These units offer you lower operating costs and many years of constant hot water supply. With traditional tank water heaters, you tend to pay more on your electricity bills, because these units tend to keep hot water at hand. But tankless units heat water as and when required. SO, you save money on your utility bills. These units occupy less space because of their compact size; they can be fitted under the kitchen sink; inside a cabinet or anywhere else when space comes at a premium.

Considerations When Buying A Whole-House Tankless Water Heater

There are two types of tankless water heaters: on-demand or point of use and whole-house units. Whole house units are larger in size than point of use and have the capacity to heat water for supply to more than one water supply points like the kitchen sink, dishwasher, and shower faucets in two bathrooms. This makes a whole house tankless water heater a more energy efficient way to heat water. That being said, it’s also important to understand that a tankless unit isn’t energy efficient for everyone. For ex: if you live in a cold climate, where the ground water temperature is very low, your tankless water heater will require more fuel – electricity or gas – to heat the water, thus leading to higher utility bills.

Therefore, depending on the temperature of ground water in your area, you will have to decide on the fuel type. This is an important decision and must be taken with care and complete understanding. So what do you need to consider getting it right?

1.    Do you want an electric, gas, propane, or solar water heater?
2.    What types of tankless water heaters are available in your area based on the fuels?
3.    Does the whole house tankless water heater you want to install, confirm to the local building, electrical or gas codes, besides being compatible in your home?
4.    What is the quantity of hot water you need on a day to day basis?
5.    What is the temperature of ground water in your area?

Most whole-house tankless units are designed to ensure enough supply of water to 2-3 bathrooms besides other uses. But it wouldn’t hurt to ask the specifics on capacity. While electric units are more economical than gas; they may not be the most efficient as gas/liquid propane are readily available almost everywhere in the U.S. However, if you will be installing a gas tankless water heater, you will need to make adequate arrangements for ventilation.

Finally, it must be said that despite the fact that the cost of installing a whole house tankless water heater by an expert may be more initially, the unit will pay for itself quickly, due to its lower operation costs. Also, you mustn’t forget that a tankless unit has a longer lifespan as compare with a storage unit, thus making it a solid investment!

Top Whole House Tankless Water Heater Models

Paloma Tankless Water Heater (PTG74PVN) Indoor, Natural Gas
Price: $1,129.00

Unit Features

1.    Small size
2.    Electronic ignition
3.    Remote control thermostat

Description

1.    Natural gas powered
2.    7.4 gpm at a 45ºF temperature rise
3.    Electronic ignition increases efficiency
4.    Thermostat remote controlled
5.    Digital temperature display
6.    Built-in electric blower to push exhaust gas outside
7.    Low NOx Burner is environmentally friendly
8.    5-years limited period warranty on parts and 12-years on heat exchanger

Rinnai R75LSiN Natural Gas Tankless Water Heater
Price: $898.98

Unit Features

1.    Plenty of hot water flow
2.    Commercial-grade heating element
3.    Energy Star compliant

Description

1.    Top selling and performing unit based on price and fuel (natural gas)
2.    Plenty of hot water for 2-3 bathrooms
3.    Easy to install
4.    Heavy duty heating element
5.    5-years limited period warranty on parts & labor and 12-years on heat exchanger
6.    Also available in liquid propane

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Paloma’s top digital line of products are made to pass the strictest emissions standards in the nation. One example is that their products meet the strict standards of the South Coast Air Quality Management District of California.

Because Paloma tankless hot water heaters don’t have tanks, there is no mineral deposit build up in the unit, and the materials used are of the highest quality.

Because of their long life, and compact design, they won’t end up in a landfill, adding to the waste in our country. This also saves you money, since you don’t have to buy another water heater for many years to come.

In these time when we are all trying to save money, Paloma offers their products at a price that is affordable. Compared to tank style water heaters, inline heaters made by this company are very reasonable, and there are many different advantages.

Paloma tankless water heaters will save you much money over the long haul. There are many different models to choose from, for both residential as well as commercial applications.

