Almost Heaven Sauna’s HeatSource Heater is a traditional wall-mounted heater with built in controls. This high-performance heater works quickly and heats to the high temperature of 195 degrees Fahrenheit. The heater is constructed of stainless-steel, designed with a large stone cavity for maximum heat release. There are two built-in control dials for temperature preference and a timer. The smooth operating timer will run for 60 minutes and then shut off the heater as a safety control feature. The heater comes in 4.5 KW, 6KW, and 8KW. Stones are also included with a purchase of this heater.