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No More Payng To Heat Water 24/7

Tankless or ‘on-demand’ water heaters are a more energy efficient solution to the problems posed by old fashioned storage tank heaters. The water heaters of the past were ideal in their day, but in modern times we need a more practical solution.

Saving Money

Rather than store heated water in a giant tank, tankless heaters heat the water as and when you need it. This ‘on demand’ function makes them more energy efficient, and means you can save money on your energy bills each month.

Gallons Per Minute

One of main categories you will see mentioned about these units is the maximum water flow rate. This number should be one of your key considerations when browsing on-demand heaters. Measured in gallons per minute (GPM), this is the amount of hot water that will be available to your household at a particular time. The top models will give as much as 10 GPM, which will be enough for even the biggest of families. 

Tankless Information

In A Decade

  • Tankless water heaters were first readily available around 10 years ago. However, in their infancy they were unreliable as technology wasn’t quite ready for them. These days technology has turned them into machines of efficiency and they have improved in every area.   Improvements in Modern Day Tankless Water Heaters •Modern day water heaters retail at much less intimidating prices than those of 10 years ago. •They are easier to install, as they have more practical designs which makes connecting to existing gas lines much more straight forward. •There are no longer problems with inconsistent water temperatures. Manufacturers have solved this problem in innovative ways by introducing buffer tanks and recirculation pumps. •They are more reliable and much easier to maintain.

How Do They Work?

  •  Gas and electric tankless water heaters work in the same way as standard water heaters that have tanks. The difference is that they are able to heat the water much more quickly, and are able to work only when needed. This means they don’t need a storage tank, and don’t use up the energy needed during standby operation.  When a hot water tap or appliance that draws hot water is turned on in the home, cold water is drawn into the water heater. The unit senses the flow of water and activates the burner. This in turn warms the heat exchanger (the part that heats the water). The heat exchanger is surrounded by the incoming cold water, which is then heated to the desired temperature, ready to travel on to the desired location. Since these units only heat water as it is required, they are much more efficient than conventional water heaters.  Some Energy Star certified tankless hot water heaters use a further heat exchanger. This allows them to use 9 % less energy than regular units. The second exchanger takes heat from the combustion gas, and condenses (cools) it. This means that the exhausted gas is much cooler than regular systems. Generally speaking, if the exhaust gases are cooler then it means the system has been more efficient and less energy has been wasted.   

Before You Buy:

  •  Checklist  1. Estimate the capacity that you’ll need.  This is really important with a tankless system. If you choose a model that can’t keep up with demand, then you won’t get any hot water.  While capacities of storage water heaters are defined as the number of gallons that fit into the tank, whole house tankless water heaters are measured in a different way. So how is the capacity of a water heater measured? Well, tankless hot water heaters are defined by the amount of hot water they produce in one minute. This gallons per minute (GPM) rating can vary from about 2-13 through different manufacturers. To estimate the type of capacity that you will need, you should imagine peak water usage times in the home.

Estimate your GPM (Gallons Per Minute)

Clothes Washer 3.3 

 Shower and Bathtub 2.5 

 Kitchen and Bathroom Sink 2.2  Dishwasher 1.3 

  If for example, you have two bathrooms and there are times when people will be showering simultaneously, then a model with a GPM rating of at least 4 would be desirable. However, a one bedroom home could suffice with something as low as 3 GPM. These GPM ratings also depend on the temperature of the incoming water. If you live in a cold area then expect the stated GPM value to be lower.  This isn’t the only number that you should be checking though. Each model has its own sizing chart. This includes information about the flow rate, the number of hot water fixtures in a home, and the effect of temperature rise. The sizing chart displays how a water heater performs in each situation, so that you can make sure you get the right sized model for your home.

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Endless hot water ! Its a Great thought

Noritz NRC1112 tank to tanklss with recirc line


tr40 noritz ez series