Using this heating element is straightforward. First, make sure your hot water system is turned off and has cooled down. Then, carefully remove the old heating element and replace it with this one, connecting the 20cm flying leads with fork-type connectors to the appropriate terminals. When it comes to safety, always follow standard electrical safety procedures. Avoid touching the element when the power is on. For maintenance, check the element regularly for any signs of damage or wear. If you notice any issues like a broken coating or loose connections, it's best to replace the element. With proper use and maintenance, this heating element will serve you well for a long time.