They’re not cheap, so many homeowners want to know how long tankless water heaters last before taking the plunge. You’ll be happy to know they can work efficiently for 15 to 20 years. That’s a significant improvement from standard models, which tend to max out at 10. Tanked water heaters deteriorate faster because of the tank itself.Sep 12, 2023 · Learn about the types, costs, and lifespan of water heaters, from tank to tankless, solar to hybrid. Find out how to extend the life expectancy of your water heater with maintenance tips and signs of failure. 10 Jul 2023 ... Water heaters have a limited lifespan of 10 to 15 years. The constant heat and dampness can cause the components to wear out with time, like the ...4 May 2022 ... Wondering how long a tankless water heater lasts and how to make it last even longer? Learn how with proper maintenance, a tankless can last ...When your household water heater fails, it can be a disaster. No hot water can mean no washing up, no showering and sometimes no heating either. So it pays to do your research as t...May 20, 2022 · Today’s water heaters are more efficient than previous types, but they still need to be maintained regularly to extend their lifespans. A gas water heater should expect to survive between 8 and 12 years, while an electric heater can last between 10 and 15 years with annual maintenance, draining, and cleaning. Typically, tank water heaters last between eight and ten years. Tankless heating systems can last up to 20 years if handled with care. If you want your heater to last as long as possible, you should learn how to flush it regularly, as recommended by your manufacturer. If you live in a hard water zone, you may need to flush it more often.They’re not cheap, so many homeowners want to know how long tankless water heaters last before taking the plunge. You’ll be happy to know they can work efficiently for 15 to 20 years. That’s a significant improvement from standard models, which tend to max out at 10. Tanked water heaters deteriorate faster because of the tank itself.Overall the lifespan of a tankless unit is longer than the traditional one. They need very minimal maintenance so you don’t need to put in much time and effort. A tankless water heating unit lasts for 15 to 20 years on average. Traditional water heating lasts for about 10 years or less. Table of Contents show.How long do standard water heaters last? When it comes to your standard water heater, you might wonder how long it'll keep churning out those soothing warm showers. On average, a traditional water heater with a tank has a lifespan of about 8 to 12 years. These water heaters work by heating and storing a set amount of water in a tank until you need it.Conventional vs. Tankless. You actually can expect somewhat different lifespans between conventional and tankless, with conventional units lasting 8-12 years, and tankless closer to 20. There are also some definite advantages to tankless heaters and hybrid heat pumps along the lines of efficiency benefits and operational costs. Feb 1, 2023 · Tankless water heaters are often good for up to 20 years. Energy source. Electric water heaters often last a few years longer than gas-fired water heaters. Maintenance. If you regularly drain and flush your water heater to remove sediment, it can extend the unit’s life. A well-maintained water heater may last up to 20 years. Water quality. Faq 1: How Long Does A Natural Gas Water Heater Last On Average? A natural gas water heater lasts for about 10-15 years, depending on usage and maintenance. Faq 2: What Are Some Signs That My Natural Gas Water Heater Needs To Be Replaced? Common signs that indicate a need for replacement include decreased hot water supply, …How long do water heaters last? On average, a water heater lasts between 8 and 12 years. However, this number can vary depending on the type, brand, and maintenance of your water heater. Tankless water heaters typically last between 15 and 20 years, while hot water systems commonly last between 10 and 15 years. ...As mentioned earlier, traditional tank-based water heaters typically last between 8 to 12 years, while tankless models can last up to 20 years. If your unit is ...Gas Vs Electric Water Heaters How Long Do Gas Water Heaters Last ? According to the pros, an electric water heater usually lasts one to two years longer than gas-powered units. But this isn’t always the case. A gas water heater is said to be more environmentally friendly and economical compared to electric models. However, they’re …Learn about the types, costs, and lifespan of water heaters, from tank to tankless, solar to hybrid. Find out how to extend the life expectancy of your water …Is a new refrigerator tax-deductible? What about low-flow toilets? Water heaters? In some cases, they don't qualify for a tax deduction, but you might get a tax credit or rebate. L...The reason why this is so important is: 1) you will avoid gross smells with the hot water and sulfur and 2) it will save you from any pipes breaking and leaking. Especially during the winter this will help greatly because pipes tend to freeze. 