Is a tankless electric water heater for you?
What is a Tankless Electric Water Heater
Tankless electric water heaters take much less space than storage type as water was heated directly. When you turn on the hot water, cold water travels into the tankless water heater where it is heated by electric heating element. This allows you a constant supply of hot water.
For those large families who using a lot of hot water, install more than 1 heater is common. This will ensure non-stop hot water for showers, laundry and the dishwasher.
Tankless electric water heaters (also called “on demand” units or an instant electric water heater) use 30 to 50% less electricity than tank type, saving about $100 or more per year, depending on water usage.
· Water was heated only when you turn on the faucet.
· The main advantage is that they eliminate the extra cost of keeping big volume of hot water in a storage tank, so you waste less energy.
· Continuously hot water supply, which is ideal for filling a big hot tub.
· Much more compact than a standard water heater and mount on a wall.
Electric vs Gas Tankless Water Heaters
The biggest difference between electric type and gas type is their efficiency. Electric tankless water heaters are typically around 98% or more efficient while gas type is around 80-85% efficient.
Tankless water heaters will free up space that a bulky water heater typically occupies.
The Bottom Line: Pricing and Installation
When you’re pricing a unit, be sure to get an estimate or firm bid on installation costs. This is not a do-it yourself project unless you have pro-level skills. You can contact us (JNOD) for more professional instructions.
Figure A: Tankless Water Heater Details
When a hot water tap is opened, the heating elements turn on. Water is heated as it flows through the heating element.
Electric tankless water heaters require a large amount of electrical power (when running). Surprisingly so, they are very energy efficient and economic. We will look into exactly how much electricity does a tankless water heater use (by using the power equation P = I * V and cost equation Cost = kWh * t (h)).
Heating water is one of the most power-hungry processes. Tankless heaters heat up the water in seconds (5 seconds from cold to hot water). To achieve that, we need an incredible amount of electricity.
Does that mean that tankless heaters require a lot of electricity?
Yes and no. When they are ‘on’, electrical tankless heaters require up to 27,000W of electricity. For comparison, an average washing machine will require a bit more than 1,000W to run (and it will run for 1-2h). However, electric tankless water heaters are not running all the time. All this energy is used to heat up water only when we use hot water.
In fact, even according to the US Department Of Energy, tankless water heaters can significantly reduce monthly electricity bills:
“For homes that use 41 gallons or less of hot water daily, demand water heaters can be 24%–34% more energy efficient than conventional storage tank water heaters.” (DOE on energy efficiency of tankless water heaters)
Most households use less than 41 gallons of water per day. 24% – 34% is quite a lot of energy savings. Electricity-wise, tankless water heaters are a smart financial investment (they also last for 10-15 years).
But how can such a power-hungry appliance reduce the electricity bill?
It all comes down to how many amps does a tankless water heater draw (since the voltage is always the same: 220/240V). Let’s calculate a bit to see how much electricity does an on-demand tankless hot water heater use:
Calculating the maximum running costs of tankless water heaters is quite easy. The key information here is how many watts does a tankless water heater use. We’ll do one quick example here, with more to follow.
Example: You have a 20kW electric tankless heater. How much does it cost to run it?
Solution: 20 kW heater will spend 20 kWh worth of electricity if you run it for 1 hour. The average kWh price in the US is $0,1319. That means a 20kW tankless heater will spend, on average, 20 kWh x $0,1319 per kWh = $2,64 per running hour.
That doesn’t sound a lot, right? Obviously, there are many factors that come into play like intake water temperature, hot water demands, and so on. For a 20kW tankless water heater, the $2,64 per hour is the maximum electricity usage (running at 100% heating output). You will likely run your heater 100% output for the first 15 seconds, and then the heating output percentage (and hence water heater costs) drops.
Now, the real question is this:
How many hours per day do you run the tankless water heater? Here is how much it costs to run a 20kW electrical tankless heater from our example for different time periods:
* 20 kW running at 100% output for 10 minutes (shower): $0,66.
* 20 kW running at 100% output for 30 minutes: $1,32.
* 20 kW running at 100% output for 1 hour: $2,64.
* 20 kW running at 100% output for 2 hours: $5,28.
* 20 kW running at 100% output for 5 hours: $13,20.
Be aware that we always predispose:
1) Price of electricity to be $0,1319 per kilowatt-hour.
2) Power of heater is 20kW.
In this case you should replace the electricity price of your market and the power your purchased.
We are a professional manufacturer of instant electric water heater and electric water tap, which is located in Shunde, the hometown of producing electric appliances. We are a set of manufacture, research and development, marketing integrated company.
We introduced a series of advanced production and detection facilities since foundation, with annual production capacity of million sets, the products are exported to north and south America, Europe, and other countries all over the world. Owning the best OEM and ODM exportation, technology and quality, we have become one of the most professional manufacturers of instant electric water heater and electric water tap in China.
