Atmospheric Dual Heat Exchanger Condensing Boiler

Unlike traditional boilers that only utilize gross calorific value, this dual heat exchanger condensing boiler adopts a net calorific value calculation system. Through its dual-stage heat exchange structure, it fully recovers the latent heat of water vapor in combustion flue gas, recycling the vaporization latent heat generated during combustion and condensation processes to break the 100% thermal efficiency limit.
Heating system return water temperature is the decisive factor for condensing efficiency. To give full play to the dual heat exchanger’s heat recovery advantage, the return water temperature must be maintained below the 50°C dew point. The optional outdoor temperature sensor realizes linkage temperature regulation, keeping low return water temperature stable for long-duration high-efficiency operation.

Applicable Scenarios & Core Competitive Advantages

This dual heat exchanger condensing unit is compatible with two mainstream indoor heating terminals: traditional cast iron/steel radiators and low-temperature underfloor heating systems. It achieves the best energy-saving effect when matched with floor heating, reducing household and commercial gas consumption by up to 30%. Its core competitiveness lies in dual heat exchanger high-efficiency heat exchange, integrated condensing hot water technology and wide-range stepless power regulation.
Classified as a green low-carbon heating equipment compliant with Chinese and international emission standards, it reduces flue gas discharge temperature to cut invalid heat loss. It lowers nitrogen oxide emissions by 80% and carbon monoxide emissions by 90%. Rooted in China’s dual-carbon strategic layout, Baedin optimizes low-carbon heating equipment to reduce user carbon footprint and protect the atmospheric environment.

Structural Design & Performance Parameters

Designed per German manufacturing criteria and equipped with imported core components, the dual heat exchanger boiler integrates heating and hot water functions. It covers six power grades from 20KW to 40KW to fit buildings of different areas. Models of 32KW/36KW/40KW are standard-equipped with dual circulating pumps to boost pipeline water flow and realize uniform indoor heat distribution.
Adopting full premixed combustion technology cooperating with dual heat exchange system, the unit reaches 109% peak thermal efficiency, cutting daily operating costs by 15%–30% versus ordinary wall-hung boilers. The built-in DC variable frequency drive avoids frequent startup and shutdown in transitional seasons and low-load scenarios, achieving intelligent gas and power saving.
Supported by multi-point synchronous temperature detection, the boiler outputs constant-temperature hot water in 17±2 seconds with temperature fluctuation controlled within 0.5°C. The matched high-speed heating modules and high-precision sensors deliver instant, stable domestic hot water for comfortable daily use.
The casing adopts 800°C high-temperature resistant tempered glass panel, with anti-scratch surface and simple daily maintenance. A 19cm×17.5cm large white backlit LED screen displays real-time operating parameters and fault prompts intuitively. An optional variable-speed automatic circulation pump adapts to complex heating loops, and linkage with external hot water storage tanks is available for villas and large-space high water demand scenarios.

Core Components & Standard Configuration

The key imported components guarantee stable performance and extended service life, including: Italian original primary heat exchanger, dedicated ceramic fiber premixed burner, DC variable frequency fan, and Italy-made SIT gas proportional control valve. Full-set standard configurations: patented external air purification filter, memory alloy temperature-sensitive water channel, secondary stainless steel plate heat exchanger, heating system expansion tank, optional tempered glass/metal casing, water pressure gauge and transducer, 3-bar safety relief valve, manual drain valve and water level sensing sealing assembly.

Technical Specifications