8. Turn Bypass Valve Back off in RV after Winter.Sep 20, 2023 · How to Extend the Life of Your Hot Water Heater. As I mentioned at the beginning of this article, tank-style hot water heaters typically last between 8 and 12 years. It’s rare for water heaters to last longer than 12 years, but there are a handful of actions you can take to give your water heater the best chance to last longer than average. How long does a 40 gallon water heater last? A 40-gallon water heater should have the same longevity (about eight to fifteen years) as a 30-gallon tank or a 50-gallon version, provided you observe proper care and maintenance. Electric water heaters typically last longer (about 10 to 15 years) than gas-fired water heating systems (8 to …If you recently moved into a home with a water heater that displays any or all of these issues, it could be that the water heater is too old. A conventional gas- or electric-powered hot water heater will need to be changed every 8 to 12 years. If properly maintained, tankless and solar water heaters may last up to 20 years.How Long Does a Hybrid Water Heater Last? The average hybrid water heater will last for about 8 to 12 years. This number will vary depending on how much you use the heater and how well you take care of it. Here are a few factors that will affect how long your hybrid water heater lasts: How well you maintain your heater. There are …Water Heater / By Your Pro Plumber. There was once a magazine called Appliance Magazine that conducted surveys to determine the average life expectancy of various appliances. Their 2005 study estimated that the average gas hot water tank lasts for 10 years and the average electric tank lasts for 11 years. This may seem like an old study, …Feb 14, 2024 · Tank water heaters last an average of 8-12 years, whereas tankless water heaters last up to 20 years. On the other hand, electric heaters last an average of 10-15 years, and gas water heaters last up to 8-12 years. If you think your water heater needs repair or replacement, it’s time to call the professionals. When it comes to heating water in your home, there are two main options: traditional water heaters and tankless water heaters. While traditional water heaters have been the norm fo...Rinnai water heaters are some of the most reliable and efficient units on the market. They provide hot water on demand and can be installed in a variety of locations, making them a...Different types of water heaters have different lifespan estimates. Water heaters with tanks typically last 8 to 12 years, while tankless water heaters can operate effectively for 20 years or longer. Tankless water heaters can last longer because they work on demand instead of continuously like other water heaters. How long do water heaters last? The answer depends on a number of factors, including the type of heater, the quality of the unit, and how well it is maintained. Tank-style water heaters tend to have the longest lifespan, with some units lasting upward of 20 years. Conversely, tankless water heaters have a shorter lifespan, with most units …Learn about the types, costs, and lifespan of water heaters, from tank to tankless, solar to hybrid. Find out how to extend the life expectancy of your water …Oct 29, 2023 · How long do water heaters last? Many water heaters last about eight to 10 years. Some extra sturdy ones can last up to 12 years. In fact, in most places in the US…. A gas tank water heater typically lasts around 10 years. An electric tank water heater typically lasts around 11 years. A tankless water heater (gas or electric) typically lasts 20+ years. But here’s the unfortunate truth: In Arizona, atank water heater typically only lives 6 to 10 years on average.1. Age. The easiest warning sign that your water heater is going back soon is age. Most water heaters last from 6 to 13 years, with 8 to 10 years as the average. If your water heater is more than 10-years-old, you should consider investing in a new unit before problems arise. 2. A high-quality RV water heater might last for about 15 years. It might even last longer with proper maintenance. Always be mindful of your RV water heater usage by performing regular maintenance. In this article, lets discuss the aspects that influence the average lifespan of a water heater that depends on some factors.Oct 23, 2023 · If you recently moved into a home with a water heater that displays any or all of these issues, it could be that the water heater is too old. A conventional gas- or electric-powered hot water heater will need to be changed every 8 to 12 years. If properly maintained, tankless and solar water heaters may last up to 20 years. How long does a 40 gallon water heater last? A 40-gallon water heater should have the same longevity (about eight to fifteen years) as a 30-gallon tank or a 50-gallon version, provided you observe proper care and maintenance. Electric water heaters typically last longer (about 10 to 15 years) than gas-fired water heating systems (8 to …Hybrid water heaters typically last for 13 to 15 years. Like tankless water heaters, they don't run continuously, which increases their lifespan compared to traditional tank units.Apr 6, 2022 · How Long Do Electric Water Heaters Last? An average electric water heater life expectancy is just a few years longer than a gas water heater lifespan at around 10-15 years . The two types of water heaters work in much the same way. Compared to traditional water heaters, tankless models provide numerous benefits. They last much longer, typically up to 20 years, compared to the average lifespan of 10-15 years for traditional heaters. Tankless water heaters also save space, consume less energy, and provide continuous hot water without the risk of running out.Tank-style water heaters can