electric tankless water heater
1) What is a tankless water heater?
Most people use a storage tank water heater to provide hot water in their homes. A storage tank water heater keeps water hot 24 hours a day, even while you are at work or sleeping. A tankless water heater, on the other hand, does not store hot water. It heats the water as you use it.
2) How can a tankless water heater heat water instantly?
When you open a faucet, the flow of the water triggers the heater to turn on. electrical elements will turn on, rapidly heating the water as it passes through the unit.
The water is heated instantly, and the time it takes to obtain hot water is directly related to the distance the hot water has to travel from the water heater to where hot water is being used. The energy that is consumed is only for the hot water that is being used, hence highly efficient.
3) What are the advantages of a tankless water heater?
A tankless water heater turns on when you open and turns off when you close the shower handle, the energy that is consumed is only for the hot water that is being used. Since there is no storage of water, and thus no constant heating and re-heating of stored water, you are not wasting energy heating water when you do not need it, such as when you are sleeping or not at home.
More over stored hot water loose sits heat which has to be again reheated at the time of use. Thus leading to higher power usage.
This energy savings translates to money savings for you and reduced impact on our environment. Furthermore, since a tank less water heater heats the water as you use it, you can have an endless supply of hot water, provided you size the unit appropriately
4.What are the advantages against large storage water heater and instant water heater ?
The large over head water heaters are generally located at the top of the building, the user has to waste lot of water before he can access hot water. Thus leading to water loss.
Further the hot water left behind in the pipe line again gets cooled and once again the same water loss cycle is repeated thus leading to additional cost on pumping, excessive usage of power and increasing the waste water.
All this can be avoided by installing point of use Instant water heater.
5. How much money can I save?
Depending on which model of tank less water heater you purchase, and what size storage tank you have now, you could save anywhere from 60 to 70% off your hot water heating bill. How? Most homes use hot water for a cumulative total of about one hour per day, yet they typically keep 40 or 50 gallons (often times more) of water hot 24 hours a day. Having a system that eliminates the storage and heats water only as you use it can dramatically reduce your energy consumption.
The plumbing requirement is also reduced (As you do not need multi pipe lines one for hot water and the other for cold water) which reduces the capital cost.
6. Do we need hot & cold water mixer.
No you don’t need mixer as you can draw hot water from the unit instantly at desired temperature.
7. Are there other benefits of using a tankless water heater?
There are many advantages of having a tank less water heater in your home. Besides the money savings, endless hot water and smaller impact on the environment, a tank less water heater:
- It needs only 2.2 liter per minute of water as against other showers which use between 8 to 14 liter per minute. Thus saving on water, power required to heat and also reduce pollution.
- Is very small and can hang on the wall, thereby saving you valuable floor space.
- Is designed with replaceable parts and is built with such materials as copper, stainless steel, so as to last a lifetime. Energy savings is only one segment of savings ? with proper care this could be the only water heater one needs in a lifetime.
- Is almost entirely recyclable, so if you ever decide to replace it, it need not have to go to the landfill.
- Will not develop a corrosive leak like a storage tank water heater, saving you from expensive water damage in your home.
- Maintains its efficiency throughout the lifetime of the unit. Storage tank water heaters decrease in efficiency over time due to mineral build-up inside the tank. This is due to the fact that storage tank water heaters store hot water, giving those minerals a chance to settle out and bake from the heat onto the walls of the tank, and onto the heating element in electric models, thereby reducing heat transfer.
8. Will one tank less water heater be enough to heat my entire house?
We need independent unit for every bathroom as these are point of use systems.
9. What if I have hard water?
Since tank less water heaters do not store hot water, minerals have less of an opportunity to settle out of the water column and build up inside the heat exchanger. Additionally, the flow of hot water through the coiled heat exchanger flushes the product each time hot water is used. The use of a water softener is fine with a tank less water heater, and is recommended if you commonly experience hard water problems in your home. HARD WATER
10. What If I live in an area with high altitudes?
Electric units are not affected by higher altitudes.
11. How do I properly size my tankless water heater?
reThink tankless water heater can deliver endless hot water, shower after shower and are individually fitted for each bathrooms and are designed to deliver required hot water even in cold weathers.
12. Is this a new technology?
No. Europe, Asia and South America, where energy costs are more expensive than here in North America, have been using tankless water heaters for 75 years. However, most Americans and the world are just now learning of this technology and its benefits.
13. What is a point of use tankless water heater?
reThink is designed to be installed at the point of use, thereby eliminating a long pipe run. They are mostly sized to supply hot water for shower.
These water heaters are usually used for one of two reasons. One is to supply hot water to a remote location that is not served by a larger water heater. The other is to eliminate the wait time for hot water. They offer the advantage of not having to wait for hot water. You can install a point-of-use water heater right at the source,. Therefore, when you turn on shower you have hot water instantly available to you. This eliminates your wait for the hot water and saves water, our most valuable resource, from being wasted down the drain as you wait for hot water to arrive.
