Gas water heater is the earliest water heater product, although with the development of other water heater products, the market share of gas water heater gradually declines, but at present many of the water heaters of ordinary families are gas water heaters, gas water heaters due to relatively low product prices, or possession of a certain market share. Follow the small series together to take a look at the gas water heater purchase and maintenance need to pay attention to some matters.
First, gas water heater basic knowledge and classification introduced
A gas water heater is a device that uses gas as a fuel to transfer heat to the cold water flowing through the heat exchanger through a combustion heating method to achieve the purpose of preparing hot water.
Gas water heaters have a variety of classifications. For example, gas water heaters can be classified into gas, natural gas, liquefied petroleum gas, and biogas water heaters. They can be divided into pre-standard water heaters and post-standard water heaters; they can be divided by water supply pressure. Can be divided into low pressure, medium pressure and high pressure water heaters; according to the exhaust method, can be divided into direct-row water heaters, flue-type water heaters, strong row of water heaters and balanced water heaters. Currently commonly used gas water heaters are generally classified according to the exhaust method.
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