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Why Tankless?

Feb 11, 2020

Why Install Tankless Water Heaters?

Unlike Europe and Asia, where tankless on-demand waterheaters are common, in the USA storage type units are prevalent. This type of technology is well developed, understood by most homeowners, but really quite wasteful. In today's world more people are making an effort to preserve our natural resources and conserve energy. Conventional tank type heaters are throw way appliances and their carcasses are clogging landfills nationwide.

USA Water Heater History

The traditional residential whole house gas model tank type heater dates to 1894. The first model with 90% efficiency was produced in Kalamazoo, Michigan by a company named Humphrey. Today's tank models are only about 75% efficient. The reason is because of simple economics. The older models were made of "Monel" which was a copper-nickel alloy. Many of these that were produced in the 1940s and '50s are still in use today. These days, the primary concern for consumers and contractors is simply the lowest possible price. To be competitive in today's marketplace, tank type heaters are made from very thin metal with a glass coating. Essentially, we accept new heaters that are 20% less efficient than those of 100 years ago. The average American household spends $400 to $600 per year for water heating, making water heating the second highest energy expenditure behind furnace and air conditioner operation.

Today, after 100 years without change, North Americans are beginning to accept new water heater technology. The technology that is familiar to families in Europe, Asia, Central and South America seems new to the average American homeowner. In fact, this technology is now considered "mature".

Tankless Water Heaters

In comparison to conventional tank heaters, tankless models differ in the fact that they do not have a large water storage tank. In theory, on demand type instantaneous water heaters should be the best way to go since there is no energy wasted by heating a large tank of water for indefinite periods of time. These models supply instant hot water in a continuous supply as needed. Sensors turn on the instant heater when a hot water tap is opened, and the unit turns off when the faucet or shower head is closed and the flow of hot water stops.

No Storage = No Shortage

Tankless water heaters are capable of supplying more hot water than a tank water heater which has a stored total capacity. Exceed this capacity of stored hot water and you need to wait for another tank to heat. Depending on your model and type of tank type heater, this can take several hours. On demand means there is no energy being wasted re-heating a tank of hot water. On demand means never worrying about running out of hot water. Imagine the luxury of always having enough hot water for your showers, your hot tub and still have an endless supply of hot water for the rest of your household needs. For large homes or small businesses with greater GPM needs, tankless heaters can be joined together and work simultaneously to supply larger volumes of hot water.

A few words about water flow in gallons per minute (GPM). Tankless water heater manufacturers speak in gallons per minute, tank type manufactures speak in total gallons held in reserve in the tank. For example, a tank type heater may hold 40 gallons of hot water and a tankless heater may be capable of producing a maximum constant flow of hot water at 3.2 gallons per minute. Comparing a 3.2 Gpm tankless water heater to a 40 gallon tank type heater is in fact an interesting thing. At the flow rate of 3.2 gallons per minute, a 40 gallon tank type heater will run out of hot water in 12.5 minutes. Our 3.2 Gpm EZ Deluxe tankless heater will still be providing hot water at the same flow rate long after the 40 gallon tank heater is running cold.

In a tankless type heater, the water is heated as it passes through the unit so you will never have to use hot water that has been stored in an old rusty tank. As the years pass, a conventional tank-type water heater begins to accumulate rust and build-up scale inside the tank, which is where your hot water is being stored for use.

Tankless water heaters can be installed virtually anywhere. Compared to traditional water heaters, the most obvious difference is its small size. Our tankless water heaters mount on the wall, inside or outside.

Tankless heaters require a different concept in exhaust. Because they use a forced air duct system that has higher temperatures, stainless steel pipe designed for this purpose is an essential part of any installation of an indoor model. This special forced air exhaust pipe is unique to this technology and has sealed joints. (On this type of exhaust, the gasses are forced outside under pressure.)

In comparison, conventional gas water heaters use a draft method of exhaust. This exhaust method relies upon natural suction to draw out the gasses though a flue. These gasses contain carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, formaldehyde, respirable particulates and other harmful bi-products of combustion. These combustion products may result in eye, nose, and throat irritation; fatigue; dizziness; and nausea. With an indoor on demand tankless heater using a sealed forced air exhaust, these potentially harmful gasses are evacuated from the home through the sealed stainless steel exhaust system.