Paloma Remote Controlled Water Heaters

Not only does the Paloma have accurate digital controls, that are easy to use and read, all of their tankless hot water heaters come with a detachable remote controller, and you can even add two more for a total of three controllers.

Why would you need remote controllers? You have a thermostat for your home’s heating system that is in a convenient location right? Yet you still go downstairs, or in a closet to change the setting on your water heater.

Why? You can install the remote for you water heater anywhere you want, and with more than one, you have more convenience, and safety. If your spouse just got done taking a shower, and had the temperature high, you can turn it down right in the bathroom as you are getting small children ready for a bath.

Paloma Warranty

Paloma tankless water heaters offer a great warranty for their cost. On the copper heat exchanger a 12 year warranty is offered.

Recommended Paloma Tankless Water Heaters

The Paloma PH6 tankless hot water heater is a smaller unit than most models produced by this company, and runs on natural gas only. It does not have the remote controller, but because of it’s small size, it is ideal for work shops, stables, and your office, so it really doesn’t need one.

The Legacy 6 will provide water at 70 degrees above regular water temperature at 1GPM, or one hundred degrees at .7GPM. It adjusts the water flow without modulating the combustion, giving you consistent water temperatures.

You can easily turn off the pilot when you aren’t using it, so this is the most economical heater for remote applications. This unit costs just under $600.

The PH28RIFS Paloma Residential indoor tankless hot water heater comes with a lot of features. It does include the remote controller and extra remote options. It can also be connected to another unit using a DUOnex connector cable.

This model also has electronic spark ignition, so there isn’t any pilot light. It has freeze protection down to minus 30, and a draft back flow prevention device as well. It includes a ten foot 120v power cord, and wall mounting hardware.

Now, here are some unique safety features, only found on this system. It is equipped with an Oxygen depletion system, for the indoor model, which constantly samples emissions from the burners, and if it detects a build up in carbon monoxide, it will either adjust the exhaust fan, or should the burner down completely.

The other feature is the Film Type Overheat Sensor. Waiwela senses high temperatures in all position around the combustion area, not just one, like many other manufacturer’s do.

These two features, plus all the extras, make this Paloma tankless water heater an ideal unit for all residential applications, and costs just $1120 retail, but can be found less at some online dealers.

While you can find Paloma tankless hot water heaters at some retail outlets, for the best selection and price, check the Paloma website and other popular online shopping portals.

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Takagi hot water heaters also have one of the highest thermal efficiency rating in the industry, a whopping 92% with natural gas, and 95% with propane.

With 15 years on the American market, and over fifty in Japan, Takagi in a leader in the industry. With direct venting that uses PVC instead of metal, and a zero clearance rating, you can put one of these units just about anywhere.

With the advanced T-K3, you can also link up to four Takagi tankless water heaters with just one controller.

Takagi has been on the forefront of advanced technology in tankless water heater design, from advanced components, user friendly controls and easy compatibility, they have advanced features that no one else can say.

They are reliable, because they are simple, and they are durable because they go through the most extensive testing around, and use commercial grade materials, in or the to make products for heavy use.

Safety Of Takagi Tankless Water Heaters

With Takagi, there are many product innovations that focus on safety features, and this company provides the peace of mind that you product will be safe and reliable. All of the units are factory set at 122 degrees, providing a safe temperature, that is also comfortable.

All products use the safest venting possible. Venting is sealed from the top of the unit itself, all the way to the outside, and includes an exhaust fan that fully expels all gases from the unit.

Monitoring devices make sure the unit is functioning properly, and miniature computers monitor the unit so you don’t need to. With Takagi tankless water heaters, there is no pilot, so it is safe even in an earthquake.

All of their products are certified by three different agencies, the NSF, the CSA, as well as the ASME. These associations have deemed all products manufactured by Takagi to be safe for residential as well as commercial applications.

Takagi Going Green

This is not just a concept for Takagi tankless water heaters, but a standard in all that they offer. The have been ISO certified, have won many awards from the U.S. Green Building Council, of which they are a member.