last between 8 to 12 years on average. However, when used and maintained appropriately, it can even last for over 15 years. Tank-style water heaters have an anode rod that attracts corrosive elements in water, protecting its interior lining from corrosion.Gas water heaters are much eco-friendly and energy-efficient compared to their counterparts. In fact, most homes invest in them for a long term supply of heated water. How long do gas water heaters last? Their average lifespan is about 8 to 10 years, which is a few years lesser than their electric equivalents. This is mainly due to corrosion …On 2015-07-03 - by (mod) -. Cindy: Check first that the oil fired water heater is in fact on and runs in response to a call for hot water. You may need to ask your plumber to drain debris and silt from the heater tank bottom and to check that the water heater dip tube is …A gas water heater has a lifespan of 8-12 years. Electric heaters have a lifespan of around 10-12 years. A tankless water heater has a lifespan of 20 years or longer. It is essential to know the life of hot water heater so you can avoid the sudden need to search for a water heater replacement. Table of Contents [ hide]Photo 1: Remove the old water heater anode rod. Loosen the hex head with a short burst from your impact wrench. Unscrew it by hand once it’s loose. Most water heater tanks are steel with a thin glass lining to protect the metal from corrosion. Since the lining eventually cracks, tanks have a second line of defense against rust: a long metal ...The simplest answer to this question is that the average water heater will last around 10 years, or you can say anywhere from 8 to 12 years. This lifespan will depend somewhat on various factors and conditions, like: The quality of the water heater. The amount of use it gets. The environment is in (is it exposed to the elements, to extreme ...The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run. It means that the volume of water also increases; this is called thermal expansion. Thermal expansion creates and builds up extra pressure inside the heating tank. This pressure affects not just the tank but the entire loop since it is closed. The pressure has nowhere to escape, so this can be dangerous. Moreover, since the water increases in ...Tank water heaters will last an average of 8 to 12 years, while tankless water heaters can last even longer, up to 20 years. There are also electric and gas water heaters that will vary in lifespan, but in general gas ones last 8-12 years, while an electric heater could last upwards of 10-15 years.Many types of water heaters last longer than 15 years. Solar water heaters generally last 20 years or more. While conventional tank water heaters usually only last 10 to 15 years, the larger they are, the longer they’ll last, so 50-gallon tanks usually last longer than 40-gallon ones. Regular maintenance also increases life expectancy.Jan 3, 2024 · Average lifespans: Gas water heaters last 8-12 years, electric ones 10-15 years, and tankless heaters 20-30 years. Factors affecting lifespan: Improper installation, usage, quality, and infrequent maintenance can all shorten a water heater’s life. Signs of replacement: Strange noises, tinted water, lower temperatures, and pooling water ... Water Heater Lifespan: How Long Does a Water Heater Last? by Ray Posted in: Water Heating & Filtration Water Heaters Understanding your water heater and how long it's …Simply because we don’t see it and the manufacturers say it’s impossible to make tanks last longer. When someone asks ”how long do water heaters last”, the answer should be : Wayyy more than 10 years! There is some way to dramatically extend the life of your water heater.Educating yourself on how long water heaters last is an excellent way to anticipate a water heater failure. Burt’s Reliable can help. Lifespan of a traditional water heater. Traditional water heaters have storage tanks that — typically in the range of 36 to 46 gallons for a single-family home. They’re the most common (and generally the least …Jan 15, 2024 · Part of preparing and budgeting for a water heater replacement is knowing how long a water heater will last. An electric tank water heater lasts 10 to 15 years. A gas tank water heater lasts 8 to 12 years. With routine maintenance, tank water heaters can last 20 years or more. Tank water heater repairs cost $200 to $300, while replacement costs ... How long do standard water heaters last? When it comes to your standard water heater, you might wonder how long it'll keep churning out those soothing warm showers. On average, a traditional water heater with a tank has a lifespan of about 8 to 12 years. These water heaters work by heating and storing a set amount of water in a tank until you need it.21 Feb 2023 ... These are commonly found in older unmaintained water heaters (around 10-12 years old). If you know there's a leak but can't actually find it, ...When all factors are put into consideration, expect a brand new and original tankless water heater to take you for around 20 years. This length may extend to 25-30 years if the broken parts and components are replaced from time to time. The lifespan we have denoted stands in sharp contrast with the storage tank which manages a paltry 10-15 years. Oct 18, 2023 · Tankless Water Heater. Tankless water heaters last much longer, often up to 20 years. A common issue for conventional water heaters is the failure of the