Booster water heaters are
units that attach to an existing water heater and provide additional energy to
boost the water temperature from the standard output of say 120oF to
a higher temperature. When used with a mixing valve or an anti-scald valve, the
net effect of these units is to increase the capacity of a water heater’s
output, enabling more hot water to be consumed from a tank of given capacity.
By increasing the temperature, the higher temperature water must be mixed with
cold water to make it safe for use, but by doing so, the water in the water
heater tank is consumed at a lower rate by virtue of it being mixed with cold
water before consumption.