They are also partnered with EnergyStar, a world recognized leader in energy efficiency. They have a stand by wattage of just three watts, and offer from 30-50% reduction in CO2 emissions.

Recommended Takagi Tankless Water Heaters

The Takagi Jr. TK-JR-P tankless water heater uses propane and is just twenty inches high, and weighs just forty pounds, and is the most compact of the Takagi line. It will not only produce an endless amount of water for smaller homes, but also provides radiant heat as well.

This compact unit uses all the same technologies and it’s larger brothers, but on a small scale. While using propane, it is also available in a natural gas model as well. This unit is priced at just under $600.

Another model for small residential applications is the Takagi T-K3-NG whole house inline hot water heater, which can be mounted inside or out, and even comes with a recessed case so it can be mounted in between wall studs. It is only 13.8” high, and weighs just 40 pounds.

It also features a built in power venting system, that requires a category III venting, or caps. This unit starts heating water at just .5GPM and can keep water at the right temperature even at a maximum rate of 7GPM. This unit also has four different temperature settings, from 113-167 degrees.

This model is not linkable to other units, or vent convertible. This unit sells for $1054.68.

The Takagi T-K3-OS is the best selling outdoor model for residential applications. This model is built for just outdoor installation, but does not require any additional ventilation, making it easier to install.

Because it is made for the exterior, it makes it great for warmer climates. It does have built in power venting, but doesn’t require anything else.

This Takagi tankless water heater has a thermal rating of 83%, and may be used with natural gas or propane making it very efficient and clean burning. This unit has the same adjustable settings, and GPM requirements. For an exterior unit, it is very reasonably priced at just $881.76.

You can purchase products directly from the Takagi website, or from other online retailers. For a broader selection of Takagi tankless hot water heaters, it is better to buy online then from local retailers.

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For one thing, Rheem has a water heater for just about any application you can think up. They can be used in residential situations, either as a whole home heater, installed as the construction is going on, or while you are putting a new addition on.

Rheem tankless water heaters can be found in many vacation homes, even with altitudes that are up to and even over 9,000 feet, where the water table temperatures are very cold, even in the summer.

If you are a business that uses a lot of hot water, then the Rheem is the way to go as well. Rheem inline hot water heaters are unique, not only because the provide up the 180d of hot water over an extended period of time, but you can operate more than one unit at the same time with their EZ Connecting manifold system, to piggy back units, and produce either more heat, or operate more applications at once, up to twenty at a time.

Don’t worry about their individual operations because they can be synchronized to operate solely from one unit and one remote controller. Speaking of remote control – there is a convenient thermostat for raising or lowering the ambient room temperature, usually conveniently located on the main floor.

How many times have you wished you didn’t have to go down into the basement when you wanted to turn the heat up on you water?

With the Rheem tankless water heater, you can adjust the controls easily without having to trudge down into the basement, or opening a closet door. Rheem utilizes a modulating controller on the unit itself, as well as a remote control, which you can install in any convenient location.

One of the problems with most inline water heaters is that they can only be used for one, maybe two applications at a time. What happens if you need to operate three appliances, or two appliances and a shower, or two people want to take a shower at the same time?

Your water, while warm, isn’t going to be as comfortable as you want it to be. With Rheem tankless water heaters, this is something you never have to worry about.

Rheem gas water heaters are available in different sizes and capacities, for what ever your needs happen to be. If by some chance you need even more applications, you can attach two units or more together to work in tandem for even more output.

Recommended Rheem Tankless Water Heaters

The tankless hot water tank 53 Indoor Direct Vent Series can supply you with all the hot water you will need for up to two bathrooms, and supplies water at 5.3GPM.

Features for this series include the UMC-117 remote control which can be used right away, with adjustment setting from 120-140 degrees. If you need an extra controller, you can simply order another one separately. This model is also available in an outdoor unit as well.

The Tankless 66 hot water series is available in an indoor as well as outdoor models, and is ideal for 2-3 applications at the same time, with an output of 6.6 gallons per minute.