tank itself; this isn’t an issue you have to worry about with a tankless water heater. Keep in mind, though, that a tankless water heater costs about $2,500 on average—roughly double the ... Learn the basics of tankless water heater installation and replacement, including the cost, materials and tools needed to get the job done. By clicking "TRY IT", I agree to receive...How Long Do Whirlpool Water Heaters Last? Tankless whirlpool water heaters last for about 20 years, while the tank-type last for eight to 12 years. Tankless water heaters last longer due to their energy-saving feature, which also reduces the rate of possible damage. Water heaters with tanks easily get damaged, hence decreasing their …Jan 15, 2024 · Part of preparing and budgeting for a water heater replacement is knowing how long a water heater will last. An electric tank water heater lasts 10 to 15 years. A gas tank water heater lasts 8 to 12 years. With routine maintenance, tank water heaters can last 20 years or more. Tank water heater repairs cost $200 to $300, while replacement costs ... In most areas and for many water conditions they last about five years before they are completely depleted. If you read the manual that comes with your water heater you will see the manufacturer recommend that the anode be inspected at least annually for deterioration.In fact, electric water heaters typically don’t last as long as gas water heaters, and they usually cost twice as much to operate. Whether you have a traditional tank or a tankless water heater: Traditional storage water heaters and hybrid water heaters may begin showing signs of aging after about 10 years. If your unit breaks down …On average, a water heater (tank style) lasts about 8-12 years, but that can vary depending on type, where it is kept, and environment. If you are concerned about having to replace your water heater, do not fret. The average replacement cost of a water heater is only a few hundred bucks and you can learn how to do it yourself in this blog! Sep 12, 2023 · Learn about the types, costs, and lifespan of water heaters, from tank to tankless, solar to hybrid. Find out how to extend the life expectancy of your water heater with maintenance tips and signs of failure. As mentioned earlier, traditional tank-based water heaters typically last between 8 to 12 years, while tankless models can last up to 20 years. If your unit is ...Before you go shopping for a new water heater, you must do your homework. There are numerous factors to consider when selecting the best water heater. Such factors include your per...With adequate upkeep, a solar powered water heater can last for as long as 20 years. It may take a while to realize your return on investment, but its longevity ...20 years. The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run.In general, hot water systems last around 8 – 12 years. To be more specific: Storage hot water: Enamel and glass-lined tanks last 5-10 years, whereas stainless steel and copper last 7 – 10 years. Instant hot water: Last longer than storage systems, usually up to 20 years. Heat pump hot water: 10 years (approx).Final Thoughts: 50, 40, 30, or 6-gallon water heaters can last about 9 to 15 years on average. However, tankless water heaters can even last more than 25 years. But it all depends on how you use it and how properly you take care of it. Otherwise, your water heater won’t even last for 3 years let alone 15 years.Mar 16, 2023 · How Long Does a Water Heater Last on Average? Like we stated, most standard water heaters can be expected to last between 10 and 15 years. The average lifespan of water heaters is between 8-10 years, but with more enhanced and modern technologies, they can last upwards of 15-20+ years. The heater core in the Chevy Astro van acts like a small radiator that the engine coolant passes through. If the van's heater has trouble working, you may need to replace the core....Electric water heaters will last for 10 to 15 years while gas water heaters will last for 6 to 10 years. Again, this will depend on brand, water quality, maintenance practices and the installation location. Tankless water heaters will last for up to 20 years or more. The size of a water heater does not affect how long it lasts.Gas Vs Electric Water Heaters How Long Do Gas Water Heaters Last ? According to the pros, an electric water heater usually lasts one to two years longer than gas-powered units. But this isn’t always the case. A gas water heater is said to be more environmentally friendly and economical compared to electric models. However, they’re …Knowing Your Water Heater Type: Tank or Tankless. A standard tank-type water heaters as well as their tankless counterparts can be expected to operate for up to 10 years on average. However, an efficient tankless water heater can last much longer than this if properly maintained! Tankless models come without storage tanks, which make …The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run. As mentioned earlier, traditional tank-based water heaters typically last between 8 to 12 years, while tankless models can last up to 20 years. If your unit is ...Generally, the average water heater tank can last approximately eight to 12 years, and the tank-less versions can last up to 20 years, per Bob Vila.The outlet notes several factors can increase a water heater's longevity, including, maintenance, the type of heater (gas or electric), and the quality of the unit.
