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Tankless Water Heaters 5 Pros And 3 Cons

Posted by John Sims on Fri, Jan, 08, 2016 @ 14:01 PM

In our prior article, we explained what a tankless hot water heater is and how it Tankless_Water_Heater_Pros_Cons.pngcompares to a typical 40 gallon tank hot water heater.


  1. Endless Hot Water

The difference between your standard water tank heater and tankless is that a tankless supplies the hot water ‘on demand’. So if you need a shower any time of the day, you will get hot water when you want it and it will never run out! You can use up all the hot water in a tanked heater – which can be very frustrating if you are last in line in the morning for taking a shower.

  1. Energy Efficient – Saves Money!

One of the biggest pros of tankless water heaters is the running costs. Water heaters are the biggest contributor to energy bills so does a tankless water heater save you money in regard to running costs? Well the straight answer to that is YES.

When you heat water in a conventional tank, the water will slowly cool down over time thus you are wasting energy and as such needs extensive insulation. As a tankless heater is real-time, there is no need for insulation and is only on when needs be therefore it by default is more efficient. Figures show that you should save 30% energy, some even say this can go up to 60%.

  1. Space Saving

A tankless water heater only needs a little space compared to a conventional water heater, this is a god send especially in small apartments. If you are thinking about building a new home, that's a great time ot install a tankless water heaters. 

  1. Durability

A conventional water heater typically has a life span of upto fifteen years (this depends on how you look after it of course!), but a tankless water heater should last ten years longer (looking at 20-25 years on average). Compared to a tanked water heater which generally lasts 10 -15 years

  1. No chance of floods

One of the biggest concerns with your conventional tank is the potential for leaking issues, there have been many instances of flooded houses when the heater has ruptured. With a tankless, there's no tank, thus no chance of any unexpected floods.

As you can see there are many positive reasons why you should purchase a tankless water heater, but before you get carried away you should also consider the negatives below.


  1. Initial Cost

A big disadvantage with a tankless model is the actual cost of the heater. You may find that the cost is up to three times as more as standard water tank heaters, however these prices are coming down and are more comparable to your standard hot water heater.

  1. Installation

One of the real  cons of tankless water heaters is the need to modify your house when installing the tankless model.

If you purchase a gas tankless heater you will probably need to install a sealed ventilation pipe to exhume and supply air in safely which will result in extra costs plus you may even need additional gas lines in the house. These factors need to be weighed in before purchasing a water heater. Even electric tankless heaters may need some special installation like additional circuits.

If you have an older house, generally speaking the installation costs will be greater.

  1. Multiple Use Problems

As it is on-demand it can only supply a certain amount of hot water at that point, if you want to run hot water in the kitchen and the bathroom at the same time you will find that you won’t get hot water! If you have a large family this may cause some problems. You may need to consider installing multiple tankless water heaters, this stand true for larger houses.

So after looking at these tankless hot water heaters pros and cons, which one should you purchase? This depends on your situation. But if you are looking to replace your water heater then you should strongly consider a tankless water heater, over time you should earn back the money spent on the initial cost – plus you will not need to maintain as much as the standard tank heater.

The last question is, Are Tankless Water Heaters Worth It?

Hope This Helps!

Topics: Installation, Water Heaters, Tankless

What Is A Gas Tank-less Hot Water Heater?

Posted by John Sims on Wed, Jan, 06, 2016 @ 15:01 PM

Your typical hot water heater uses a conventional storage-tank which stands Tankless_Water_Heater.jpg.pngabout 5 feet tall and holds 40 gallons of hot water at a time. It requires keeping the water in the tank at the water thermostat setting. So needless to say it is burning natural gas to do this. Depending on a your water quality, a hot water heater can be expected to last 10 to 13 years.

A tankless water heater does not store hot water. Think on-demand. When hot water is needed, water flows through the device and the flow sensor fires the burner. Water lines around the heat exchanger warm the water to the desired temperature.

How It Works

Whole-home gas tankless water heaters apply the same principle to heat water as standard gas water heaters, but like we said, without a storage tank. They save energy by heating water only when needed, eliminating energy lost during standby operation. When a hot water tap is turned on in the home, cold water is drawn into the water heater. A flow sensor activates the gas burner, which warms the heat exchanger. Incoming cold water encircles the heat exchanger and leaves the heater at its set-point temperature. Combustion gases safely exit through a dedicated, sealed vent system. By heating water only when needed, instead of maintaining a tank full of hot water at all times, tankless water heaters can achieve greater efficiency than standard tank-type water heaters.

Here are the benefits of a Whole-Home Gas Tankless Water Heater according to ENERGY STAR:

Provides an endless flow of hot water.  There’s no need to suffer through a cold shower if you’re the last one out of bed.

Saves an extra closet’s worth of space compared to a gas storage water heater. Gas tankless water heaters are small and wall-mounted, unlike bulky tank-type water heaters. Models designed for outdoor installation free up even more space and add versatility to your basement, garage, or utility room.

Has fewer worries compared to a gas storage water heater. Tankless water heaters have a life expectancy of 20 years, much longer than any conventional tank-type water heater. And with a tankless model, the risk of tank leaks and water damage is a thing of the past.

Savings when compared to gas storage water heater. By heating water only when you need it, ENERGY STAR certified tankless water heaters save a family of 4 more than $95 per year, or $1,800 over its lifetime, on gas bills compared to a standard gas storage model.

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Topics: Energy Efficient Solutions, Water Heaters, Tankless

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