The ‘fan’ setting on a thermostat controls the operation of the air circulation system impartial of heating or cooling. Sometimes, a thermostat affords two fan settings: ‘auto’ and ‘on’. The ‘auto’ setting prompts the blower motor solely when the heating or cooling system is actively operating. Conversely, the ‘on’ setting forces the blower motor to function repeatedly, circulating air all through the constructing even when the system shouldn’t be actively heating or cooling.
The continual air circulation supplied by the ‘on’ setting can enhance temperature consistency all through a constructing, scale back stagnant air pockets, and improve air filtration, resulting in improved indoor air high quality. Traditionally, steady fan operation was extra frequent in older techniques; nonetheless, trendy vitality effectivity concerns have led to the prevalence of the ‘auto’ setting to preserve vitality. Whereas the ‘on’ setting consumes extra vitality, its advantages concerning air high quality and temperature distribution might be important in sure environments or for people with particular sensitivities.