There is also the 74, an outdoor Rheem tankless water heater with an almost seven and a half gallon output, and the 95 indoor series with a 9.5GPM output.

While all of these models vary in price, none of them cost over $1,300, with many models well below $1,000. there are many features that come standard with all models, including the remote controllers.

Some of the other features include their compact size, many that are no bigger than a standard medicine cabinet. Because of this, they take up much less space that other tankless water heaters, which leave plenty of room for storage, or even water softeners if needed in your area.

Just because of their small size, don’t be fooled. There are sophisticated technological advances that make the size smaller, but offer more features and benefits.

There are user friendly temperature controls, status monitoring, and if any maintenance is required Rheem tankless water heaters also have self diagnostic capabilities.

Every Rheem water heater has a substantial warranty. You get a 12 year heat exchange warranty, five years on all other parts, and on year on labor. Not many other brands of tankless water heaters can offer all these features and warranty.

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While Titan company has only been in business for a relatively short amount of time, since 1986, it has proven itself to be a leader in the field of water heater technology.

Titan tankless water heaters are found in apartments, homes, and businesses here and abroad. The Florida International University has their tankless heaters installed, as well as many hotels, including the Holiday Inn, Plaza San Martin, and the Romada, just the name a few.

You will find a Titan tankless hot water heater even in large homes, with three to four bathrooms. This company makes products that can supply hot water for two to three different applications at a time, when water reduction products are also installed.

Some of these can be low flow shower heads, as well as water restrictors. 1 and a half to 2 gallons per minute is enough to keep at least two different applications going at the same time.

Titan is company whose products are made in America, by hard working people just like you. Every unit is built here and tested here, so when you buy one of these products, you know that you are putting your money where it counts, right here in the United States.

So you get the quality you trust as well as the peace of mind that your product will last a long time. Their engineers also collaborate with workers at NASA, to bring space age technology to water heating.

This means that high speed electronic circuitry is integrated into some of their newer products, such as the Titan SCR2, which is available right now for you use.

Not only does the Titan tankless water heater employ the latest in electronics but the system is also easy to control and use. Because this company only focuses on electric water heaters, they can devote their workforce into developing the best products for the lowest costs.

Cost, plus quality is one of the most important parts about owning a tankless water heater. With the Titan brand, not only are their products priced well below other manufacturers, but they outlast the more expensive brands, and have a lifespan of over twenty years.

This means that when you buy their products, you don’t have to worry about having to replace it in ten to fifteen years. So not only will you see an energy savings up to 60%, but you will also save in replacement costs.

Recommended Titan Tankless Water Heaters

Titan makes two different styles of products, one, the titan SCR2 series, for warmer climates, and the Tempra Series, for areas where the annual groundwater temperature falls below 60 degrees. Both lines of products are quite reasonably priced.

The SCR2 N-120 Titan tankless hot water heater it just right for area where the ambient water temperature is above 65degrees, and can provide enough hot water to supply 2-3 bathroom homes.

It has a variable temperature rise, with 81 at 1 gallon a minute to 20 at 40 gallons a minute. It uses half inch water connections, and a maximum PSI of 150.

It’s minimum activation rate it .5GPM, and uses a standard 240V electrical outlet. This unit is very popular and versatile, and costs just $279.99

Other products in the SCR2 series include the N-64, which also costs the same price. This unit has a temperature rise of 44 degrees to 11 degrees, and is recommended for applications over 70.

It too uses the standard 240 outlets. There is also the N-160 priced at $479, the N-100, at $279, and the N-85, also at $279. these models all com with a one year unlimited warranty, and a ten year limited warranty.

The Tempra Series has seven different models to choose from. The basic model, the Tempra 12 Stiebel-Eltron tankless hot water heater are for homes that have a high demand, but use on application at a time with low flow rate.

It can heat up one gallon per minute at a rise of 82 degrees, all the way up to 4GPM at 20D. It uses the same standard system requirements as the Titan series, as well as has the same manufacturer’s warranty. This unit costs just $545.

