Are Tucson Tankless Water Heaters Practical

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

There is a lot of talk about the pros and cons of tankless water heaters verses storage tank water heaters. We are going to start a discussion on tankless heaters today, explaining some of the claims and going over the realities. They have advantages and downsides over traditional water heaters and it might simply rely on exactly what ones certain usage demands are that will identify which sort of the proper one for ones home. Water Heater Repair Tucson

The basic theory of utilizing a tankless water heater is among being energy efficient. Water is heated up as it is used, and not saved in the large tank of a traditional water heater, continuously heated so it is all set whenever it is to be utilized. Likewise, since they can hang on the wall and use up virtually no space at all, they are very practical.

Electrical Usage

Considering that tankless water heaters do need 240 volts of electrical power and up to 160 amps to establish, one could need to have ones electrical box updated to accommodate the power need of the device. As an example, and not to get extremely technical below, a standard tank water heater has around a 4500 watt heating element, verses 4, 7000 watt elements of a whole-house tankless one.

When it comes to 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.”

Proper Sizing

Tankless systems are sized by the flow rate determined in gallons per minute (GPM). One will have to figure out when and what ones greatest need of hot water is to properly identify the very best size device to purchase.

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

Flow rate (GPM)
Temperature rise ( T ºF)

Water Heater Size formula

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 have to be examined as well in order to get the most out of a tankless water heater. If ones water is high in mineral content, like calcium, they will build up on the coils in time and reduce the life span of the unit. If the water hardness at ones home is above 11 grains per gallon, a water softener would be recommended. Makers do have de-liming directions and typically have a warning light on the device to identify when this must be carried out. Nonetheless, keep in mind what the producers guarantee covers. If it is simply against producer’s defect, this will not cover any repairs needed due to ones water quality. In ideal conditions, a tankless system will last much longer than a traditional water heater, which can help validate the higher preliminary product cost and installment costs, however one will have to bear in mind keeping it running correctly to earn back ones financial investment.

Service and Repair Costs

These expenses are generally greater for a tankless system than a traditional water heater, just to have a heads up. Many individuals typically do not have their conventional water heater services too routinely (unfortunately) however it is suggested to have a tankless unit skillfully serviced as soon as a year.

Instantaneous Hot Water

This must not be that big of a deal, but though manufacturers do promote instantaneous hot water. Undoubtedly one realized that it takes a moment for the hot water being heated immediately to go through ones hot water pipe to the faucet or shower. Though, if one is simply using the faucet a little the tankless heater’s burner might not fire up if the faucet is not opened up more. For example, a flow rate of 1/2 gallons to 2 gallons per minute is needed for electric tankless heaters to heat water.

Depending on the amount of hot water one requires at the same time, even more than one unit will have to be set up. This is simple to do, however clearly increases the equipment expenses while doing so.

Equipment and Set Up Costs

A typical cost range for tankless heaters is around $800 to $1200. A normal tank water heater it is around $300 to $500. Set up expenses are about $1200 and $300 respectively then too. One will, once again, most likely need an electrical upgrade, along with a different gas pipe setup (if utilizing a gas tankless heater), and a brand-new ventilation system. An advantage of changing ones water heater with a system just like the existing one is many of these upgrades will not be needed – they are currently st up.

Benefits of Going Tankless

No stored water, which in itself has numerous 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 when a year to keep mineral build up reduced, however there is the potential for smelly water smells, bad tasting water, and the development of legionella bacteria in the tank if it is not at a adequate temperature level. Traditional water heaters use up far more space also.

The previous video shows the advantages of tankless water heaters and this video expresses some of the drawbacks of tankless water heaters:


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 point to weigh is that indeed, tankless systems will utilize less gas than a traditional gas water heater which does have its environmental advantages. However, a great deal of electricity is utilized, for electricity takes longer to heat up water than gas. And, the majority of electrical energy is produced from burning fossil fuels.


Just like any sort of technology, the field of water heating is ever progressing. Efficiency advances are increasing with traditional gas and especially electric storage type water heaters. There are various benefits with tankless and standard heaters that one will have to think about. Do not hesitate to let us know of any questions you may have in the decision procedure.

Check out our tankless water heater repair page too!