Does a decorative radiator grill “choke off” heat, or cause radiator heat lost?
No. A decorative radiator enclosure will deliver more useful heat energy and reduce radiator heat loss. All of the heat from your radiator remains in the room, and due to the decorative radiator grill design, the heat is projected into the comfort zone, where it’s needed. Heat is also not absorbed by outside walls or concentrated at the ceiling, where it’s wasted.