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For one thing, while many brands make gas hot water heaters, Bosch make both gas, and electric models.

Bosch tankless water heaters systems are also not only of the highest quality, but are also one of the least expensive brands on the market.

But just because they cost less, doesn’t mean they are inferior to other brands, in fact, in many cases the opposite is true.

While many brands offer energy saving up to around 40%, Bosch’s products offer a saving of up to 50%. That means cutting your water heating bills by half, sometimes more depending on use.

Their product last longer than twenty years, and were the first company to offer one of the longest warranties in the industry. They offer a full 12 year warranty on burners and the heat exchange on all of their AquaStar models, and if your fails through normal use, will not only replace it, but this also includes labor as well.

Bosch also offers more variety of models than other companies. Not only do they offer whole house tankless or inline water heaters, but they also offer point-of-use models.

These mini tankless heaters can be installed wherever they are needed, and are a great addition to their whole house models, when you need a little extra boost of hot water. They can also be installed on hot tubs, and jacuzzi spas so you don’t have to draw off of the house applications.

Because they also offer electric inline water heaters, if you are trying to be off the grid, with no reliance on utilities at all, Bosch is the way to go. With these high efficiency electric models, and the reasonable price, you can install a Bosch tank wherever you need to, with minimal effort.

Because Bosch is manufactured strictly for the U.S. Market, you don’t have to worry about it being compatible with your alternative energy system.

Recommended Bosch Tankless Water Heaters

The Bosch AE 115 Powerstar 2.6GPM indoor whole house inline water heater is recommended for climate where the annual groundwater temperature is above 60degrees. It will provide 2.6 gallons of hot water a minute, enough for one job at a time.

This unit requires a minimum of 150 amp circuit, but gives an average efficiency rating of up to 90%. Because of it’s small size, it come mount on the wall saving valuable floor space.

Powerful, yet compact, these models sell for just $508, but can be found at some online retailers for just under $450.

The Bosch AE 125 PowerStar 4GPM indoor electric tankless hot water heater is ideal for full home usage, where you are using one appliance or shower at a time. This electric model is also for annual ambient water temperatures below 60 degrees, so they can be used in colder climates.

It delivers four gallons of water per minute, and has an average efficiency rating of 94%, far more than other models of the same capacity.

It includes a solid copper heat exchanger, and this unit is only 15.5″x15.25″x4.5″; and weighs just 22 pounds. This unit retails for just under $800, but can be found for $539.

For a little extra hot water wherever you need it, then the Bosch AE-12 PowerStar 2 GPM Point-Of-Use electric indoor tankless water heater is your answer. This unit is small enough to mount just about anywhere, and can even be installed on it’s side.

At just 12.25″x6.5″x3″; and weighing just under five pounds, this unit still puts out a lot of heat. It has an external temperature controller, a copper heat exchanger, and a durable plastic housing.

It also has a thermal shut off for your safety. This Bosch tankless water heater can be used in either cold or warmer climates. This unit sells for just under $300.

Now just to be aware, not all of these models come with the twelve year warranty, and it is a good idea to go to the Bosch website to find out which models have the longest warranty, and what other restrictions apply.

While you can find Bosch tankless hot water heaters at some retail home improvement retailers, if you want the best selection, prices, and special deals, you should just buy from dealers online.

You can buy through outlets like Amazon, or through the Bosch website, and you should check for free shipping. If you need your unit quickly they also offer one day shipping options as well.

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Noritz offers outstanding service, the latest in technologies, and customer satisfaction, and they have grown by leaps and bounds.

Not only do the provide quality products that will give you years of use, but the Noritz tankless hot water heaters are made with the planet in mind.

For one, Noritz has the largest selection of tankless, or inline hot water heaters that have some of the highest EnergyStar ratings possible.

This company also helps the environment in other ways, they make all of their units with recyclable materials, and parts that are replaceable, rather than having to toss out the whole unit when on piece wears out. This reduces the over 7 million tank style water heater that end up in land fills every year.

