With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.
A professional can sometimes repair these issues, but if your water heater is older, you'll need replacement. For example, a 20-year-old water heater is nearing the end of its service life and will need to be replaced even if repairs are possible.
When should I consider replacing my water heater? If you suspect your water heater is more than 10 years old—it is time to consider replacing it before you're left with an emergency decision. To determine the age of your water heater, you'll need to identify the Brand Name and Serial Number for your unit.
Water Heater Lifespan
If your tank water heater is more than 10 years old, it may be time to consider replacing it. With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.
If your water heater is more than 10 years old, leaks around the base of the tank or if it works erratically, it's probably time for a replacement. You may also choose to upgrade to a more energy-efficient model to cut your energy expenses. In some cases, repairs and troubleshooting can save your existing water heater.
It would be wise to start looking for a replacement because, like all mechanical equipment, water heaters have a life expectancy. Traditional storage water heaters typically last about 10 to 15 years, while tankless water heaters can last 20 years or more.
Hard water can cause sediment to build up in your water heater, leading to corrosion and shortened lifespan. We recommend installing a water softener or using a filtration system if you have hard water. This will not only extend the life of your water heater, but it will also improve the quality of your water overall.
As a result, most insurance companies require their clients to replace their hot water tanks after 10 years; otherwise, they won't be covered under their homeowners insurance in the event of water damage.
With nothing more than a once-per-year flushing maintenance service, a tankless water heater can easily last 20 to 30 years, and some will even last quite a bit longer.
Sediment Buildup
— As an aging water heater is continually called upon to heat and reheat water, sediment starts to form on the bottom of the tank. Over time, the sediment hardens and grows thicker along the tank floor.
The life expectancy of a hot water tank varies depending on its size, how often it is used, and how well it is maintained. A standard 40-gallon tank will last between 10 and 15 years while larger tanks (50 gallons) have a lifespan of up to 20 years.
Old water heaters are much less energy efficient, both because they are aging and because standards were lower back then, which could mean more money you're paying each month in energy costs compared to a newer heater.
When it's time to replace a water heater, a licensed plumber is the best person to call. Whether a homeowner needs a simple replacement or wants to switch from a tank to a tankless water heater, a plumber will know exactly what tools and skills are required to install a new water heater.
If you place your water heater on a higher setting, the water coming out of it will be hotter, and you won't need as much to reach that same temperature. Raising the temperature setting on your water heater ultimately makes your hot water supply last longer.
Rheem hot water systems have a typical life span of between 5 and 15 years depending on water conditions and how well the system has been serviced. You can add years to the life to a Rheem hot water system if you have it serviced every 5 years.
An average 40-gallon heater will only take about 30 to 40 minutes to provide heat water, while you can expect hot water from a larger tank (80-gallons) in approximately 60 to 70 minutes.
What Happens if I don't Flush My Water Heater? Leaving sediment build up in your water heater can not only cause it to work harder, but also lead to some serious problems. For example, if the sediment gets to be too much, you can start to see it come out of your faucets.
A water heater needs to be properly drained as part of its regular maintenance. Over time, sediment builds up in the bottom of a water heater, which can lead to clogs, says The Family Handyman.
If you flush a water heater that already has a significant sediment buildup, it can actually cause more problems. Excessive or large sediment pieces can get stuck in the tank drain valve, or end up exiting the water heater and going through the pipes in your home – and neither of those is an easy fix.
Water Heater Lifespan
A hot water heater's lifespan depends on many factors, including the type of water heater, the energy source, the type of water you have, and how well the unit is maintained. On average, most water heaters last between 8 and 12 years but some can last up to 20 years with regular maintenance.