Advantages of a Tankless Water Heater

Advantage of TanklessTankless water heaters offer advantages that make this option a cut above the old-style hot water tanks. While these heaters gain popularity year over year, some homeowners are still not exactly sure what they are.

Homeowners throughout the world know that they are an energy-efficient, space-saving way to heat water.  They have converted to this style of water heater because of those advantages and more!

Still want to know why you should replace your tank water heater with one of these devices?  Read on to learn more about the benefits you will experience when you upgrade.


The top reason homeowners are upgrading to because they are more energy efficient.

A traditional hot water tank has a thermostat that is set to a temperature that is determined comfortable by the homeowner. The thermostat senses the water temperature inside this tank. It keeps the water set to this temperature all the time.  Indeed, it does a great job keeping the water at that predetermined temperature.

However, this means that the hot water tank heats water, all day, every day. So 24 hours a day, 7 days a week, 365 days of the year, your hot water tank heats water.  It doesn’t discriminate between when you are home or at work. Or if you are in residence or on an extended business trip.

This creates a huge waste of energy that results in a higher energy bill and creating a larger carbon footprint.

These devices work “on demand.” This means that when the homeowner turns on the hot water tap, the water passes through a heating element that very quickly heats the water and sends it out the tap.

This technology saves energy and money. When you are at work or on vacation, these devices do nothing. Which makes it the superior choice for energy savings.


An old-school hot water tank requires a separate closet, utility room, or space in the basement. It is large and bulky. There is a required amount of clearance around the hot water tank, so it takes up a fairly significant chunk of space in your home.

I live in an area where the soil is sandy. Therefore, there is not a basement in any home around me. My old hot water tank sat in a closet at the end of the hallway.  In fact, this closet was dedicated to nothing but housing the hot water tank.

So as I struggled to find space in my tiny linen closet to store towels, sheets, and other linens, the hot water tank took up a very large closet that was purely wasted space.

The day we removed the hot water tank and replaced it with a tankless water heater, we immediately gained a large closet! We built shelving and reclaimed that formerly wasted space.  This closet made a huge difference in the amount of storage space in our small home.

And in my home…when I’m happy, everyone is happy!


Traditional hot water tanks just don’t last as long as these heaters. You receive a much longer length of service when you select these water heaters over the tank-style water heater.

As I mentioned earlier, hot water tanks run frequently to keep the water heated consistently. This almost constant use greatly reduces their lifespan. This means you have, on average, 7-10 years of use before they get torn out and disposed of.

On the other hand, these devices lasts an average of 15-20 years before replacement. This is double that of the hot water tank!


I’ve saved the best advantage for last!  The best benefit of a tankless water heater is the plentiful hot water!

Hot water tanks hold a finite amount of water. So, if your spouse just showered, you may need to limit your shower time or the hot water runs out!  Guessing how much time you have to shower before the water goes cold can feel like a game of hot water roulette!

Conversely, a these heaters gives you an unlimited amount of hot water! Because of the water passing over the heating element as it delivers water to you, it’s safe to indulge in that very long, luxurious shower. Literally, you will have no fear of being left in the cold!

The Most Common Tankless Water Heater Install Issues

tankless-common-issues-507x640A well installed tankless water heater will provide you with years of amazing service when it comes to heating up your water on demand. However, if there’s just one aspect of the install which hasn’t been completed correctly then it can seriously hinder your tankless water heater’s performance.

According to a study conducted by a number of problems can crop up before, during and after the install procedure, so it’s always a good idea to familiarize yourself with these potential potholes. And that’s why we’re going to take a look at the most common tankless water heater install issues and how to avoid them.

Freezing Ambient Temperatures

The impact of freezing temperatures can mean that your tankless water heater system really struggles. Obviously, some areas of the world are warmer than others, but if you live in an area where the mercury struggles to rise, you’re going to need to take this into account when carrying out the install.

External installs are a very bad idea in areas where freezing temperatures are commonplace throughout the year, so the best option in these circumstances is to keep the tankless unit in an internal, heated space. This prevents your system from struggling for performance and wearing itself out in the process.

Incorrect Gas Supply

Tankless water heaters aren’t the type of systems that you can just ‘plug in and play’, you need to set them up correctly and precisely. And one of the most common areas of a tankless heater install to be overlooked is the gas supply.

Manufacturers of tankless heaters will always specify the gas supply required, but many installers decide that they can ignore these instructions and install exactly how they want. Whilst this may make for a quicker install, if you’re unable to provide enough gas then you’re going to find yourself with cold water very quickly.

Underestimating Demand

It’s very easy to take hot water for granted, so you may not be aware of exactly how much water you actually use day to day; it’s this lack of groundwork which leads to many homeowners installing tankless water heaters which can’t cope with the demand.

Therefore, before purchasing your water heater it’s best to carry out a worst case scenario run to get yourself a little bit closer to understanding how much hot water you need to provide on any given day. Once you’ve calculated this figure you’ll be able to investigate which heater is best for your needs.

Incorrect Venting = Unwanted Shutdown

Venting is a highly important factor to ensure that your tankless water heater can get rid of unwanted heat quickly and efficiently. However, poor installs – which can include over-elaborate and lengthened pipework – mean that heat can build up.

When this happens, you’ll discover (the hard way) that your water heater’s controller shuts your system down as a safety precaution. And this means your hot water production will cease, so you need to pay close attention to the necessary venting that is required.