That’s not all, the reduction in emissions and contribution to green house gases could also be reduced if every household would switch over to a tankless hot water heater. The reduction in CO2 alone would be like taking almost 7 million vehicles off the road.

So as you can see, buying a Noritz tankless water heater can not only reduce your utility bills, but also help do your part to save our environment.

Why buy a Noritz over another brand?

There are many different reasons. The biggest components to a tankless water heater are the burner and heat exchange, the heart of the system. How efficient, durable, and how well they perform, depend largely on the quality and technologies used in these components.

Instead of using just one flame burner, Noritz utilizes two burners instead, not only heating the water running through the system faster, but the second row also captures and burns and left over gases that have escaped from the first, reducing emissions, stabilizing water heat variations, and boosting flow rate.

They also use a commercial grade heat exchanger, which is the main component that takes most of the abuse from the heater.

Recommended Noritz Tankless Water Heaters

Nortiz has many different models and capacities of tankless water heaters to choose from, and are available in both natural gas, and liquid propane models. They also come in different water flow capacities.

One of the basic models is the Noritz 7.5GPM Tankless natural gas water heater. The 631 series is ideal for homes that need to supply water for three different applications.

When sized properly, the 631S can supply a steady output of hot water to run all of these at one time. It is compatible for both outdoor, and well as indoor uses. It has a 180,000 maximum BTU, at the 6.3GPM minimum output. This Noritz tankless water heater sells for just under $900.

The Direct Vent Propane model N069M DV LP model can be safely used indoors, and is used with an indoor wall hung direct venting system, for maximum safety in mind, this unit can be adjusted from 25,000 to 194,000 BTU’s, and has an output of up to almost 8GPM. It has adjustable heat settings, a 74 watt freeze prevention system for exterior mounting, and sells for $1,299.

Some homes may need more water capacity than others. Whether you have more than two bathrooms, or like to run multiple applications at one time. Noritz also has large capacity tankless hot water heaters for this purpose as well.

One of them is the Noritz ASME Natural Gas Heater with a 9.3GPM capacity. It is ASME certified, uses natural gas and still has a thermal efficiency rating of 84%. This unit sells for just under $2,000.

This Noritz tankless water heater with 9.3GPM capacity is one of the first products offered that is made with commercial grade components and materials. It also has a redesigned heat exchange, duel burners, which will boost powern while lowering minimum flow requirements.

This unit is for outdoor use, and is ideal for most commercial applications. This product sells for $1,660.

Noritz also provides great warranties on all of their products as well. For residential heaters, there is a 12 year heat exchange replacement, and a five year replacement warranty on units for commercial applications.

For all other parts, there is a five year warranty, with one year of approved labor.

Since Noritz tankless water heaters are high-capacity performance water heaters, Noritz wants to insure that their units will be installed by a professional for proper installation – so they do not sell in retail stores.

This will also help protect your investment, since the warranty will be void if their units are not installed by a licensed contractor.

To find a professional installer, go to the Noritz website and look for “Find An Installer” option in the left navigation menu.

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They specialize in gas units, and these units are designed with the latest in heater technology.

A Rinnai gas fired inline water heater can save you over 30% on your energy bills.

They are compact, use a standard electrical outlet for the electronics, and all models have a high energy factor rating as well as thermal efficiency.

There are many different models to choose from, but every Rinnai tankless water heater comes with these standard features.

Endless hot water, and a savings up to 40%; this means that operating and heating costs are much lower than any tank style water heater. An estimated yearly cost a forty gallon electric tank heater is $492, with a gas mode the same size, $281, and with a Rinnai, just $223 a year.

There are many different installation options with the Rinnai tankless hot water heater; under the sink, near the bathroom, and in the laundry room are just some of the places you can put these compact models.

It’s commercial grade heat exchanger provides hot water, at consistent temperatures for as long as it is in use. There is much less risk of flood damage over other models, simple because there is no tank to leak.

Rinnai tankless water heaters have digital controls that offer more price control over temperature, they have an automatic shut off system when the unit is on stand-by for safety and comfort, as well as expanded energy savings.

