It's difficult to get a man to understand something when
his salary depends on his not understanding of it.
When choosing electrical water heaters, many people are
dazzled by all kinds of products, not knowing how to make a choice.
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good rules of thumb from cyber-pals. According to different heating
principles, the electric water heater can be divided into varies
kinds from thermal heating, thermal storage type to heating
dual-use type. The new electric water heaters are more and more
accepted by consumers.
Among the new type water heaters, the most typical are
instant electrical heating and heatpump heating (air sourced or
water sourced). The heat of air-source heat pump is mainly come
from air. In heating a bottle of water, its average heating ratio
is as high as 3.2, which means its efficiency is 3.2 times that of
an ordinary one under a temperature of 20℃. Its energy
reservation effect is rather prominent. The start and heat effect
basically does not lose any thermal heat. The energy can be used in
a scientific way. This type of product is one of the electric water
heaters which are on the rapid rising.
But in the common situation, the common positive
displacement water heater is recommended to customers. The instant
heat water heaters are recommended to the families with high power
ammeter and the air-source heat pump heaters could be considered in
the villas that occupies large area. Therefore, in view of the
restriction of environment and degree pf technique maturity, the
book is mainly introduces the traditional positive-displacement
products, most families are recommended to consider the stored
water heater with long history and mature technique.
Positive-displacement water heater, with the volume
ranging from 5L to 3000L, has various styles, and its manufacturing
technique is completely mature enough to meet the requirements of
users. Generally speaking, electrical heaters with a volume of 10L
are mostly used for cleaning in the kitchen, while ones with a
volume between 40L and 80L are mostly used for baths in low-income
families. And those with a volume of more than 100L, is mostly used
in mansions or duplicate suite with more than one
bathroom.
Temperature control methods include mechanical and
computerized. Mechanical temperature controls use thermostats, with
features of: activation temperature can be adjusted steplessly
within certain range; easy operation; high reliability; economical
price; suitable for common families. The disadvantage is the way of
temperature control is single so it can just achieve cyclic
heating. Computer type is divided into digital display type and NC
type. If users pursue one put, it is suggested to choose digital
display products.
Digital display panel LCD display is used to display
operating modes, heating condition, and present temperature, set
temperature, set menu, clock, time period, fault codes and other
information, we can use on-board buttons to set operations. In the
second half of 2007, users can enjoy the benefits brought by new
national standards of electric water heater. Users can know
different qualities of electric water heaters from their name
boards. It is because new international targets classified the key
targets of products into different grades to show the differences
of quality in each product.
After get corresponding grading authentification,
enterprises can show it to consumers in market terminal sales
through identification inscription as basis to recommend products
of good performances. In line with their performance, electrical
heaters are rated into A,B,C,D and E five grades, among which, A
grade is the highest while E is the lowest. Therefore, users could
tell the quality grade by merely checking rating plate upon
choosing.