JNOD insisted on developing with technology innovation, we possessed of several national famous technicians and had invented multiply product patents. We strictly implemented the ISO international quality management system, produced all the main parts and components independently, and the products passed the CCC, CB, CE, ETL(UL standard) certification with reliable guaranteed quality. In October 2021, JNOD Testing Centre achieved CNAS accrditation, being recognized by the National Laboratory, becoming one of the first enterprises with national accreditation laboratory qualifications in the electric water heater industry.
Our sales team have extensive experience of oversea markets.
We provide sincere and professional services, including OEM/ODM services, technology support, market analysis, usage of design and composition of installation. We have succeeded in providing marketing consultancy services and business solutions for our customers from over 50 countries. With tailor-make solution of hot water supply base on customers market demand, we helped many customers obtain great sales performance and were highly regarded.
Make the worlds best products, create the international top brands are the pursuit and dream of JNOD.
Let’s look forward to the future, we sincerely invite you to cooperate with us and achieve win-win together for a better tomorrow.
Major in providing required products for the customers with our strong capability of research and development on ODM basis.
Achieve customer’s own idea and design for the products and mass production.
JNOD do self-owned brand in China domestic and the oversea market, in addition, we have authorized brand agent in Argentina.
When it comes to instant electric water heater, one of our biggest concerns is the service life of the product, HOW LONG SHOULD YOUR TANKLESS WATER HEATER LAST FOR? Generally speaking, if water quality is good, our heating element can use 8-10 years is no problem. So how do we ensure our product service life?
Firstly, JNOD with special and unique technology in patent heating element, the first cast aluminum heating element technology applied the patent in China. Our patent heating technology--cast aluminum with long lifespan，anti- limescale and high efficiency . We use the patent to make customers to enjoy the best hot water supply.
Second, we have very strict quality control process. We do 100% test for main parts（PCB aging test lasting for 8 hours）, we do 100% test for finished product on assembly line and Comprehensive test bench automatic record the testing data.
Third, unlike conventional water heaters, high efficiency models have lower maintenance needs. Advanced technology is used to produce these heaters. Manufacturers adhere to high standards that guarantees efficiency in hot water supply. It also lowers the need for frequent maintenance.
We always put safety and quality at the first position.
Quality is our life.
Chinese National Day is on October 1, which is an annual public holiday celebrated in the People’s Republic of China. The day marks the end of dynastic rule and the march towards democracy. It is an important milestone in the rich history of the People’s Republic of China.
The National Day of the People's Republic of China, is annually celebrated on October 1st to commemorate the founding of the People's Republic of China in 1949. Chinese people enjoy a 7-day holiday from Oct. 1st to 7th, which is known as Golden Week. There are usually many activities held around the country, especially in Beijing. It is a peak time for Chinese people to travel at home and abroad.
JNOD In order to provide the best service to our customers, our break time is: the holiday dates are Oct. 1st to 5th, 2022. We will be come back on Oct. 6th .
Wish you Happy Chinese National Day ！
Of course not, it’s so easy. Please follow me to see how to install.
Firstly, the installation must be in compliance with the National Electrical Code, your local electrical and plumbing codes.
1. Make sure the appliance is intact, and the fittings are complete.
2. Please make sure the main power supply, water pressure, grounding condition, ammeter and wire reach the standard of installation requirement.
3. The appliance must be connected to properly grounded dedicated branch circuits of proper voltage rating. Ground must be brought to the “ground” at the circuit breaker panel.
4. This appliance MUST be permanently connected to the fixed circuit breaker. If you don’t use the heater, please switch off the circuit breaker.
5. DO NOT install this appliance near to tinder or strong magnetic field place. The appliance can be installed above or under the sink, and unit must only be mounted in a VERTICAL position near by the water fittings. Please electrify try the machine after getting through waterway.
Second, how to install?
The Mini tankless electric water heater can be used for hand washing, kitchen and it can be installed above or under the sink.
●Mounting the unit
1. Locate an appropriate place on a section of wall as above mentioned.
2. Drill two holes of 6.00mm diameter: if you install the heater upright above the sink, the distance between every two holes is 172mm; if you install the heater upside down under the sink, the distance between every two holes is 150mm. Put plastic anchor in the holes
3. For Upright Installation, nail in the floor in upper hole. For Downward Installation, nail in the floor in under hole, fix the appliance on the wall with the below nail.
4. Fix the appliance on the wall with the fixed nail;
5. Then fix the appliance with nail in another hole, to make sure the whole appliance is installed on firm.
It is very easy, right? If you have any installation problems after purchase, please feel free to contact us
Now a day, tankless electric water heaters are getting better and better, it is a very wise choice for people saving energy bills, approve their financial status. Especially those using JNOD patent cast aluminum heating element, up to 97% heating efficiency will better save much more money than others.
Not decide yet? Then, take a look to below pros of tankless electric water heaters, it will help on the decision making.
