"99" This is a professional HVAC Changsha / Hunan HVAC Company - HVAC Engineering Co., Ltd. Hao long Sharui free customer service phone, long Sharui Hao HVAC engineering company founded in 2005, is specialized in MERCOSUR: households heating systems, household-type floor heating system, central air conditioning, central hot water system, home central HVAC system services integrated professional engineering company, the predecessor company has been engaged in the HVAC market in the Northeast. 
 Regal Corporation to radiator heating, radiant floor heating, warm central air conditioning (ie heating bath Trinity), central hot water systems, home-based central integrated system works. Service network covering Hunan, Hubei, Jiangxi, Jiangsu, Zhejiang and Guangdong in the northern region. Since its establishment, has a huge customer base, access to the full affirmation of the market, and established a perfect service system. 
 In "good faith, the customer first" business purposes, careful management and constant innovation, and strive to build a suitable market in southern China Southern climate and comfort features for the South building heating brands for the masses to provide a safe and natural, health comfortable, warm and comfortable living space for people to stay away from the cold winter and hot summer, to get people to truly experience the ideal of the perfect life. 

 Currently, China's independent heating users, most people use the water to warm, that is, heating with natural gas boiler combustion. Warm water is not new for the northern residents, while in winter no stranger to the costs incurred plumbing. For households in the south, may be a little strange some, but it is the highest penetration rate in the southern market, but also the most reasonable. It is noteworthy that, reasonable design and the boiler to warm the combustion efficiency is the key factor. For the use of advanced boiler technology, the annual cost of gas is not high relative to the boiler combustion efficiency is much lower. 
 So, here we recommend customers to buy warm, it should be more use from the product quality and cost to be considered later. According to the majority of user feedback, Germany, Vaillant, Viessmann boiler is better, but more expensive, relatively speaking, Italy Hermann boiler performance and combustion performance is very good, is the high cost performance products. 
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