All their models have a limited twelve year warranty on the heat exchangers, but you probably won’t have to worry about it because these unit have at least a 20 year lifespan, twice that of many regular tank water heaters.

Recommended Rinnai Tankless Hot Water Heaters

The Rinnai R75LSip LP Gas Indoor Tankless Water Heater is their least expensive models, and yet provides so much. This unit is ideal for home with up to three bathrooms, and delivers 7.5GPM of water, saving money and energy.

It can mount in any room of your house, and vents directly outside by either a roof vent, or single wall penetration. It is recommended for LP Gas, and is for indoor installation.

This Rinnai tankless water heater not only meets NOx emission standards for both Texas and California, it has a propane energy factor of .82 and qualifies for the Federal Tax Credit. It’s integrated MC-91-1 digital controller has and error code indicator, and a range of temperature control from 98-160 degrees.

Not only does this model also include the 12 year heat exchange warranty, but also has a five year warranty on parts, and one year on labor. You can buy this unit from Amazon for $820.

The Rinnai R531I is also a gas fired tankless hot water heater, and can run more than three different applications at once. That means you can take a shower, run the dishwasher AND the clothes washer all at the same time if you want, without worrying about the water cooling down.

The R531I Rinnai tankless water heater has a minimum input of 15,000 psi, and a maximum of 180,000. it works with a standard out let as well, and can operate on either natural gas or liquid propane. It has an energy rating of 82% with a thermal efficiency of 84%. this unit sells for just under $900.

At just over $1,000, the Rinnai R94LSiN Natural Gas Indoor Tankless Hot Water Heater, is great for large capacity households. It can run five different applications at once, and has a flow rating of 9.4GPM, but still has up to 40% savings on energy, in one small package.

It has a integrated condensation collector, EZConnectTM, which gives it the capacity to link two units together. It too has the same electronic controls as the other models, as well as warranties.

So as you can see, purchasing one of these Rinnai tankless water heaters can not only give you a continuous supply of hot water for all of your needs, but also will save you a great deal of money over conventional hot water tank heaters. Tankless, inline water heaters can provide years of use, are practically maintainance free, and provide a virtually endless supply of hot water.

You can either order Rinnai tankless hot water heaters from discount websites, as well as directly from the Rinnai website. You should check each site for shipping charges, and other policies regarding warranty guarantees, as well as any returns or services in your area.

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It is far cleaner burning than many of the ways that electricity is produced, and heats up faster than electric tankless water heaters. This means the recovery and the heat rise in water tanks is much higher than electric models.

Unless you are using some kind of alternative power source, like solar or wind, this is the smartest way to go.

How are gas tankless water heaters different from the old style models, using a large water tank?

For one, they don’t use a tank to store water. They are much more energy efficient, because you are not using energy to heat water even when your not actually using any hot water.

With the old style tank heaters, water is heated whenever the temperature drops, and it takes awhile for the water the heat back up. A gas tankless hot water system works differently.

Tankless water heaters, or inline heaters as they are also commonly referred too, heat the water by a coil inside the unit. The outer coil is the water, the inner part is the heating element.

It operates like this. When you turn on your hot water tap, or use a hot water application, the inlet valve opens and the water flows through the unit. This valve also triggers a censor, which turns on the gas heat.

As the water flows through, it is heated up to the right temperature, and comes out hot. It is hot as long as you need it, and doesn’t run out like those tank heaters, that need hours to heat back up. When you are done using it, the valve closes, the censor turns off the heat, and it waits for your next use.

Why Use Tankless Gas Water Heaters

Some may ask if these tankless gas water heaters work better. Yes they do, and in fact, because of their smaller size, they can be installed almost anywhere.

While some may say that it takes longer for the water to get hot, in reality it doesn’t take any longer than a regular tank heater, because the tank heater is usually in the basement, far away from where it is needed.

With the inline heater, you can put it close to where you are going to use it, like under the kitchen sink, or in a cabinet in the bathroom, or right next to your washing machine.