Pro #1: Instant Endless Hot Water
Tankless water heaters can provide unending stream of hot water almost instantly. It supplies hot water within 3 seconds without the inconvenience of bulky storage tanks.
Pro #2: Longer Lifespan
For using our patent heating element, structure itself could anti-limescale, the element will not have limescale inside, even in very hard water area, it could still work at least 5-8 years, some even could last longer, like 10 years!
Pro #3: Cut Off “Standby Loss”
Unlike the storage heater, tankless type will only consume electricity when user open the valve, and heating efficiency of our heating is 97%, minimized energy loss, saving energy paid every day.
Pro #4: Space Savings
Tankless electric water heaters are much smaller than bulky storage models, even smaller than gas water heater. Installers usually mount them on a wall in an inconspicuous place in the basement. In smaller homes, the space savings is a welcome benefit.
Tankless Water Heaters, are appliances that produce hot water only when called for. Unlike conventional units that keep heated water in a tank that typically holds 40 to 80 gallons, a tankless unit heats water quickly on demand. And consumes less energy because you pay to heat only what you use. Reduced energy consumption means lower utility bills. In addition, a well maintained tankless system can have a life span that’s twice as long as a conventional storage water heater.
Basically, there are two types of tankless units:
Point-of-use water heaters are small enough to fit in tight spaces, typically under the kitchen sink or other areas in the home where hot water is needed. Incorporating several point-of-use units can reduce water heating costs significantly.
Whole house units are capable of simultaneously meeting hot water requirements at several locations, such as your dishwasher and shower.
Sizing is based on the flow rate that’s required and the temperature rise that’s needed. The flow rate is the amount of water that’s needed at any one time, and the temperature rise is the difference between the temperature of the water coming into the home and the temperature of the water flowing from the faucet. If the temperature of water coming into your home is 20 degrees, and you want water that’s 60 degrees at the faucet, the rise would be 40 degrees.
Are you considering a tankless water heaters? We can recommend a tankless system that meets the specific requirements of your home. Please contact us to get the details.
As automation or immediacy is becoming more and more popular in the world, it comes as no surprise there are instant hot water systems. Also referred to as tankless hot water system, these systems give you virtually endless hot water, and you only pay for the water you use. Additionally, there's no need for those ugly, bulky storage tanks!
These all sound too good to be true. You have probably even thinking that there is a catch somewhere. JNOD has over 13 years of experience in hot water, and we are here to let you know why to install an instantaneous electric water heater (Tankless electric water heater).
Energy Efficiency Explained:
Standard water heaters have an energy factor of approximately 0.60. Meaning that approximately 60% of the energy generated is used to heat the water, and 40% of that heat is lost in this process. That heat goes out the vent. Instantaneous electric water heater have a 0.80-0.99 energy factor. JNOD electric tankless water heaters are 98% thermal energy efficient. You will greatly reduce your heat loss when you convert to tankless, and use less fuel to heat the same volume of water.
Electric Tankless Water Heater Cost:
When installed appropriately, an instantaneous electric hot water system will save you money in the long term. While they are more costly upfront, you will save money by only paying for the hot water you use.
On average, we have found that electric tankless water heaters have longer than storage tanks as well. They do not need to be replaced the absence of sacrificial anodes every so often as is the case with storage tanks. JNOD tankless water heaters electric are used with the cast aluminum heating element. Electricity and water separate to work, which is a great help to have a longer life span and avoid the water scale.
So electric tankless hot water system will be sure to make your wallet happy.
Electric Tankless Water Heater Price:
JNOD instant electric water heaters are applied for both kitchen sink and shower, and we will always give you exactly what you need. We will never offer a water heater that is too large or too expensive for your budget. You can trust our experienced team to find the water heater that works for your home or your business at the right price. Contact us today to learn more about our instantaneous electric water heater.
In the era of continuous product upgrading and iteration, almost every brand will have a new product launch every year. The new water heater has more room to upgrade than the old one in terms of technology, performance and appearance.
Our JNOD is so excited to share our high-tech product, which has dual heating systems: instant heating + water preheating. It adopts the relay heating mode. The system can automatically switch during working. This increasing mode makes JNOD rapid water heater different from the storage water heater on the market which work with dual-mode.
#01 Dual Heating Modes
- 30L large capacity water tank is made from high quality enamel, that is sintered at high temperature and not easy to corrosion;
- The power for instant heating is 5.5kW or 7kW. Easy installation and wide applicability.
#2 Raising Efficiency
- The highest water temperature of the inner tank can reach 85℃.
- Multi-fold capacity to supply more taps with increased hot water requirements.
- Good enough to use for bathtub washing, residential and commercial water heating.
# 3 Intelligence Appliance
- Fully automatic control: auto thermostatic, auto heating, auto refill cold water.
- Easy handling: Touch key, WiFi function with clearly LED display.