Water Heater / Geyser Buying Guide India
Simple Steps
you follow to buy a water heater are as follows:
What you would find in the market is branded and unbranded water heaters
and almost similar features but how would you choose the right product for
your house.
Here is a small quick guide for you to help pick up the right water
heater.
Points to be noted :
Point No: 1 - Do not buy unbranded water heaters Its
just like investing your money on a wrong stock or mutual fund. A
branded water heater can offer you not only guarantee safety, but also good
customer support and service. Unbranded water heaters may be lucrative in terms
of the price, but many of the water heaters may not conform BIS standards,
BEE energy star rating, and may not have an ISI mark and in
some ways they might be unsafe . A Tank is the heart of a water
heater, Beware of Brands which do not mention what their tank is made
up of as they use Mild Steel or Other Metals which are priced
Cheaper which consume double the power due to longer heating time , your
electricity bill also depends on the product you buy
Point No: 2 - Location of installation of the water heater is very important.
People living near the coast have to take corrosion into account. Saline water
can also corrode internal parts of the water heaters.
eg :
borewater (apartments), hard water areas (city out
areas), salt water areas (costal areas). So the best
option here would be a water heater with a Fibre
outer body (ABS) and a complete internal copper Assembly set up. Copper has
special anti corrosive properties that prolongs the life of the water heater
and saves energy and copper is a good conductor of heat.
Point No: 3 - Domestic Set Up The model of water heater which you buy is again
based on what kind of a residence you have independent house / small apartment
(less than 5 floors) / high rise building and how many people require hot water
etc.
If you are living a bachelors life or with other fellow bachelors an instant
water heater is the best option. You don't have to keep reminding yourself to
turn off the heater and you wont
waste electricity.
If you are living with a family in an independent house a Solar Water Heater is
an option, this is 100% electricity free and the most green
way to go. A little expensive in terms on initial investment but lot of
national banks in the country are offering interest free loans so finance is
not an issue. The basic recommended capacity is the 100 litre
per day.
In Solar water heaters there are two technologies the conventional flat plate
collector and the Vacuum Tube Model. Both of these cost the same but the vacuum
tube model is preferred because its replacement cost is cheaper in case of
damage to the solar tube and also because it can absorb infra red rays so
heating takes place till late in the evening and on cloudy days as opposed to
the other model which requires direct sunlight.
If you are living in an apartment then a electric
storage water heater is the best option. A 25 litre
model is ideal for a family of four, 35 litre for a
family of 6 so on and so on. If your bathroom ceiling is low or you have a
false ceiling or a attic then a horizontal water heater would suite your need
in terms of space but if you have enough space a vertical is always suggested
cause in a horizontal water heater you would loose
5-8 litres of hot water from the total
capacity.
If you are living in a multi-storied high-rise building then chances of a
pressure pump being installed to make sure water reaches all the flats. This
can cause problems to the water heater due to high pressure conditions which
normal storage water heaters cannot withstand. Opt for a water heater that has
extra thick insulation in the tank and a capability of withstanding High
Pressure depending on the pressure of the pressure pump in the apartment.
A gas water heater is a good buy if you have your gas cylinder placed outside
the bathroom. Ideal for the kitchen because thats where the gas cylinder is located or if you
have extra ventilation.
(NOTE : GAS WATER HEATERS ARE NOT SAFE IF PLACED
INSIDE THE BATHROOM DUE TO CARBON MONOOXIDE FUMES EMITTED BY THEM).
Point No: 4
Safety and Quality Features that you should look out for
1. BIS / ISI mark : The basic requisite for accepted
safety and quality standards
2. Warranty on tank and other critical components
3. 5 star rating is preferred.
4. Thermostat for Auto Cutoff at 60degree so you can use a mixer to control the
output of cold water
5. Thermal Cut out / Thermal Plug and Semi return
device- a fail safe device to prevent dry
heating
6. Copper Heating Element : Heats the water very fast
compared to any other coil (EASILY AVAILABLE) and shock proof
7. PUF insulated tank : Heat Retention is longer
8. 2-in-1 pressure cum release valve : Ensures
positive and negative pressure is not created inside the tank -
9. BIS APPROVAL is most important factor so that in terms of energy consumption
you don't land up paying more on electricity BILLS.
10. Check for BEE Label too. ( Recently BEE
has Rated brands which state the standing loss of a water heater ). Look
for 5 star rating.
Most of the leading brands will have the features mentioned above, the consumer
voice survey, Power rating chart by ISI is a good guide to help you
in choosing good buys namely Regency, Venus ,
Bajaj and Usha.
Online BIS Website : www.bis.org.in
Online BEE Website : http://www.bee-india.nic.in/
Online BEE Comparision : http://waterheater.weebly.com/bee.html
Table:
What does running a geyser cost us?
The test
results below state the same.
Tested
According to ISI
|
|
Standing
Loss of Energy in a Day (kWh/24
hrs) |
What
Energy Rating they would Get according to BIS Draft Standards |
Actual
Cost (in Rs) of Running for a Day (@
Rs 4 per unit) |
Actual
Cost (in Rs) for Running for a Year (@ Rs 4 per unit) |
What
You Over-spend (in Rs) in a Year on (0.79
kWh/24 h as standard) |
|
Remson |
0.79 |
5
Star |
3.16 |
1153.40 |
--------- |
|
Bajaj |
1.028 |
3
Star |
4.11 |
1500.
88 |
347.48 |
|
Thermoking |
1.052 |
3
Star |
4.20 |
1535.92 |
382.52 |
|
Johnson |
1.098 |
3
Star |
4.39 |
1603.08 |
449.68 |
|
Usha |
1.24 |
2
Star |
4.96 |
1810.4 |
657 |
|
Venus |
1.252 |
1
Star |
5.00 |
1827.92 |
674.52 |
|
Racold |
1.266 |
1
Star |
5.06 |
1848.36 |
694.96 |
|
Spherehot |
1.283 |
1
Star |
5.13 |
1873.18 |
719.78 |
|
|
1.41 |
Poor |
5.64 |
2058.
6 |
905.2 |
|
Hotflo |
1.447 |
Poor |
5.78 |
2112.62 |
959.22 |
|
DIFFERENCE BETWEEN WATER HEATER DRUMS Check for More Details : http://www.google.co.in/search?hl=en&q=copper+definition&btnG=Search&meta= Check for More Details : http://www.keytometals.com/Article16.htm | ||||
|
Differences |
Copper |
Mild Steel |
Glasslined Mildsteel |
Stainless Steel |
|
Superior Corrosion Resistant |
100% |
30-40% |
60-70% |
70-80% |
|
Durability and Reliability |
Yes |
No |
No |
No |
|
Reusability |
Reusable Even after 10 years |
NotResuable Highly Corrodes |
Not Resuable Highly Corrodes over a period of 2-3 years |
Not Resuable |
|
Life span |
15-20 years |
6-8 years |
8-10 years |
6-10 years |
|
Good Heat Conductor Which container makes it more power saving if well insulated ? |
100% |
30% |
30% |
40% |
|
Pressure Withstanding Capacity |
Max 7 Bar 80 Psi |
Max 8 Bar 90 Psi |
Max 9 Bar 100 Psi |
Max 7 Bar 80 Psi |
|
Resale Value |
60-70% |
Use and throw |
Use and throw |
Use and throw |