Heat-generating equipment, such as older television sets, computer equipment, or kitchen appliances, adds to the cooling load of a room simply by operating nearby, meaning a room with several such devices running will generally need more cooling effort to reach the same set temperature compared to an otherwise identical room without this additional heat source. Reflective or heat-absorbing surfaces, such as large uncovered windows facing direct sun, dark-colored flooring, or dense concentrations of electronic equipment, can create localized hot spots that make a room feel warmer than the average temperature reading might suggest, sometimes leading occupants to set the thermostat lower than would otherwise be necessary.