In winter heating and daily hot water supply, fully premixed condensing wall mounted boilers have gradually become the preferred equipment for many households and commercial places due to their high efficiency and energy-saving characteristics. Compared to traditional heating equipment, fully premixed condensing wall mounted boilers have shown significant advantages in energy utilization and environmental performance. Understanding the working principle and core advantages of fully premixed condensing wall mounted boilers can help users choose heating solutions more scientifically.

1、 The core working principle of fully premixed condensing wall mounted boiler

The efficient operation of the fully premixed condensing wall mounted boiler is attributed to its unique dual technology of "fully premixed combustion" and "condensing heat exchange", which work together to achieve maximum energy utilization. It can be divided into three key stages:

1. Fully premixed combustion: precise proportioning, full combustion

Traditional wall mounted boilers often use "atmospheric combustion", where gas and air mix and burn inside the burner, leading to uneven mixing and insufficient combustion. The fully premixed condensing wall mounted boiler is equipped with a professional premixed device, which thoroughly mixes the gas with air in the optimal ratio (usually around 1:10) before entering the burner. This pre mixing method allows the gas to obtain sufficient oxygen during combustion, avoiding the production of harmful gases such as carbon monoxide due to local oxygen deficiency. At the same time, it significantly reduces the waste of unburned gas and improves combustion efficiency to over 95%.

2. Condensation heat exchange: recovering waste heat for secondary utilization

During the combustion process, a large amount of high-temperature flue gas is generated, and traditional wall mounted boilers usually directly discharge this flue gas outdoors, resulting in a significant loss of heat. The fully premixed condensing wall mounted boiler uses "condensation heat exchange" technology to install a condenser in the flue gas emission path. When high-temperature flue gas passes through the condenser, it exchanges heat with the cold water inside the wall mounted boiler, causing the flue gas temperature to drop from above 150 ℃ to below 50 ℃. At this time, the water vapor in the flue gas will condense into water and release a large amount of latent heat. After being absorbed by cold water, these latent heats will participate in the heating or hot water preparation process, further improving energy utilization efficiency. This is also one of the core technologies that distinguishes fully premixed condensing wall mounted boilers from traditional equipment.

3. Intelligent temperature control: dynamic adjustment, adapting to needs

To ensure operational efficiency and comfort, the fully premixed condensing wall mounted boiler is equipped with an intelligent control system. The system will monitor indoor temperature, hot water usage and other parameters in real time, and achieve dynamic temperature control by adjusting gas supply, air mixing ratio, and water pump speed. For example, during winter heating, if the indoor temperature is lower than the set value, the system will automatically increase the gas supply and combustion intensity, quickly raising the room temperature; When the indoor temperature reaches the set value, the system will reduce the operating load, maintain temperature stability, and avoid energy waste. At the same time, the intelligent control system can also achieve segmented combustion, starting only part of the burner when only a small amount of hot water is needed (such as hand washing), further improving the energy-saving effect.

2、 The core advantage of fully premixed condensing wall mounted boiler

With its unique working principle and technical design, the fully premixed condensing wall mounted boiler exhibits multiple advantages during use, meeting users' needs for energy conservation, environmental protection, comfort, and other aspects

1. Efficient and energy-saving: reducing energy consumption and usage costs

The biggest advantage of a fully premixed condensing wall mounted boiler is its high efficiency and energy saving. Through fully premixed combustion technology, the combustion efficiency of gas is significantly improved, reducing gas waste; At the same time, condensation heat exchange technology recovers waste heat from flue gas, further improving energy utilization efficiency. The thermal efficiency of some high-end products can even reach over 105% (calculated based on high calorific value). Compared with traditional wall mounted boilers, fully premixed condensing wall mounted boilers can reduce energy consumption by 20% -30%. Long term use can significantly reduce users' gas expenses, especially suitable for households or places with long heating cycles and high hot water usage in winter.