The Myth

Years ago, early tankless heaters could not keep up with the demands of the typical American household and they often broke down. For this reason, they have acquired a reputation for premature failure and inadequate supply. In reality, today's models are a lot more dependable and can keep up with any household's needs if the unit being installed is properly sized. Today's tankless heaters are designed to last 15 to 25 years or more.

As with any type of water heater, the primary enemy of a tankless heater is hard and/or sediment heavy incoming water. All tankless heaters work best when used with a water softener and/or a filtered incoming water supply. As with any type of water heater, periodic flushing and internal cleaning is recommended.

Gas or Electric?

Electric facts: Typically, electric models are used for single sink, or half bath type installations. Or for use in a workshop or cabin.* When in operation, larger whole house electric models can easily consume more electricity than the usage demands of the entire house combined. For this reason, gas models are preferred for whole house multiple bath installations. (If an adequate supply of electricity is available, whole home units can be used. - Typically, these units require 100 to 150 amps of 220V electricity on two or three independent circuit breakers with special stand-alone wiring. Some older and small rural homes are still operating on a "60 amp service." Obviously, the home would need a service upgrade just to power the electric tankless heater.)


Please note: Some small electric units that look like a tankless water heater are actually not. They are tank-type heaters in disguise. These models typically hold about 2.5 gallons of water and this water is constantly kept hot by an electric heating element. In reality, this type of unit is very inefficient. After the 2.5 gallons of hot water is used, it takes quite some time to reheat another tank full. These work for occasional hand washing and can supply less than 2 minutes of hot water.

Bathroom Additions

If you add another bathroom near the garage, a Direct Vent tankless heater can be installed on a garage wall with a short run of plumbing to serve this area. This way, no extensive plumbing modifications or updates to your existing water system are necessary. Your original heater may remain in operation as before and still meet the needs of the remainder of the home.

Small Business

If you operate a small service station, repair shop, store or cafe, the hot water for the restrooms can be supplied by a small tankless unit mounted on an interior wall in the utility room or storage space. This way, the restroom sinks have an independent and reliable supply of hot water and there is no worry about tampering of the unit. A small tankless unit can easily meet the needs of two restrooms that have no showering facilities. In this scenario, there will be a large savings in gas consumption and removing a large tank type heater will eliminate the open flame pilot light and can add additional floor space to the utility room.

Information for "Remote" Users

A lake or deep-woods cabin, campsite, workshop or outbuilding is perfect for the installation of a tankless type water heater. In rural America it is common for a homeowner to have a barn, workshop or tool shed that is some distance from the home. If cold water is plumbed to this building, a tankless unit can supply hot water for showering, cooking, washing vehicles, hand washing, and general cleaning needs. You may wish to install the unit near the sink and in this case a small unit will be perfect and economical to purchase. You may wish to use one that is fired by LP gas and a small tank can be easily installed for this purpose and may easily last the whole season or longer. Just like your outdoor barbeque, you must remember to turn off the gas valve after each use to insure that the LP does not leak away. Some people have large LP tanks for the furnace in the workshop and/or rural home. We have models for this type of gas. Additionally, in a workshop or garage installation there is no open pilot light to worry about.

In fact, we have customers with remote mountain cabins and campsites who are using our EZ-101 model with a small LP tank. Some are getting their water from a gravity feed system via a holding tank or down hill gravity fed delivery system. Some are using gasoline powered pumps to pick-up mountain stream or spring water and deliver it to the cabin via hose or plastic pipe. Our customers never cease to amaze us with their diverse and innovative ways to supply their remote locations with easy hot water for cooking, cleaning, and showering.

(With all water systems used in colder climates, if your outbuilding is not heated, you must address the possibility of freezing temperatures and drain the water system thoroughly each fall.)


*LEGAL DISCLAIMER: We at EZTANKLESS.COM do not make spectacular claims about energy savings, our intention is to provide accurate and all-inclusive information for those who wish to gain a better understanding of this water heating technology. Certainly, a tankless heater is more energy efficient than a large tank type heater, but simple common sense tells us that the way in which each household uses hot water makes calculating actual individual savings virtually impossible. For these reasons, we assume no responsibility or liability for errors or omissions regarding statistics or statements. As with all conservation studies, the figures are only estimates, actual results will vary and may be lower or higher depending on the ways in which these products are used.

