When choosing electrical water heaters, many people are dazzled by all kinds of products, not knowing how to make a choice. In fact, if you want to select the right water heater, it is very easy as long as you have adopted the right way. Let’s share the experienced sayings of the netizens. Electric water heaters, according to different heating principles, are divided into the thermal heating and thermal storage. Other more new electric water heaters are accepted by consumers as well.
Among the new type water heaters, the most typical are instant electrical heating and heat pump heating (air sourced or water sourced). Air source heat pump gains heat from air. At the ambient temperature of 20℃, the energy efficiency ratio (EER) to heat a container of 150L can reach higher than 3.2. Its heating efficiency is as 3.2 times high as ordinary water heaters, thus remarkable energy-saving effect can be received. Instant water heater virtually has no heat loss through the thermal insulation, so energy can be better conserved, and it is one of those rising types.
But in normal conditions, users are suggested to choose normal water heater of positive displacement. As for the hot-type electric water heaters, it is recommended that only families with large power meters can consider using this product and air-source heat pump can be considered as to the larger villa type chamber. Therefore, taking the limits of environment and technical maturity into consideration, this book will chiefly focused on traditional water storage heater(displacement-type), and advises most families take time-tested and technically mature heat storage heater as their first choice.
The capacity of storage-type electric water heater ranges from 5L to 3000L, including different categories. The manufacturing technology has totally matured and different technical functions can meet customers’ requirements. Generally speaking, the heaters of minitype are mainly used in washing dishes in kitchen and washing hands in bathroom; the heaters of 40L to 80L are mainly used in bathing for families with average income. Large-size electric water heater with more than 100L volume can be mainly used by users who own several bathrooms in villa or houses with duplex structure.
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