Changing the water heater element is probably faster and easier than you thought, and is only a fraction of what a new water heater costs. The steps required are .How can you tell when you need a water heater replacement? Here are five clues that your water heater needs to be replaced..Water Heater Pressure Relief Valve Prevent Water Heater Explosion Replace a Relief Valve.The cost to Replace a Water Heater starts at $, $, per heater, but varies significantly with common options. Get real costs for your SPECIFIC project .
Based on the manufacturer s suggested service life, the life expectancy of a water heater is about years. That varies with the location and design of the unit, quality of installation, maintenance schedule and water quality..