Mar 31, 2020 · All water heaters are designed to last more than ten years, whether tank or tankless. It all depends on how you take care of the heater, though. Identifying common problems and solving them promptly can dramatically extend your water heater’s lifespan. Lifespan of Tank Water Heaters. Conventional tank water heaters can last for 8-12 years on ... . El salvador trinidad y tobago
Learn how to tell if your water heater needs replacing based on its age, performance, and condition. Find out the average lifespan of different types of water heaters and how to maintain them.The water isn’t getting hot enough, or isn’t getting hot at all. You hear loud popping noises while the water heater is operating. There are leaks surrounding the water heater, which could indicate a serious problem. The water heater is more than 10 years old or nearing the end of its life expectancy. If you need to replace your water ...Oct 24, 2021 · A water heater's lifespan varies by type, quality, and maintenance. Learn how to check your water heater's age, signs of aging, and when to replace it with this guide from Bob Vila. Find out the average life expectancy of a tank-style and tankless water heater, and how to plan ahead for a replacement. Jan 29, 2019 · Like mentioned before, the average life expectancy of a water heater is anywhere from 8 to 10 years. How long does a gas water heater last? Gas heaters tend to have a life expectancy of about 6 to 8 years. Tankless heaters have a much longer life span that both the water heater and the gas heater. Licensed • Insured. Tank water heaters usually last about seven or 10 year s. However, you may be surprised to know that some heaters last much longer, some even up to fifteen years. Luckily, a good warranty will guarantee replacement for at least the first few years. Here are some tips for finding a good water heater warranty. Propane heaters can make cold winter nights a lot more bearable. Here's a list of some of the best indoor and outdoor propane heaters to keep you warm this winter season. If you bu...The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run. Electric water heaters will last for 10 to 15 years while gas water heaters will last for 6 to 10 years. Again, this will depend on brand, water quality, maintenance practices and the installation location. …In fact, electric water heaters typically don’t last as long as gas water heaters, and they usually cost twice as much to operate. Whether you have a traditional tank or a tankless water heater: Traditional storage water heaters and hybrid water heaters may begin showing signs of aging after about 10 years. If your unit breaks down …Water heaters last about eight to 10 years and some can last up to 12. But a water heater can also need to be replaced earlier if something goes wrong. How do I …How Long Do Water Heaters Last? March 6, 2023. Get comfort and energy efficiency with Taylor Energy! Making an educated decision on a water heater can drastically improve your home’s comfort, energy efficiency and budget. Water heating is the second-largest user of energy in households behind heating and cooling; accounting for …Proper maintenance can prolong a water heater lifespan, but a replacement may be necessary if your water heater has reached its final days. A well-maintained ...Is a new refrigerator tax-deductible? What about low-flow toilets? Water heaters? In some cases, they don't qualify for a tax deduction, but you might get a tax credit or rebate. L...Tankless water heaters can last anywhere from 12 to 30 years, depending on factors such as the type of heat exchanger installed. A copper heat exchanger typically has an average lifespan of 12 to 20 years, while a stainless steel heat exchanger can last up to 25 to 30 years. Generally, water heaters should last 12 years, about two years after the best warranties run out. If you recently purchased your home, then you may not know the age of your water heater. You can check the label to learn when it was manufactured to help you determine whether a water heater replacement is in your near future.Rinnai water heaters are some of the most reliable and efficient units on the market. They provide hot water on demand and can be installed in a variety of locations, making them a...Simply because we don’t see it and the manufacturers say it’s impossible to make tanks last longer. When someone asks ”how long do water heaters last”, the answer should be : Wayyy more than 10 years! There is some way to dramatically extend the life of your water heater..
