But as air-source heat pumps (also known as air-to-water heaters) became more popular, a number of hidden issues started to emerge. People began to question the reliability and quality of these products. Among the most common complaints from consumers is the problem of corrosion and scaling in the hot water tank. In fact, this issue is closely related to the geographical conditions in many parts of our country. A large number of regions are located in saline-alkali areas or coastal zones, where the chloride ion content in the water is high. This leads to severe corrosion of copper pipes, which can eventually cause leaks and even render the unit unusable.
As a relatively new product, air-source heat pump water heaters lack sufficient consumer awareness and proper after-sales service. This has caused confusion and frustration among users. So, how can we address the corrosion issue?
First, it's important to determine whether the local water contains chloride or sulfate ions. A simple way to check is by observing the water—if there's no moss growth, it might indicate higher salt content. Second, corrosion typically occurs at the welding points. If the welding is uneven or exposed to oxidation during the high-temperature process, it becomes highly susceptible to corrosion. Using gold-coated or stainless steel welds can significantly reduce this risk.
When problems arise with the product, the first step should be to contact the seller immediately to minimize losses. At the same time, manufacturers should proactively address common issues by providing preventive measures and solutions to consumers. This not only improves customer satisfaction but also helps build trust in this emerging technology.
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