What kind of water heater is the most economical? Household water heaters are generally electric water heaters, liquefied gas water heaters, solar water heaters these types of impression solar water heaters should be the most economical, but the premise of solar energy is abundant sunshine, and our country is A large part of densely populated areas have a lot of time in a year is not to see the sun, in such cases, solar water heaters need electrical auxiliary heating, and also about the same as electric water heaters, power is also impossible.
The advantage of liquefied gas water heater is that it can open the heat, the bath time to wait for a short time, but in use due to higher gas prices, so the cost is higher, generally higher than electric water heaters and solar water heaters, coupled with its 1500 ~ 3,000 yuan price, can be said that not too cheap, and at the same time, liquefied gas water heater in case of pipeline cracking or lax sealing conditions lead to gas leaks, but also may lead to poisoning, deflagration and other dangerous.
Look at the electric water heater, although this is the most popular one, but it is not flawless, one is that it uses electricity as a heat source, water and electricity consumption is high, resulting in high electricity costs, the second is safety issues, electric heating Rods in direct contact with water, may have a safety accident, on the whole, the most cost-saving, safety should be the fourth generation of water heaters - air to water heaters.
Although it also requires electricity, air to water heater is mainly based on the 'anti-Carnot principle' can be understood as the inverse principle of air conditioning, the use of refrigerant to absorb free heat in the air, and then use the water heater compressor to compress this part of the heat, after After a series of actions, the heat energy is converted into high-grade heat to be used to heat the cold water. In the whole process, electricity accounts for only a small part, and the energy-efficiency ratio of the whole water heater can reach 4.0, which saves electricity.
The following to compare the electric water heater and air heater to the specific energy consumption
In general, an adult bathing need 50 liters of hot water in winter, a family of four conservative daily water consumption of 200 liters, the traditional electric water heater power of 1.5KW, according to 0.6 yuan per kWh to fully heat 200 liters of water 5.9 yuan a day, one month down the electricity is 177 yuan, which is still the ideal state of the market water heater tank is generally about 60 to 80 liters, which means that the need for multiple heating, of which the heat loss in which more than this number.
And then compared to the air to water heaters, the same is 200 liters of water, ultra-high energy efficiency ratio of 4.0, only 1.4 yuan per day, the cost of electricity, and air to the water heater for a greater amount of water to Mitra's 'name Rui' series Home machine, for example, the continuous water can reach 240 liters, the maximum temperature of 70 ℃, fully meet the needs of a family of four bathing, and hot water fast, without waiting.
In terms of safety, the air heater can be separated from the hydropower heater during operation, without combustion or exhaust gas, thus completely eliminating the potential safety hazard of the conventional heater.