In China, the market for gas boilers is growing significantly at the moment. One of the largest boiler manufacturers and a pioneer in development is Guangdong Hause Thermal Energy Equipment Co., Ltd.
The company, based in Huangpu, employs 226 people and has a production capacity of around 300,000 boilers per year. Among them are appliances for both residential and commercial customers. “We are a high-tech company that combines the manufacture, sale, and installation of residential and commercial heating equipment and intelligent control systems under one roof,” is how Xiaofeng Wu, General Manager at Hause, describes the company.
For high-quality products, you have to start with the suppliers, says Wu: “After all, with the components from our suppliers we’re already buying in advanced technologies.” This profitable business relationship was abruptly shaken in the spring of 2020. When the pandemic struck and, in addition to the movement of people, the movement of goods to China became subject to increasingly strict rules, Hause faced problems: The Italian manufacturer of a gas blower used in Hause boilers was no longer able to deliver on time.
“Local for local” saves the day
But why go far afield, thought Hause – and looked around on the domestic market. That’s where they found ebm-papst. “We wanted a world-renowned manufacturing company, an industry champion,” says Wu. ebm-papst has had a presence in China with a headquarter in Shanghai since 1996, which is where the inquiry from Hause ended up. “We were invited to a meeting about Hause’s requirements,” recalls Jie Jiang, Market Manager at ebm-papst China. For a long time, ebm-papst has been pursuing the “local for local” idea in China, in other words, producing locally for the Chinese market.
We wanted a world-renowned manufacturing company, an industrychampion.
Xiaofeng Wu, General Manager Hause
Hause was initially only interested in a gas blower. “During our discussions, however, we convinced Hause that a system solution would make more sense,” Jiang recalls. In the meantime, another supplier had also experienced delivery problems – and Hause commissioned the system solution. “Up to that point, we had relied on different suppliers for the gas blower, the venturi, and the valve. China’s vast territory and complex climate were the reasons for this; in addition, the gas quality varied greatly in some cases. Accordingly, we had to design the boilers individually. But the system solution from ebm-papst was ultimately able to guarantee us security of supply, premium quality, and an improvement in our products,” says Xiaofeng Wu, summarizing the decision process.
First system solution for ebm-papst in China
“We already supplied Hause in the past with individual components, such as blowers,” says Key Account Manager Alexander Remmele at the German site of Landshut, who has already visited Hause in China twice himself. The order for a system solution for domestic boilers sold under the brand name Boroa was a huge delight for him and his colleagues. “This is the first time we have supplied a system solution for a Chinese customer,” says Remmele.
But first, some initial tests were necessary. Hause provided ebm-papst with a sample boiler, on which measurements were then taken. Initially, there was some noise generation, which Hause did not want, because after all, the boilers would later be installed in private households. Now international collaboration was required on the part of ebm-papst: “There was a close exchange between us and our Chinese colleagues,” Remmele recounts.
Together, they discovered that the installed venturi was responsible for the noise, and its design was then optimized. “We changed the overlap of the venturi with the diffuser integrated in the housing,” says Remmele. Ultimately, Hause discarded this first variant again because the company wanted to build a narrower unit by changing the installed heat exchanger. “We provided support in this respect too, and together we found a solution to meet the high modulation requirements.”
“Collaboration Plus” now and in the future
Hause was impressed with the solution that had been found and signed a supply contract in March 2022. “By choosing the fully premixed condensing system solution from ebm-papst, we can guarantee consistently high product quality for our boilers,” says Hause General Manager Wu with satisfaction. The system solution can handle a wide range of gas qualities and always ensures optimum combustion. There is now a “Collaboration Plus” with ebm-papst, as Wu puts it. “By strengthening this, we will not only enjoy greater economic benefits, but will surely also advance the industry,” he says with conviction.