Howard writes from Tuckahoe, New York: "Do radiator covers made of wood, which are only open on the side decrease the efficiency of a steam heating system? If so what do you recommend?"

Answer: Radiator covers that are only open on the sides are done so by design. The purpose is to have the heat be directed into the room instead of just letting it all rise to the ceiling level. This is not really my area of expertise, so if you want to know more about radiator covers I suggest calling or writing to a radiator cover manufacturer.