14. Is the unit suitable for high rise building?
reThink is designed for 0.02-0.6mpa / 0.2-6kg / 0.2-6bar, max working pressure. Safety release devices have been provided in the unit and also at the outlet. It is essential to check pressure of water at inlet to ensure trouble free performance. Special care needs to be taken while installing water heater in multi-story buildings or at locations where hydro pneumatic pumping systems are being used to supply water.
15. Will my water heater consume lot of energy?
reThink Saves more than 70% power in comparison.
16. Real time water usage data for water & power.
Yes Real time power usage data is available on the unit itself.
17. Cleaning efficiency for skin hygiene:
Very high efficiency is achieved due to built in pressure pump and patented nozzle design which delivers water in high speed rotation which enable it to clean better with very small quantity of water.
18. Water flow
Can be controlled infinitely as per the users preference both from the pressure of pump and from the patented shower handle with multi nozzles
19. Temperature control
Infinitely controllable as per the user.
20. Cold water sandwich
Cold water sandwich has been reduced to the extent that the user does not feel he difference while using the shower.
21. Scaling (Deposition due to hard water)
No the unit does not scale for a very long period further details can be found on HARD WATER SOLUTION.
22. Shower head clogging
The patented design does not allow for shower head clogging in spite of long use. HARD WATER SOLUTION.,
23. Scalding
Doctors recommend maximum temperature for bath at 44.4 degree centigrade, yet rethink has been designed to deliver water up to 55 degree centigrade.
At 55 degree centigrade a person has to continuously hold the shower handle for more than 15 seconds for scalding to happen.
15 Seconds is more than enough time for any user to divert the flow and safeguard himself.
24. Filter for removal of solids
reThink comes with built in initial filter to remove any solids from entering into the systems to avoid any blockage.
25. Pump
reThink provides built in pump to increase pressure, hence suitable for low pressure water inlet too.
26. Inlet water pressure control (High Rise Buildings)
reThink unit is suitable for high rise buildings where the pressure is controlled and comes with safety release valve. Do refer Point 14 above.
27. High temperature
reThink comes with AUTO cut off and is scald free.
28. Dry run protection (No water)
Auto cut off if there is no water, there by keeping the user and the unit safe.
29. High voltage
reThink comes with Auto power shut in case of high voltage.
30. Power leakage
Unit shuts down in case of power leakage instantly, how ever additional safety is taken into consideration b y providing safety switch at the power inlet itself. Thus keeping the user safe all time.
31. Water proof
reThink is IP25
32. Modular design (Ease of fitting)
reThink is modular and is basically Do It yourself kind of system, all details are provided in the manual, however it is advised to bring in proper electrical & plumbing engineer as per the local laws. MANUAL
33. Error Code High temperature
reThink provides error code on display in the vent of high temperature and the unit shuts down automatically. (E1)
34. Error Code Electricity leakage
reThink provides error code and is displayed as (E2) in the event of power leakage.
35. Error Code Temperature sensor failure
reThink provides error code and is displayed as (E3) in the event of temperature failure.
36. Error Code High Voltage
reThink provides error code and is displayed as (HI) in the event of high voltage & shuts down
37. Error Code Low Voltage < 180 Volts
reThink provides error code and is displayed as (LO) in the event of Low voltage.
38. Return on investment.
India about 8 months, for USA about 6 months and for Middle east about 3 months time to recover the entire cost of investment. Kindly refer CALCULATION CHART (EXCEL SHEET) add local values and usage to arrive at the ROI.
click here for INDIA, USA , KSA, UAE.
39.Why Instant water heater?
Because it provides you continuous supply of hot water instantly.
40. Capacity Water Heater?
The water heater does not have any storage. It is instant.
41. I have hard water in my house, will my Water Heater be affected?
reThink all wet parts are made of Stainless Steel, or Copper or Ceramic which ensures that the scale build up does not happen. (Refer next point)
42. Can your water heater withstands hard water?
reThink has Stainless steel, or ceramic contact part and the heating element does not come in contact with water is capable of withstanding hard water. further details can be found HARD WATER SOLUTIONS.
43. Shower handle getting blocked?
The Nozzle are patented design where in they do not clog due to hard water even after very long use. (Refer Point 41 & 42)
44. What are the safety features in your water heater?
reThink has host of safety features & are given in Comparision with other Heater
45. What is the warranty period on your water heater?
1 Year
46. Installation
47. How Do I Measure My Water Heater’s Efficiency
You can compare your power & water bill on month to month basis or you can take note of water & power usage from the unit itself.
Is your heater certified ?
48. Certifications
Our products are certified for the following:-
All Certificates details mentioned here in with all technical data & information are available on web site: www.khuba.in
RETHINK products have been tested and approved by CE, CE EMC, CE LVD, IEC CB & GCC. Details are available on web site.