Certainly, there are companies making claims that are outrageous and spectacular. Certainly there are companies who will tell you how much you "will" or "can" save. Statements that say "as much as" are no more than hypothetical best case scenarios used to "boast their wares." We certainly accept no liability for assumptions of spectacular claims from other entities being projected onto our products or assumptions that these outside claims apply to anything that our company sells.

Persons researching tankless heaters should take the time to compare the technical specifications of the products in mind. Those which are similar but have much higher claims of savings, efficiency, or faster payback periods must be considered suspect.

Furthermore, all of the above information is based on documents and information that can be easily found within the public domain. We have organized this information on this web page for the convenience of our potential clients and those who have been looking for answers./p>

NOTE: If you are considering a purchase of a tankless water heater with the intention of taking advantage of the tax credits, please consult your accountant or inspect in detail the terms and requirements of federal tax credits. Some of this is unclear at the time of this writing as this was entirely new legislation enacted to take effect in early 2009, some of which has not been thoroughly clarified.

We cannot be held responsible for errors or misinterpreted conclusions from any of the above information.
11 Feb, 2020
Unlike Europe and Asia, where tankless on-demand water heaters are common, in the USA storage type units are prevalent. This type of technology is well developed, understood by most homeowners, but really quite wasteful. In today's world more people are making an effort to preserve our natural resources and conserve energy. Conventional tank type heaters are throw way appliances and their carcasses are clogging landfills nationwide. The average American household spends $400 to $600 per year for water heating, making water heating the second highest energy expenditure behind furnace and air conditioner operation. Today, after 100 years without change, North Americans are beginning to accept new water heater technology. The technology that is familiar to families in Europe, Asia, Central and South America seems new to the average American homeowner. In fact, this technology is now considered "mature". In comparison to conventional tank heaters, tankless models differ in the fact that they do not have a large water storage tank. In theory, on demand type instantaneous water heaters should be the best way to go since there is no energy wasted by heating a large tank of water for indefinite periods of time. These models supply instant hot water in a continuous supply as needed. Sensors turn on the instant heater when a hot water tap is opened, and the unit turns off when the faucet or shower head is closed and the flow of hot water stops. Save up to 50% energy usage with a tankless water heater When you talk about going Green and helping the environment why not save a little money in the process. Instant Tankless Water Heaters can save the average American family $108 a year (source: U.S. Department of Energy). Consider that hot water accounts for 30 percent of an average home's energy budget. Tankless water heaters provide an instant continuous flow of hot water as needed by utilizing a heat exchange coil and water flow switch, eliminating the standby energy loss of a conventional storage tank water heater. The U.S. Department of Energy stated that a gas fired tankless water heater is about 23 percent more efficient that a traditional storage version, which is constantly heating your water 24 hours, 7 days a week. This constant heating of water is called standby energy loss.
11 Feb, 2020
We are trying to "think green" and many of us are buying products that consume less energy. Are economy automobiles and tankless water heaters similar? The ways in which consumers select them are similar and the answer is often "yes".
11 Feb, 2020
Several weeks ago we had the pleasure of talking to a Mr. Jorge Garcia-Bengochea. He came to us asking if we would be able to offer a tankless water heater for use by his charity service - Gentle Carousel. Gentle Carousel brings miniature therapy horses to hospitals, assisted living programs, hospice programs, programs for Alzheimer patients and to adults and children with disabilities so that they may experience a little extra joy in their life. The miniature horses of Gentle Carousel will visit upto 4000 adults and children every year. After hearing of the good work Mr. Garcia-Bengochea is doing, we were glad to offer a helping hand. We sent the Gentle Carousel an EZ 202 for use in their horse washing station. This is the card we received in response.
11 Feb, 2020
