There is a lot of talk about the pros and cons of tankless water heaters verses storage tank water heaters. Water Heater Repair Los Angeles is going to begin a discussion on tankless heaters today, pointing out some of the claims and talking about the realities. They have benefits and downsides over traditional water heaters and it could just depend on what ones specific usage needs are that will figure out which type of the right one for ones house.
The standard concept of using a tankless water heater is one of being energy efficient. Water is heated up as it is used, and not kept in the large tank of a traditional water heater, continuously heated up so it is prepared whenever it is to be utilized. Likewise, because they can hang on the wall and use up essentially no space at all, they are really useful.
Given that tankless water heaters do need 240 volts of electricity and up to 160 amps to set up, one might have to have ones electrical box upgraded to accommodate the power need of the unit. For instance, and not to obtain extremely technical right here, 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.”
Tankless systems are sized by the flow rate determined in gallons per minute (GPM). One will have to determine when and exactly what ones highest need of hot water is to correctly determine the finest size unit to purchase.
Here is the formula for figuring this out from Keltec Inc:
Flow rate (GPM)
Temperature rise ( T ºF)
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 at home requirements to be examined as well in order to get the most out of a tankless water heater. If ones water is high in mineral material, like calcium, they will build up on the coils in time and minimize the life expectancy of the system. If the water hardness at ones house is above 11 grains per gallon, a water softener would be advised. Makers do include de-liming directions and typically have a caution light on the device to recognize when this needs to be performed. 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 optimal conditions, a tankless system will last much longer than a conventional water heater, which can assist validate the greater preliminary product expense and installment expenses, but one will require to bear in mind keeping it running appropriately to earn back ones financial investment.
Service and Repair Costs
These costs are generally greater for a tankless system than a traditional water heater, just to have a heads up. Many individuals generally do not have their traditional water heater services too regularly (unfortunately) however it is suggested to have a tankless device professionally serviced once a year.
Instantaneous Hot Water
This must not be that huge of a deal, but though manufacturers do promote immediate hot water. Clearly one understood 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 using 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 .5 gallons to 2 gallons per minute is required for electric tankless heaters to heat water.
Depending upon the quantity of hot water one needs at the exact same time, more than one system will have to be set up. This is easy to do, but obviously increases the equipment costs in the process.
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 costs are about $1200 and $300 respectively then too. One will, again, most likely need an electrical upgrade, as well as a different gas pipe setup (if making use of a gas tankless heater), and a new ventilation system. A benefit of replacing ones water heater with a system just like 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 advantages. First, if there was to be a leakage with a tank heater, there can potentially be water damage to ones home. Also, one should flush the tank at least when a year to keep mineral build up low, however there is the capacity for smelly water odor, bad tasting water, and the growth of legionella bacteria in the storage tank if it is not at a sufficient temperature. Traditional water heaters use up a lot 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 yes, tankless systems will make use of less gas than a conventional gas water heater which does have its ecological benefits. Nevertheless, a lot of electrical energy is used, for electricity takes longer to heat up water than gas. And, most electricity is produced from burning nonrenewable fuel sources.
As with any kind of technology, the field of water heating is ever progressing. Efficiency advances are increasing with conventional gas and specifically electric storage type water heaters. There are various advantages with tankless and traditional heaters that one will need to think about. Do not be reluctant to let Water Heater Repair Los Angeles know of any concerns you may have in the choice process.
Check out our Tankless Water Heater Repair Los Angeles page too!