Did you ever notice that when your feet are cold, it feels like your whole body is cold? This is a very natural tendency.
Warm air naturally rises. With radiant floor heating, the room is heated from the bottom – up. This means that your body is situated where the heat base is coming from. The warmth is not blown out to you through obstacles such as your furniture, it steadily, slowly rises to warm you and the room from the ground up.
With forced air, the heat direction depends on the air flow and it requires a much higher temperature base to gain comparable overall room temperature, as shown in the featured image here. Forced air heating distribution depends on the shape of the room, where the furniture is situated in the room, the natural air flow of the room, and the location of the vents.