Every day someone contacts our company asking us for an electric tankless water heater. What we notice is one common misconception. Almost everyone inquiring about an electric tankless heater wants to install it as a replacement for an existing electric tank-type water heater. We have found that most people are visualizing that they simply mount the new electric tankless heater on the wall and plug it into the pre-existing wiring from their old tank type heater. This is simply not a correct assumption. For an electric tankless heater to supply hot water at the required GPM (Gallons Per Minute), a much larger amount of electricity is required. The amount of electricity required is huge when compared to typical appliances. In fact, an electric tankless hot water heater’s electricity requirements exceed the capacity of the typical American home. To find out the details, please read this report and comparison. We have taken the time to explain these energy consumption needs in an easy to understand way. Early in our research, we extensively evaluated electric tankless water heater technology and chose to focus our efforts on gas-fired models. We decided that our company would not enter into the business of electric tankless heaters for a number of reasons. Without turning this article into a sales pitch, we will point out some of the same facts that resulted in our company’s selection of gas fired heaters as our product line. Simply comparing our popular EZ DELUXE 4.0 GPM model to a similar but slightly smaller GPM capacity electric unit, one can clearly see the differences. (To be fair, we compare our EZ Deluxe to one slightly smaller and one slightly larger electric powered unit. The manufacturer’s specifications of the models used in this comparison are listed on their web site and we presume that they are accurate. However, we did not conduct tests on the specific electric models used in this specification comparison.) As previously mentioned, please keep in mind that not everyone lives in a modern newer home, older homes typically do not have 200-AMP and larger electrical services and modern expandable circuit breaker panels. In fact a 300-AMP service is rare in a residential application. Some older homes have only 100-AMP services and in fact some small rural homes may still be operating on 60-AMP services which were typical before the days of central air conditioning and multiple baths.
11 Feb, 2020
Recent studies show that 20% of energy consumed in a typical American home is from water heating demand. Switching to a tankless water heating system is proven to provide energy savings, lowering energy bills and reducing your carbon footprint. Many homes demonstrate energy cost savings of $150 per year on average. Proper Installation - We recommend you contact your local licensed plumber who is trained to handle electrical, gas, and plumbing and is aware of all gas fuel codes for a proper installation of the EZ Tankless water heater. Having a non-licensed professional install the unit can cause performance and operational issues. Location of Installation - Install on essentially any wall inside your home with our sleek and modern design. EZ Tankless offers a unit for every location. Venting - EZ Tankless offer the most economical and easiest to install systems on the market and we include the standard intake/exhaust components at no additional charge. Our tankless water heaters can vent vertically through the roof or horizontally through an exterior wall depending on the model. Gas Line Sizes and Fuel Types - EZ Tankless water heaters are designed to provide maximum performance and are available for natural gas or liquid or propane fuel types. The units operate using 1/2" or 3/4" gas line depending on BTU rating. Most of our homes units require 3/4” gas line. When choosing the model that suits your needs the best, ask these questions: Will I run out of hot water? Where can I install my hot water heater? Exterior wall? Interior wall? Central location? Do I have natural gas or propane?
11 Feb, 2020
Americans consume, it is what they do! Are American consumers really trying to reduce energy consumption, or is this just another false start like the oil crises' of the 1970s? We have all heard about the "American consumer". Why Americans are called "consumers" is simply because they consume everything they can find, and typically in a very big way. After all, consuming is the "American Way" and this includes oil, electricity, water, and natural gas. Often they consume in ways that are in fact shameful. But Americans don't care, they can consume as much as they want and nobody can do anything about that. It is the right to consume that drives the American economy. Or is it? With the $4.00 per gallon gasoline prices of 2008, Americans were suddenly dumping their big cars and SUVs and in a few months they had purchased millions of little automobiles with small fuel efficient engines. With a typical American knee-jerk reaction to high gasoline prices, Americans are buying these same little cars that people the world over have been using for decades. For more than half a century Europeans and Asians accept these same small cars as they have dense cities with not much available parking space and traditionally pay two or three times as much for gasoline than drivers in the USA. In late 2008 the U.S. Government instituted the "cash for clunkers" bill which paid new car buyers a discount at the dealership up to $4500.00 if they traded-in their gas guzzler for an economy model. This was designed to help the struggling auto industry and reduce the need for imported oil. So, what else is new on the energy saving subject? Tankless water heaters! The typical American will ask; what is a tankless water heater? Another way in which Americans waste energy is the ways in which they heat hot water. As usual, Americans have procrastinated until they are the last culture on earth to change their wasteful ways. Fifty years after Europe began to use tankless hot water heaters this technology has finally entered the minds of some American homeowners. After 100 years without