If your home radiators are cold at the bottom whilst the heating is switched on, it signifies that the flow of water around the device is being restricted. Most often, this is caused by the formation of radiator sludge.
Over the course of weeks and months, radiator sludge can build up within the a
ppliance. Then, once enough sludge has conglomerated, it can cause blockages within a radiator’s key flow channels.
For further insight, explore our blog, Why is my radiator cold at the bottom?