Although this topic is focused on increasing the capacity of your water heater for enjoyment purposes, there is however another, more important reason for doing so. Legionairres disease is mistakenly thought to be uncommon. This is mainly because of misdiagnosis' and unreported cases. Many times the disease only strikes a few at a time, and rarely get the publicity of other ailments that sicken many at a time. Legionairres disease is caused by the strain of bacteria known as legionella. Legionella breeds very aggressively in stagnant water temperatures between 95 and 115. This means if your water heater is only set to 115-120, it will be well within the breeding range most of the time as the temperature dips 10-20 degrees until the heater "calls" for more heat. Installing a thermostatic mixing valve and turning up your tanks temp above 140 degrees will help keep your family safe, and in the shower longer!
This is a relatively simple job for an experienced plumber, and will definitely be money well spent.
You can count on this thermostatic mixing valve and all Kohler supplies to keep your fixtures at optimal performance. The valve mixes hot and cold water to allow for a wide range of temperature selections or fixed settings. Solid brass construction ensures years of reliable use. Kohler K-13601 Thermostatic Mixing Valve Features: Solid brass construction ensures years of reliable service Mixes hot and cold water allowing for a wide range of temperature selections or fixed settings Kohler Lifetime Limited Warranty.