Are Tankless Water Heaters Practical

Posted by on Jan 28, 2014 in Tankless Water Heater Repair Jacksonville, Water Heater Repair Jacksonville

There is a great deal of discuss the benefits and drawbacks of tankless water heaters verses storage tank water heaters. Water Heater Repair Jacksonville is going to start a conversation on tankless heaters today, pointing out a few of the claims and talking about the realities. They have advantages and downsides over conventional water heaters and it could just depend upon what ones specific use demands are that will figure out which type of the right one for ones house.Water Heater Repair Jacksonville

The fundamental concept of utilizing a tankless water heater is among being energy efficient. Water is heated as it is used, and not saved in the large tank of a traditional water heater, constantly warmed so it is all set whenever it is to be made use of. Also, since they can hold on the wall and take up essentially no space at all, they are extremely useful.

Electrical Usage

Considering that tankless water heaters do need 240 volts of electricity and up to 160 amps to establish, one could need to have ones electrical box upgraded to accommodate the power need of the unit. For example, and not to get excessively technical below, a traditional tank water heater has around a 4500 watt heating element, verses four, 7000 watt elements of a whole-house tankless one.

As for efficiency, According to the Partnership for Advancing Technology in Housing (PATH), and supported by Housing and Urban Development (HUD), “further testing is needed to determine if electric tankless water heaters will match the efficiency of tank-type heaters.”

Appropriate Sizing

Tankless systems are sized by the flow rate measured in gallons per minute (GPM). One will have to determine when and what ones highest demand of hot water is to correctly figure out the finest size system to get.

Below is the formula for figuring this out from Keltec Inc:

Flow rate (GPM)
Temperature rise ( T ºF)

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To determine the size and kilowatt rating you need, apply this formula:
“The result of this formula is the maximum kW needed to accomplish your project requirements for on-demand heated water. Other media will vary slightly. This formula is a nearly universal method of calculation for energy input to yield temperature at required water flow.”

Water Quality on the Tankless System

The quality of the water one has in ones house should be analyzed too in order to get the most from a tankless water heater. If ones water is high in mineral content, like calcium, they will develop on the coils gradually and decrease the life span of the unit. If the water hardness at ones home is above 11 grains per gallon, a water softener would be suggested. Producers do have de-liming instructions and normally have a caution light on the unit to recognize when this should be done. Nonetheless, keep in mind what the makers guarantee covers. If it is just against producer’s defect, this will not cover any repairs required due to ones water quality. In optimal conditions, a tankless system will last much longer than a standard water heater, which can help validate the higher initial product expense and installment expenses, but one will need to bear in mind keeping it running appropriately to earn back ones investment.

Service and Repair Costs

These costs are typically greater for a tankless system than a traditional water heater, just to have a heads up. Many individuals generally do not have their standard water heater services too regularly (sadly) but it is advised to have a tankless system professionally serviced when a year.

Instantaneous Hot Water

This should not be that huge of a deal, however though producers do advertise instant hot water. Undoubtedly one recognized that it takes a minute for the hot water being heated right away to go through ones hot water pipe to the faucet or shower. Though, if one is just turning on the faucet a little the tankless heater’s burner might not ignite if the faucet is not opened up more. As an example, a flow rate of one-half gallons to 2 gallons per minute is required for electric tankless heaters to heat water.

Depending upon the amount of hot water one needs at the exact same time, more than one unit will should be installed. This is simple to do, however undoubtedly increases the equipment costs while doing so.

Equipment and Set Up Costs

A typical price range for tankless heaters is around $800 to $1200. A common storage tank water heater it is around $300 to $500. Set up expenses are about $1200 and $300 respectively then too. One will, again, most likely require an electrical upgrade, as well as a different gas pipe setup (if making use of a gas tankless heater), and a new ventilation system. An advantage of replacing ones water heater with a system comparable to the existing one is many of these upgrades will not be required – they are already in place.

Advantages of Going Tankless

No stored water, which in itself has a number of advantages. Initially, if there was to be a leak with a tank heater, there can possibly be water damage to ones home. Likewise, one must flush the tank a minimum of as soon as a year to keep mineral build up low, but there is the capacity for smelly water odor, bad tasting water, and the development of legionella bacteria in the tank if it is not at a high enough temperature level. Standard water heaters take up far more space too.


Here is what Consumer Reports has found: “Gas tankless water heaters, which use high-powered burners to quickly heat water as it runs through a heat exchanger, were 22 percent more energy efficient on average than the gas-fired storage-tank models in our tests. That translates into a savings of around $70 to $80 per year, based on 2008 national energy costs. But because they cost much more than storage water heaters, it can take up to 22 years to break even longer than the 20-year life of many models. Moreover, our online poll of 1,200 readers revealed wide variations in installation costs, energy savings, and satisfaction.”

The Center for Energy and Environment says that “A 37% savings of water heating energy per household was found for replacing a typical natural draft storage water heater with a tankless one. However, this savings was not enough to offset the high incremental cost resulting in paybacks from 20 to 40 years.”

Finally, the National Rural Electric Cooperative Association concludes that “Tankless water heaters generally aren’t as energy efficient as well-kept tank water heaters. Insulation, temperature setback, timers, and heat traps can all lower energy costs with tank water heaters.”

One indicate is that yes, tankless systems will utilize less gas than a traditional gas water heater which does have its environmental benefits. Nevertheless, a great deal of electrical power is used, for electricity takes longer to heat water than gas. And, the majority of electricity is produced from burning nonrenewable fuel sources.


Just like any sort of innovation, the field of water heating is ever developing. Efficiency advances are increasing with standard gas and specifically electric storage type water heaters. There are various benefits with tankless and standard heaters that one will should think about. Do not be reluctant to let Water Heater Repair Jacksonville know of any concerns you might have in the decision procedure.

Check out our Tankless Water Heater Repair Jacksonville page too!