As global heating efficiency standards continue to rise, overseas energy-efficiency regulations such as the EU ErP are becoming increasingly stringent. With its high efficiency and low emissions, the Fully Premixed Condensing Gas Boiler is becoming an important choice for residential, villa, and commercial heating projects.

So, how can a Fully Premixed Condensing Gas Boiler achieve thermal efficiency above 100%? The answer lies in two key technologies.

1. Precise Fully Premixed Combustion

A Fully Premixed Condensing Gas Boiler uses a variable-speed fan and gas proportional valve to precisely mix gas and air before combustion, and then delivers the premixed mixture into the combustion chamber.

Compared with conventional atmospheric combustion, fully premixed technology enables more precise and complete combustion, improving fuel utilization while effectively reducing carbon monoxide and nitrogen oxide emissions for cleaner, low-NOx operation.

2. Flue Gas Latent Heat Recovery

After combustion, conventional boilers discharge a large amount of high-temperature flue gas directly, resulting in the loss of the latent heat carried by water vapor.

A Fully Premixed Condensing Gas Boiler uses condensing heat exchange to lower the flue gas temperature to the condensation range. This allows water vapor to condense and release its latent heat, which is recovered to heat the heating return water and further improve energy efficiency.

The heating value of natural gas is generally expressed as Higher Heating Value (HHV) and Lower Heating Value (LHV). Conventional boilers mainly utilize the LHV, while condensing boilers can additionally recover the latent heat contained in water vapor. Therefore, when efficiency is calculated based on LHV, a condensing boiler can achieve a thermal efficiency above 100%, with some models reaching 104%–110%.

3. Baedin Fully Premixed Condensing Gas Boiler

Baedin Fully Premixed Condensing Gas Boilers cover a power range of 20–60 kW and are suitable for residential, villa, and commercial heating projects. Our products have obtained CE and ErP certifications.

For different markets in North Africa, Central Asia, and the Middle East, we can customize product adjustments according to local gas types and climatic conditions, providing overseas distributors and engineering customers with complete boilers, spare parts, and technical support.

Key Product Advantages

High Efficiency & Energy Saving: Thermal efficiency of up to 109%, helping reduce gas consumption and potentially cut gas costs by 20%–30%. With more than 10,000 Baedin boilers in use across China, our products help thousands of users save on annual gas expenses.

Low-NOx & Eco-Friendly: Fully premixed combustion technology enables low-NOx emissions and cleaner operation.

Stable Hot Water: Precise temperature control provides a more comfortable domestic hot water experience.

Smart Control: Supports timed heating and remote control via a mobile APP.

Low-Noise Operation: Optimized combustion and sound insulation design create a quiet and comfortable indoor environment.

Reliable & Durable: High-quality core components enhance the stability and reliability of the entire system.

Easy Operation: A touch-control panel and large digital display make operation simple and intuitive.

Underfloor Heating Compatible: Low-temperature return water conditions help maximize the benefits of condensing heat recovery.

Global Adaptability: Products can be adjusted according to different gas types and local operating conditions.

Driven by global energy-saving and emissions-reduction initiatives, fully premixed condensing technology is becoming an important development trend in the heating industry. Through precise combustion and flue gas latent heat recovery, the Fully Premixed Condensing Gas Boiler can further improve energy utilization while reducing emissions, providing users with a more efficient and environmentally friendly heating solution.