The thermostat may be set at 70 and produce a corresponding room air temperature, yet occupants may feel cold. A body loses heat not only to convection to the cooler air, but by radiation losses to cold surfaces. People may report “a draft” when sitting by a window, when in fact it is not cold air moving over them, but the radiation loss to the colder glass. An electric shawl will give great comfort to someone sitting by a window in the winter. Or sit by a wood stove in the middle of the room.