AK series generators are available with the optional ‘warm start’ feature that keeps water in the tank preheated to a temperature just below a boil. With the ‘warm start’ feature activated, steam begins flowing into the steam room in less than 60 seconds after the user turns on the generator, reducing the time required to heat the room to its desired temperature by several minutes. The "Warm Start” feature can be disabled with a simple on/off switch to eliminate unnecessary power consumption when the steam bath will not be used for extended periods of time.