Rooms that sit against external walls often feel noticeably colder, even when radiators are working properly. This usually isn’t a radiator issue at all, but a surface temperature problem.
External walls lose heat faster than internal ones. When those surfaces are cold, they draw warmth out of the air and your body, creating a persistent chill. This is common in older brick homes and properties without cavity wall insulation.
What tends to help is insulating the surface rather than increasing heat. Thermal curtains, insulated wall linings, and even furniture placement can reduce how much cold radiates into the room. This worked better than expected in one room where heating output was already adequate.
This is part of the broader heat-loss picture explained in keeping heat in your home affordably, where surface temperature matters as much as air temperature.
If the room also heats unevenly or feels draughty, this guide on cold rooms and this heat loss breakdown will help connect the dots.