Because they only work when needed, they are much more energy efficient. This is ideal in the world today, when we are all thinking about how to use less energy, and save the planet.

Because natural gas and propane burn much cleaner that other fossil fuels, they don’t pollute our environment nearly as much as coal, and petroleum products that are used to power electrical plants. There are many ways that using a gas tankless water heater is much better than electric, or the tank heaters.

Because of the availability of natural gas and propane, you can easily change you system over to gas. Even if you live in a rural area, chances are there is a propane company near you.

In many cases gas and propane companies offer many incentives to new customers. Whether it is installing gas or propane into your home, or in the case of propane, letting you use the tank for free, you can get converted to gas fairly quickly, and for very little money out of pocket.

Some may ask if a gas tankless water heater is more expensive than conventional models. Many tank heaters cost around three hundred dollars for basic models.

Gas inline heaters start at around four hundred, depending on where you buy them, but if you take into consideration the energy you save, then they really are not only comparable to regular water heaters, but less expensive in the long run.

You may find them at local home improvement retailers, but these are going to be far more expensive than by going online. There are many websites like Amazon.com as well as ordering directly from manufacturers like Bosch, Noritz, and Rheen, and these companies don’t charge shipping in most cases.

So if you are truly trying to conserve energy, you should really purchase a gas tankless water heater instead. You will find that over the long run, you will be very satisfied with your decision.

Back from Gas to Tankless Water Heaters

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Regular tank style water heaters, no matter how energy efficient, are a big waste of electricity.

Why you may ask? Because they still use an outdated way of heating water.

With a tank heater, the water in the tank has to be kept at a constant temperature, even if it is not in use. Every time the temperature drops below a certain point, the power turns on in order to heat the water back up.

If you want a truly fuel efficient way to heat your water, use a tankless water heater, often referred to as an inline heater.

Why choose a water heater that doesn’t have a tank? There are many different reasons for using tankless water heaters.

For one thing there are two models to choose from gas, as well as electric.

The electric tankless water heaters are the best for people who are trying to get off the power grid, or cut down on their electricity usage. The other reason for using them is that they only heat up the water when you need it.

How Gas And Electric Tankless Water Heaters Work

Instead of a large tank that holds the water, and a heating element on the bottom, the tank has two sets of pipes running through it. The outer coil of pipes has an intake and an output.

The water fills this first coil. The inner coil is the power source, in this case, the electric heating element. There is also a valve and a sensor at the intake.

When you turn on the water, this valve opens, allowing water to flow through the system. The censor also activates, and the heat turns on.

Instead of trying to heat up a whole water tank, the element heats the coil of water, bringing it up to the appropriate temperature almost immediately. Water flowing out of the system is hot water.

When you are finished with your shower, or dish washing, or whatever, you simply turn the hot water off, the flow stops, the censor turns off and the heat stops, until you are ready to use it again.

There are some disadvantages to these systems, but the advantages far outweigh the cons. Sure, these electric tankless water heaters can’t handle multiple tasks as well, but you aren’t going to be taking a shower and washing clothes at the same time.

Some people say that it takes at least a gallon of water for the water to heat up. While in some cases this may be true, it depends on how far the unit is from the application.

Because these systems are small and compact, unlike a tank, you can put the fairly close to where you need them, like under the sink in the kitchen, or bathroom. Because they don’t use a tank, they weigh far less than those old outdated water heaters.

Now you may be asking yourself if they are more expensive that a tank heater. The truth is that they are very comparable in initial cost. An average hot water heater is going to run you at least two to three hundred dollars, and a standard tankless hot water heater will also start around three hundred dollars.

But there is substantial savings as well. For one thing, electric tankless water heaters use far less energy. Because you aren’t trying to heat up water all the time, it can also save water.

There are many different places you can go for electric tankless water heater, but your biggest and best choices are online. You can go to places like Amazon, or you can buy directly from the manufacturer. Many companies that make and sell these heaters also offer free shipping, big warranties, and guarantees.

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