DAOU (Shanghai) Environmental Technology Co., Ltd. is a Sino-French joint venture.

It is headquartered in Nantes, France. The Chinese head office located in Shanghai, with two branches in Zhengzhou and Tianjin. It is one of the world’s leading manufacturers and marketers of direct-fired and indirect-fired forced air heaters, convection heaters and radiant heaters for livestock and poultry.

We provide a series of safe, efficient, energy saving, healthy climate solutions.


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"Our Engineers specialize in mechanical design, heat transfer, combustion, ventilation,Some of them have over 20 years of industry experience.we use a variety of tools to test fuel caloric valuation, gaseous constituents measurement, airflow, and combustion humidity, Combustion analyzers for CO, CO2, O2, NOX ,NO2 and gas chromatography for other hydrocarbons.

German TESTO® gas emission analyzer

Computational fluid dynamics (CFD) simulation software

2D and 3D computer-aided design (CAD) software"

Meet our Journey

Discover our remarkable events through the 16-year journey.

  • 2021 Outstanding Honor

    The National High-tech Enterprise

  • 2015 Manufacturing Improvement

    Our factory expanded to 4500m2 and most of our machines were updated for more automatic

  • 2010 Technological Breakthrouth

    We earned 10+ patents

  • 2008 2nd Quality Recognition

    We earned the ISO9001 certification after years of quality production

  • 2005 R&D Center Setup

    Our R&D team was established &came up with ways to improve the animal climate

  • 2004 Outstanding Partnership

    We partner with CP,DBN,TechBank in China,supplying climate solutions

  • 2003 Safety Recognition

    All our products are recognized by CE

  • 2000 Where Story Begins

    Company established

Heading For a Greener Future

DAOU cultivated a high-quality R & D team, holding many national patents and obtained ISO9001 international quality system certification, CE certifacation,The National High-tech Enterprise;The council member unit of China Animal Husbandry Association 。