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Scarfell pike | The manufacturer's warranty period as well as a description of what is covered under the warranty are clues both to the importance of water heater maintenance and hints about how long the company expects their water heater tank to last. Typical water heater warranty periods for a water heater installed for use by a single family are 6-years, 9 ...How Long Does a Water Heater Last on Average? Like we stated, most standard water heaters can be expected to last between 10 and 15 years. The average lifespan of water heaters is between 8-10 years, but with more enhanced and modern technologies, they can last upwards of 15-20+ years.[1] Tankless water heaters last up to 20 years. Because they don't have a tank, these types of water heaters (also known as "on-demand" water heaters) can last twice as long as the conventional …...
Buckwheat snl | A tankless water heater can last anywhere from 20 years to 30 years. This is double the life of a tank or storage water heater. The reason for the longer life of a tankless water heater is partly due to the fact that it does not need to store water and is, therefore, less susceptible to some of the factors affecting tank water as discussed below.Feb 16, 2024 · Many types of water heaters last longer than 15 years. Solar water heaters generally last 20 years or more. While conventional tank water heaters usually only last 10 to 15 years, the larger they are, the longer they’ll last, so 50-gallon tanks usually last longer than 40-gallon ones. Regular maintenance also increases life expectancy. ...
Lay lady lay | The average life of a water heater is 8 to 12 years; more specifically, the average lifespan of a water heater in Georgia is 10.8 years.Maintaining your Rinnai water heater is essential for ensuring that it runs efficiently and safely. Here are some tips to help you keep your water heater in top condition: The firs...Oct 25, 2023 · However, tank water heaters are more affordable upfront and might suit households with lower hot water demand. So, How Long Do Water Heaters Really Last? Traditional tank-style heaters last around 10-15 years, while tankless heaters usually last longer, often up to 20 years or more. Factors That Affect How Long Water Heaters Last ...
Argentina vs panama | How Long Do Water Heaters Last? March 6, 2023. Get comfort and energy efficiency with Taylor Energy! Making an educated decision on a water heater can drastically improve your home’s comfort, energy efficiency and budget. Water heating is the second-largest user of energy in households behind heating and cooling; accounting for …Water Heater / By Your Pro Plumber. There was once a magazine called Appliance Magazine that conducted surveys to determine the average life expectancy of various appliances. Their 2005 study estimated that the average gas hot water tank lasts for 10 years and the average electric tank lasts for 11 years. This may seem like an old study, …...
Cat meow | 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.Educating yourself on how long water heaters last is an excellent way to anticipate a water heater failure. Burt’s Reliable can help. Lifespan of a traditional water heater. Traditional water heaters have storage tanks that — typically in the range of 36 to 46 gallons for a single-family home. They’re the most common (and generally the least …[1] Tankless water heaters last up to 20 years. Because they don't have a tank, these types of water heaters (also known as "on-demand" water heaters) can last twice as long as the conventional …...
Lauren graham matthew perry | How Long Do Water Heaters Last? Generally, a water heater, whether an outdoor heater or an indoor heater, can last nearly 10 to 15 years. The lifespan of tankless water heaters is approx. 20 years. It is based on proper maintenance of the heater, how heavily the water heater is utilized, and various other factors.Lifespan. Most tankless water heaters will last for up to 20 years or more, which is a long lifespan in comparison to tank water heaters, which last around 10–15 years. Tankless water heaters use new technology that helps them to stay functional and operational for much longer than some of the alternatives out there.The reason why this is so important is: 1) you will avoid gross smells with the hot water and sulfur and 2) it will save you from any pipes breaking and leaking. Especially during the winter this will help greatly because pipes tend to freeze. 8. Turn Bypass Valve Back off in RV after Winter....