Are San Diego Tankless Water Heaters Practical

Posted by on Jan 28, 2014 in Tankless Water Heater Repair San Dieg, Water Heater Repair San Diego

There is a great deal of talk about the benefits and drawbacks of tankless water heaters verses storage tank water heaters. Water Heater Repair San Diego is going to begin a conversation on tankless heaters today, mentioning some of the claims and discussing the truths. They have benefits and downsides over traditional water heaters and it could just depend upon what ones specific usage needs are that will determine which sort of the correct one for ones house. Water Heater Repair San Diego

The fundamental concept of making use of a tankless water heater is one of being energy efficient. Water is heated as it is utilized, and not stored in the large tank of a conventional water heater, constantly heated up so it is prepared whenever it is to be made use of. Also, considering that they can hang on the wall and use up practically no space at all, they are very practical.

Electrical Usage

Because tankless water heaters do require 240 volts of electrical power and approximately 160 amps to set up, one could need to have ones electrical box updated to accommodate the power demand of the system. For instance, and not to get extremely technical here, a standard tank water heater has around a 4500 watt heating element, verses four, 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.”

Appropriate Sizing

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

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

Flow rate (GPM)
Temperature rise ( T ºF)

Water Heater Repair San Diego CA

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 requirements to be analyzed as well 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 over time and minimize the life expectancy of the unit. If the water hardness at ones house is above 11 grains per gallon, a water softener would be advised. Producers do include de-liming directions and generally have a warning light on the system to recognize when this must be carried out. However, remember what the makers guarantee covers. If it is just against manufacturer’s defect, this will not cover any repairs needed due to ones water quality. In perfect conditions, a tankless system will last much longer than a standard water heater, which can assist validate the greater preliminary product expense and setup costs, but one will have to bear in mind keeping it running properly to make back ones financial investment.

Service and Repair Costs

These costs are typically higher for a tankless system than a standard water heater, just to have a heads up. Lots of individuals usually do not have their standard water heater services too frequently (regrettably) but it is recommended to have a tankless unit skillfully serviced as soon as a year.

Instantaneous Hot Water

This must not be that huge of a deal, but though manufacturers do advertise immediate hot water. Undoubtedly one recognized 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 turning on the faucet a little the tankless heater’s burner may 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 required for electric tankless heaters to heat water.

Depending on the amount of hot water one requires at the exact same time, even more than one system will should be set up. This is simple to do, however certainly increases the equipment costs while doing so.

Equipment and Set Up Costs

A typical cost range for tankless heaters is around $800 to $1200. A normal storage 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 require an electrical upgrade, in addition to a different gas pipe setup (if making use of a gas tankless heater), and a brand-new ventilation system. A benefit of replacing ones water heater with a system similar to the existing one is most of these upgrades will not be needed – they are already st up.

Benefits of Going Tankless

No stored water, which in itself has numerous benefits. First, if there was to be a leak with a tank heater, there could possibly be water damage to ones house. Also, one ought to flush the tank at least once a year to keep mineral build up low, however there is the capacity for stinky water smells, bad tasting water, and the growth of legionella bacteria in the storage tank if it is not at a high enough temperature level. Traditional water heaters use up much even more space too.

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 indicate is that indeed, tankless systems will use less gas than a conventional gas water heater which does have its ecological benefits. Nevertheless, a lot of electricity is made use of, for electricity takes longer to heat water than gas. And, most electrical energy is produced from burning nonrenewable fuel sources.


Just like any kind of innovation, the field of water heating is ever advancing. Efficiency advances are happening with conventional gas and particularly electric storage tank 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 might have in the choice process.

Check out our Tankless Water Heater Repair page too!

Phil Luther Plumbing Content Writer and Curator Phil is a prolific writer of content for plumbing related websites in the United States. Google Profile