Get Radiator Not Heating Up At Top US. This radiator is the only one in the house connected direct to my boiler, wasn't a issue for 10 years then suddenly became a problem. The radiator doesn't heat up fully despite both valves being fully open and there also seems to be a temperature difference across the radiator with the bottom being hotter than the top.
If you don't have any filters installed, this can build up quickly.
Radiator warm at the bottom but cold at the top. While you may want to turn up the thermostat, your boiler will be using more fuel to reach a higher temperature leading to higher heating bills. Then, keep a radiator running with a. A radiator which is cold at the bottom but hot at the top will leave your home feeling cold.