change, Americans are slowly beginning to accept new energy efficient water heater technology. For America, today's flavor of the month is to "go green". This and a substantial tax credit for "green" devices are driving the rapidly expanding USA market for eco-friendly tankless water heaters. The large storage tank type water heater in the typical USA home is a big user of energy. The average American household spends $400 to $600 per year for water heating, making water heating the second highest energy expenditure behind furnace and air conditioner operation. Like the $4.00 per gallon gasoline prices of 2008, it seems that only a slap in the face can awaken the typical American from their wasteful ways. Again the U.S. Government steps in to stimulate (pay) Americans to reduce their energy consumption. This tax credit incentive took effect in February of 2009 and offered a substantial Federal Income tax credit to get the attention of the public and news media alike.
11 Feb, 2020
So maybe you have a flex-fuel or Gasoline-Electric hybrid vehicle in your driveway, maybe a compost pile in your back yard? You’ve insulated the house, installed the thermal-pane windows, and may even have a newer energy efficient furnace. Now that you are warm and cozy and “feeling the green” are you still heating a big tank of hot water 24/7/365? If it is a gas tank type heater, did you know that not only are you wasting gas by heating hot water constantly, but you are drawing heat from your home via the draft type exhaust pipe. Maybe you need a tankless hot water heater to complete your green home? “A gas-fired tankless water heater, what is that? Please tell me more?” In Europe and Asia tankless water heaters are the norm. In the United States, homeowners are more familiar with tank storage type water heaters. Today more and more families are making an effort to conserve energy and preserve our natural resources by switching to tankless technology. Primarily, tankless models differ from the typical large cylindrical heaters because they have no storage tank. On demand type, instantaneous tankless water heaters are better as no energy is wasted by pre-heating and holding a large quantity of water in reserve for future use. Tankless heaters produce almost instantaneous hot water in a continuous supply on demand. “How does a tankless heater work?” Sensors inside the heater detect that a hot water tap (faucet or shower) has been turned-on and the heater begins to run, making hot water that exits the heater into the hot water pipes leading to the faucet, sink, or shower. When the faucet or shower is turned off, the heater shuts down and the flow of hot water stops. Modern gas-fired tankless heaters don’t even have a pilot light! They have automatic electronic ignition to save even more energy. “So they save energy. Are they better than a tank-type water heater in other ways?” Tankless heaters can supply a larger total volume of hot water than a tank water heater. The reason is that a tank type heater has only a certain total capacity available. Tank type heaters are sized by their reserve hot water capacity in gallons. Typically only 30, 40 or 50 gallons of water is stored and if you exceed this capacity you must wait for another full tank to heat which can take several hours on some models. With a tankless heater, you have an endless supply of hot water for your needs. The way in which a tankless heater is sized is by its capacity to provide hot water at a specific GPM. In the USA, the volume of water flow is measured in GPM (Gallons per Minute) When a large volume of hot water is needed, more than one tankless heater can be joined together in a group and work in unison. For a tankless heater, the important thing to remember is how to properly size the tankless heater unit to the needs of the household or business in question by calculating your maximum peak GPM needs. “Please tell me more about GPM and how to properly size a tankless heater?” As previously mentioned, tankless water heater manufacturers size their heaters via GPM specifications. Often this is also included with fine print about the temperature rise. If your groundwater temperature is 45 degrees, and the manufacturer advertises that the heater can supply a temperature rise of 60 degrees at 4.0 GPM. What this means is that the output temperature of the water coming from the heater will be 105 degrees at a maximum flow of 4.0 Gallons Per minute. Tank type heaters are sold as total gallons held in reserve in the tank. For example, a typical tank type heater may hold forty gallons of water. Comparing a 4.0 GPM tankless water heater to a forty gallon tank type heater is possible. For example, if a tankless unit produces hot water at 4.0 gallons per minute, this rate of flow will run a 40 gallon tank type heater out of water in only ten minutes. “Please tell me about the latest evolution of tankless water heaters. Because several years ago, I was told they were not very good.” It is a fact that the early models of tankless heaters sold in the USA years ago were small and could not meet the needs of a typical household. (Especially the electric ones.) They were primitive and often broke down. Sometimes the homeowner had to wait for a visit by a qualified technician and then parts were needed and had to be ordered. Because of these experiences of years past, tankless heaters had developed a reputation for malfunctions and an inadequate supply of hot water. Today’s models are designed to last fifteen