Ariston is the world's leading provider of heating and hot water systems and services, headquartered in the northern Italian city of Fabriano, with sales in more than 150 countries and annual sales of 7 million water heaters and heating products. Ariston has done a very good job in electric water heaters in China, with a wide range of products and excellent performance. However, compared to the outstanding performance in electric water heaters, Ariston air energy water heaters are a little mediocre, and only two series of products have been launched. The 26H spli series has a level 4 energy efficiency, while the 27ER series has a level 2 energy efficiency, both of which are split models, and there are two options for 150L and 200L capacities.
 
Among them, the price of HF200/26H spli is about 10,000 yuan, the product introduces mature heat pump technology from Europe, adopts an upgraded flat tube condenser, increases the contact heat exchange area, effectively improves the heat exchange efficiency, and the unique titanium liner has excellent performance in compression and corrosion resistance. However, the low temperature performance of the product is not ideal, and the minimum operating temperature is only 7 °C, which is not suitable for most areas with cold winter.
 
The performance coefficient of HSF200H/27ER is 4.07, which reaches the national level 2 energy efficiency, and the ambient temperature range of the heat pump is between -7~43 °C, and the environmental adaptability is greatly enhanced. In addition, it is equipped with a heat pump heating and electric auxiliary heating dual source system, and the maximum effluent temperature can reach 75°C. The price of a 200-liter capacity water tank is around 14,000 yuan. It is worth mentioning that Ariston has the lowest warranty period among all the big brands, with only 1 year warranty.