Regular maintenance can extend the lifespan of radiators. One of the key maintenance tasks is bleeding the radiators. Over time, air can get trapped in the radiator, reducing its efficiency. By bleeding the radiator, usually by using a bleed key to open the bleed valve and release the air, the hot water can flow more freely, restoring the radiator's full heat output. Another important aspect is checking for leaks. Any signs of water leakage around the radiator or pipe connections should be addressed immediately to prevent water damage to the property. Additionally, it is advisable to use radiator cleaners and inhibitors periodically to keep the internal components clean and protected from corrosion, especially in areas with hard water.