A passive solar water heater system relies on natural convection and gravity to circulate water, whereas an active solar water heater system uses pumps and controls to circulate water.
A passive solar water heater system relies on natural heat transfer mechanisms, such as conduction and convection, to heat water, while an active solar water heater system uses mechanical components, such as pumps or fans, to circulate the water and enhance its heating process.
A passive solar water heater system relies on natural processes such as convection and gravity to circulate water through the system, while an active solar water heater system uses pumps or other mechanical devices to move water.
