Function Gas Dryer
It is very good example to explain how the gas drying fucntion happens is “cloth washing” . The water evaporation from cloth’s surface makes dry to cloths using heat, air flow and tumbling action.
A motor fan draws air and directs it over a heated burner that is thermostatically can be ignited externally. The heated or warm air channeled through bet cloths. The warm air absorbs all moisture and then it exhausted from the dryer to lint filter. This process is reversible until the desired amount of moisture is removed.
The efficiency of gas dryer is larger due to very less probablity to consume high energy and proper venting.
source: http://www.blueflame.org/datasheets/gasdryers.html