2. Environmental protection and low consumption: reduce harmful gas emissions

In terms of environmental performance, the fully premixed condensing wall mounted boiler performs outstandingly. Due to the thorough mixing of gas and air in advance, the combustion process is more complete, which can effectively reduce the emissions of harmful gases such as carbon monoxide and nitrogen oxides. Among them, the emission of nitrogen oxides can be as low as below 30mg/m ³, far below the national first-class emission standard (50mg/m ³), and the pollution to the atmospheric environment is even smaller. At the same time, the condensed water generated during the condensation process can be directly discharged after treatment, without causing additional burden on the environment, which is in line with the current trend of green environmental protection and can also help users contribute to environmental protection.

3. Comfortable and stable: Small fluctuations in water temperature, more even heating

Traditional wall mounted boilers are prone to large fluctuations in water temperature due to unstable combustion during operation, especially when using hot water, which may cause sudden changes in temperature and affect the comfort of use. The fully premixed condensing wall mounted boiler, through intelligent temperature control and segmented combustion technology, can accurately control the water temperature. The fluctuation range of water temperature can be controlled within ± 1 ℃, making it more comfortable to use hot water. In terms of heating, the system will dynamically adjust the operating load according to the indoor temperature to avoid sudden rises and drops in room temperature, maintain stable indoor temperature, and improve winter living comfort. In addition, the operating noise of fully premixed condensing wall mounted boilers is lower, usually below 40 decibels, far lower than traditional wall mounted boilers (about 60 decibels), and will not cause noise interference to daily life.

4. Longer lifespan: corrosion-resistant design reduces the risk of failure

The fully premixed condensing wall mounted boiler pays more attention to durability in material selection and structural design. The condensed water generated during the condensation process is weakly acidic. To avoid corrosion of internal components of the equipment, key components such as condensers and heat exchangers in wall mounted boilers are often made of corrosion-resistant stainless steel or oxygen free copper materials, which can effectively resist the erosion of condensed water. At the same time, fully premixed combustion reduces the generation of combustion carbon deposits, lowers the risk of component wear and failure, and extends the service life of the equipment. Under normal circumstances, the service life of fully premixed condensing wall mounted boilers can reach 15-20 years, much higher than traditional wall mounted boilers (8-12 years), reducing the frequency and cost of equipment replacement for users.

3、 Applicable scenarios and precautions for fully premixed condensing wall mounted boilers

1. Applicable scenarios: Suitable for various heating and hot water needs

The fully premixed condensing wall mounted boiler has a wide range of applications, suitable for heating and hot water supply in residential homes, as well as small commercial places such as small hotels, office buildings, shops, etc. For newly-built residential buildings, the installation of fully premixed condensing wall mounted boilers does not require large-scale renovation and can be adapted to various heating terminals such as underfloor heating and radiators, making it an ideal heating equipment; For the renovation of old residential buildings, if the original heating system meets the adaptation conditions and is replaced with a fully premixed condensing wall mounted boiler, it can significantly improve heating efficiency and comfort, while reducing energy consumption. In addition, for households with high demand for hot water (such as multi bathroom households and households with bathtubs), the efficient hot water preparation capacity of fully premixed condensing wall mounted boilers can also meet the demand, avoiding situations of insufficient hot water supply.

2. Precautions for use: Ensure stable operation of the equipment

To fully leverage the advantages of fully premixed condensing wall mounted boilers and extend equipment lifespan, the following points should be noted during use: firstly, regular cleaning and maintenance should be carried out, especially for components such as condensers and filters, to avoid the accumulation of dust and impurities that may affect heat transfer efficiency; Secondly, ensure that the installation of smoke exhaust pipes is standardized to avoid safety hazards caused by poor smoke exhaust. At the same time, regularly check whether the pipes are damaged or leaking; Finally, when the equipment is not used for a long time in winter, it is necessary to take anti freezing measures, such as keeping the equipment powered and supplied with water, or emptying the accumulated water in the pipeline to avoid pipeline freezing and cracking.

The fully premixed condensing wall mounted boiler has become the mainstream choice for modern heating equipment due to its advantages of high efficiency, energy saving, environmental protection, comfort, and long service life. By understanding its working principle and core advantages, users can more clearly determine whether the device meets their own needs. At the same time, through correct operation and maintenance during use, the device's performance can be fully utilized to provide stable and efficient heating and hot water services for homes or commercial places. With the continuous upgrading of technology, the performance of fully premixed condensing wall mounted boilers will be further improved, bringing users a better user experience and contributing more to the development of green energy.