning up your water heater temperature to 140��F, you can help protect yourself from legionella bacteria growth. The number one cause of legionella bacteria growth is water stored at temperatures of 68��F to 113��F; this bacteria cannot survive at temperatures of 140��F and higher.