Deciding where to position a new radiator in a room is, of course, completely up to you. There may be good reasons why you want to place it opposite the window or on the wall where the sofa will be but, if possible, it is usually best to follow a few rules for positioning radiators. By following these rules, you will help the radiator to provide the most warmth and perhaps save a little on your heating bills.
Position 1 – Under a window
Many people wrongly think that by positioning the radiator under a window, all you are doing is wasting heat as it rises against the cold glass. In reality, placing the radiator there will give the best results in most cases. The warm air rising from the radiator will counteract the cold air falling from the glass of the window, meaning that the cold air has less chance to spread into the room.
Another advantage of placing the radiator underneath the window is that this wall is usually left free of furniture and so you make better use of the available space. Even if a wall is free from furniture at the present, you might decide to rearrange the room at some point in the future. Placing a large piece of furniture in front of a radiator isn’t the end of the world, but it will act as a barrier to the heat spreading around the room.
Position 2 – Opposite a window
The position of your radiator is less critical if you have double-glazed windows, as there will be far less cold air seeping into the room and less warm air escaping. However, if you do not have double glazed windows it is usually better not to position a radiator directly opposite a large window. The warm air rising on one side of the room and the cold air falling on the other can sometimes exaggerate the flow of air around the room and create a noticeable draught. If you have no other choice but to position the radiator opposite a window, you can disrupt this flow of air by positioning a shelf slightly above the top of the radiator.