Not Realizing All Water Heaters Are Different

Maybe you’ve installed a couple of tankless water heaters in your time, but this doesn’t mean you can install every system on the planet without even a glance at the installation instructions. Every system is different with varying requirements and demands.

Reading the instructions thoroughly, therefore, is crucial to help you install your water heater correctly. Not only will this allow you to maximize the performance of your heater, but it also prevents any safety issues caused by an incorrect install.

Pro and Con Reasons for Using Tankless Water Heaters

water-heater-featureEvery homeowner should know what options they have when they plan to change the water heater. There are plenty of choices that you can take regarding this device,  depending on your budget or on other criteria that we’re going to present.

The tankless water heater has become quite popular in the choices of homeowners, as it can work with gas or electricity.

What It Is

Also known as “on-demand water heater,” this device doesn’t have a tank for storing water. It provides you with hot water instantly, the moment you turn on the faucet. Because they use a different technique for warming the water, they use less electricity, and this is extremely convenient when you plan to save some money.

It can be a sound investment if you want to get one, but keep in mind that these are not for everyone.

Pro Reasons for Getting One

The first reason that anyone thinks about getting a tankless water heater is due to the lower energy costs that. Compared to other similar items that use gas, this one will save up to 40% of the energy bill. It makes it very convenient for small families and for those who don’t need to use more than one shower at a time.

Another reason for using it or changing your old water heater is that it takes up less space. It is smaller than its counterparts that have a tank, and it is mounted on the wall. The on-demand water heater has a longer lifespan, and because there is no tank attached to it, you can use it for several years without worrying about it.

Beside from this reason, people also like that they can choose between gas supply or electric supply. There are also other types of fuel for them, but those two are frequent choices. For those who have the possibility to get a gas heater, the option is perfect because it has a considerable efficiency boost compared to the gas-powered storage heaters.

It makes an excellent choice for everyone who wants to have hot water instantly. The storage water heaters can take up to an hour for heating the water. However, with the on-demand heater, you can have hot water whenever you need it.

Con Reasons

First of all, it can cost more than the storage water heater. Even with all the pro reasons for buying it, the on-demand heater is a little more expensive.

The higher risk that you can take with using this device is the system of pipes that go with it. If one pipe breaks, you need to change it immediately.

Another problem that you could have with it is that it isn’t possible to use the dishwasher and the shower at the same time. It cannot sustain two sources for running water, so it can leave someone in the cold if you’re using the sink in the kitchen and they are taking a shower.

In the end, the choice is yours to make. If you consider that there are more benefits to using it, you can invest some money and improve your house with one of these devices.

Tips for Buying a Water Heater

why-tanklessYour home should offer the comfort that you need, and this means that you should have access to hot water whenever you need it. If for example, your water heater has a ten years warranty and you use it for 12 years, then it’s time to get a new one.

There are plenty of options on the market because this is a domain that is continuously developing. New energy-efficient regulations are in place, so you need to do your homework for finding the best water heater for your home.

Let’s see what types of water tanks that you can find on the market and the most important thing that one has to consider when shopping for this.

The Capacity

Depending on how much water you need to use every day, you might want to look at the capacity of the water heater when you buy one. The size (or the capacity) is about how many gallons of water it can hold. For the devices that have a tank, you need to consider the FHR (the first-hour rating), while for the tankless water heaters, you need to find the GPM (the gallons-per-minute).

The FHR and the GPM tell you how much hot water you can use in a given period, i.e. an hour.


The Storage Tank Water Heater

These are the most common types that you can find on the market. Just as the name suggests, they use a tank that holds water and heats it to a set temperature. The tank is insulated and allows it to store the water until you need to use it.

You’ll find that these devices can run with gas or energy, and the gas ones are more energy-efficient than the others.

The On-Demand Water Heater

Also known as tankless water heaters, these use a system of heating coils for providing the hot water when you need it. Using one of these will lower your energy bills because they don’t keep the water hot for a longer period – the energy used for a tank costs more than the energy used for heating water when you need it.

The on-demand water heaters are perfect for small families or for people who don’t use the device simultaneously in the kitchen and the bathroom.  It has a limited amount of hot water flow that you can use per minute, about 3.5 gallons, and work more energy-efficient with gas instead of electricity.

The Hybrid Water Heater

The hybrid water heater is a newer model on the market, and it uses the heat captured from the air and transfers it to the water. A hybrid device is energy-efficient because it saves you about 60% of the energy bill. If you plan to get one, make sure you place it in a room that has a constant temperature – they don’t wh-gas-fired-interiorwork well in places that are cold below 40 degrees or warmer than 90 degrees.

The Solar Water Heater

These heaters are ecological, and they also help you reduce the costs of your energy bills. They use the solar energy to warm the water, as the solar panels absorb the heat of the sun and transfer it to the water. In the summer you will see that it works perfectly, allowing you to save up to 90% of the energy bills. However, it is quite expensive, and you will be able to recover your costs in about 10 to 30 years, depending on how much money you’ve paid for it.

The Condensing Water Heater

It is a small unit that can offer you hot water for using in the shower, but also for heating your home through the radiators. It’s efficient because it uses gas and it saves about 40% of the energy bill, but you need a professional plumber to set it up.

You can choose any of the above, but consider all the aspects carefully before you take any decision.