to twenty-five years, and are much more reliable. If the unit being installed is properly sized to meet the needs of the home or business, and properly maintained, it will supply reliable continuous hot water for many years to come. “Is there a down-side to a tankless water heater?” The biggest enemy of any water heating device is hard or sediment filled incoming water. (For example, as you may have experienced, this is the leading cause of failure in coffee makers) As with any type of water heater, the tankless varieties also work best when used with a water softener or at the very least a filter installed on the incoming water supply. Just like a tank type heater, manufacturers of tankless models recommend diligence in performing periodic flushing and internal cleaning as recommended. The interval period for this maintenance depends on the hardness of the water and the type of filtering and/or treatment being done to the incoming water. Learn more about properly maintaining a tankless water heater. In addition, households with well water will need to address the need for a more constant water pressure. Well pumps cause fluctuations in pressure that can confuse the internal control devices of a modern tankless heater. Find out more about using a tankless water heater with well water. “I have been told that the exhaust for a tankless water heater is special. Is this true?” The exhaust on a tankless heater is much different. Most of today's models use forced-air ventilation or are direct vent. (Direct vent is also known as "balanced" or "dual chamber" exhaust-intake) Because of much higher exhaust temperatures, stainless steel pipe designed for this purpose is always used. This is an important part of any indoor installation and is a requirement of industrial, local and national safety codes. This type of pipe has special sealed joints. This pipe is not the same as normal water heater or furnace exhaust pipe and the components do not interchange. With this type of exhaust the gasses are forced outside under pressure, not by a natural updraft as in a tank type heater. American homeowners are now accepting tankless water heaters as the wave of the future. The average American homeowner is just now finding out about this technology when in fact, people in other countries around the world know of no other way to heat water. “If I buy one now, will it be obsolete in only a few years?” More than ninety percent of the manufacturers of tankless water heaters are based in Asia. These heaters are built in modern new factories operated by companies that have been building millions of tankless heaters for decades. At this time, it is our understanding that there are no gas-fired tankless heaters produced in North America This is not new technology, it seems new to the typical USA homeowner because we are just now becoming aware of how much energy they save. These days, as a society we are beginning to change our wasteful ways and try to save energy. But as a homeowner, we are not only trying to save energy, but to also reduce our energy expenses as well. These new modern direct vent tankless water heaters have evolved to the point where the USA federal government has declared this technology "mature". What this means is that little future change is expected in these devices. They have reached a level of development where they are about as energy efficient as they can be and the design seems to have peaked as well. In fact, generally speaking most direct-vent heaters from all manufacturers are basically the same design. And in fact, some of the big-box home improvement chain stores are selling tankless water heaters under several different brand names that are in fact identical and produced in the same Asian factories. For some popular models, only the labels, brand names, and retail outlets differ.
11 Feb, 2020
A brief explanation of soldering pipe for a tankless water heater installation. Jesse Wellenstein was a professional trials bike rider sponsored by EZ Tankless co-founder Jim Snell and his company, Rising Sun Imports, Inc. After winning a couple national championships and still not gaining the popularity one would expect, Jesse retired to plumbing in his home state of Illinois. In this video Jesse demonstrates the proper method for soldering copper pipe pieces together. If you pay enough attention, you can also learn to make a set of your own tankless water heater service valves. -- The EZ Tankless Team Video shot were taken 09-26-2009
11 Feb, 2020
The guys at EZ Tankless would like to introduce you to the new EZ 202! The EZ 202
11 Feb, 2020
Mike from EZ Tankless discusses how to flush your tankless water heater with the help of service valves. Flushing your tankless water heater is the most important maintenance practice for keeping your tankless water heater in running order. Flushing your heater can expand its lifespan by many years, and in some cases can help your heater to last a lifetime. In this video we demonstrate how to flush your tankless water heater with the help of tankless water heater service valves. These valves are available from our website, your local major hardware store, or you can build them yourself. You can flush your heater without the use of a valve set but it will require disconnecting water to your unit, which in some cases can be more of a burden then the extra money for the service valves. -- The EZ Tankless Team Video shots were taken 10-01-2009
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