Like Rinnai, Nengsu is an important representative of Japanese gas appliance manufacturers, born in the port city of Kobe, and its business covers a number of kitchen appliances, especially gas appliances and water heaters. The hot water equipment produced by it has been in the forefront of the Japanese market for many years, and the emphasis on environmentally friendly products has led to the award of "Environmental Optimization" by the Ministry of the Environment of Japan in 2009. Nengli entered the Chinese market very early, but its popularity and market share have not been high.
 
The energy rate is known for its advanced condensing technology, equipped with multi-connection multi-layer heat exchange coils and large-capacity condensate neutralizers, and the thermal efficiency can reach 103%. This figure is not outstanding compared to the high-end condensing furnaces of Bosch or Ariston, but compared with conventional products, the energy rate condensing furnace adopts an efficient heat recovery system and a full premix ratio adjustment method, which can recover and utilize the waste heat in the flue gas, and achieve a breakthrough in efficiency while saving energy and reducing emissions. However, it is worth mentioning that at present, the energy rate has not yet introduced condensing products into the Chinese market, and the products are mostly dual-purpose furnaces with secondary energy efficiency heating and domestic water, using traditional structure, and the distinction between products is not large, the main difference is power, which is suitable for different sizes of housing types.
 
GQH-30A4FFA priced at 12580 yuan, is a heating and hot water dual-purpose furnace, closed combustion characteristics and high-quality fans make it achieve a silent effect beyond ordinary products, temperature data and control interface are clearly displayed on the large screen of the fuselage, the operation process is simple, and the elderly at home can also use it freely.
 
The advanced combustion system gives GQH-30A4FFA a stable heating capacity, the precision control proportional valve with corrugated plate heat exchanger, and the use of microcomputer to control the combustion mode, the fire can be weakened to a small fire when it reaches the set temperature, and enters a constant state of heat preservation, which has the advantages of energy saving and high efficiency. For residents living in northern areas, the temperature below zero degrees Celsius in winter will damage the machine, and the anti-freezing function is essential, and the automatic cruise anti-freezing function of the GQH-30A4FFA can effectively prevent the internal components from being frozen and damaged.
 
Compared with Rinnai, the investment in the e-commerce channel is slightly insufficient, and the offline channel is a better choice for consumers who intend to buy the dual-purpose furnace.