The year went to the air-conditioning season Xi'an central air conditioning, a wide variety of air conditioning on the market exactly how to choose? In the end is a good frequency, fixed frequency or good? I believe some consumers are more confused, sometimes just listening to something the promoters of the central air-conditioning agents in Xi'an, the hasty purchase. Buy and not buy Xi'an central air conditioning Which is good, he said operator himself. So buy air time, and said the air conditioning should be some understanding. Now the market with air conditioning, basically divided into two types: fixed-frequency air-conditioning and inverter air conditioner. So, the concept of fixed-frequency and frequency, consumers really understand it? If the building renovation costs 2,500 yuan per square meter to 3,000 yuan, public building energy efficiency market size of up to about 50 trillion yuan. In the Department of Housing and the initially identified nearly 40 public buildings energy-saving major cities to major cities in the next two years each block public buildings energy-saving project area 4,000,000 square meters, market size of 4,000 billion yuan may be. The main aspects of building energy-saving are: to improve the external structure of the building, change welfare as household heating metering and charging, heating and heat energy saving, energy-saving air conditioning cold source, energy-saving heating pipe network, using the new heat source. Xi'an, central air-conditioning installation of central air conditioning _ _ Xi'an Xi'an Hao Electrical and Mechanical Services provided by the Xi'an Hao Electrical and Mechanical Technology Limited. Xi'an Hao Electrical and Mechanical Technology Co., Ltd. (www.029hfkt.com/)(www.029hfkt.com) strong, credible, in Xi'an in central air-conditioning industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Electrical and Mechanical Xi'an Hao into the brilliant and you work for a better future!