About Furama Hotel Dalian
Furama Hotel Dalian is a luxurious five-star hotel with a long history in northeast China. This landmark 30-storey building houses a total of 620 guest rooms, making it one of the largest and most prestigious hotels in the region.
With such a large operation, maintaining consistent water quality across all floors is a significant challenge. Guests expect clean, clear hot water for bathing, spotless bathroom fixtures, and reliable comfort. The hotel was experiencing persistent problems: rusty water from hot water pipes, unsightly scale buildup on shower heads, and scaling on critical heat exchanger fins—all affecting guest satisfaction and operational efficiency, particularly on floors 12 through 25.
Storeys
Guest Rooms
Floors Resolved

The Challenge: Rusty Water & Scale Across 14 Floors
The hotel faced a combination of serious water quality issues affecting guest experience and equipment efficiency:
- Rusty Bath Water: Guests on floors 12-25 complained of discolored, rusty water from hot water pipes.
- Shower Head Scale: A thick layer of scale would build up on shower head surfaces, giving them a dirty, neglected appearance.
- Heat Exchanger Fouling: Hard scale between the fins of the heat exchanger was affecting heat transfer efficiency.
- Blocked Outlets: Scale buildup was clogging shower head nozzles, reducing water flow and pressure.
Installation Details
Location
Hotel: Furama Hotel Dalian
City: Dalian
Country: China
Building: 30-storey West Building
Vulcan Installation
Model: Vulcan S25
Location: Inlet pipe of hot water volumetric heat exchanger
Floor: 31st floor of West Building
Pipe: DN80 copper pipe (3 inches / 80 mm)
Scope: Solves scale problems on floors 12 to 25
Visible Results After 10 Months
Heat Exchanger Fins
BEFORE
The hard scale between the fins affected heat transfer efficiency and rusting caused rusty water problems.
AFTER 10 MONTHS
The fins were not cleaned before installing the Vulcan S25. 10 months later, the hard scale was removed and some areas revealed the original copper colour.
Guest Room Shower Heads
BEFORE
After using shower heads, a layer of scale would build up on the surface, giving it a dirty look.
AFTER 10 MONTHS
No more scale build-up on the surface of the shower heads, and the water outlet is no longer blocked.
Benefits for Large Hotels & High-Rises
Eliminates Rusty Water
Clear, clean hot water for all guests
Scale-Free Fixtures
Shower heads stay clean, no clogs
Heat Exchanger Efficiency
Restored heat transfer, energy savings
Cost Savings
No nozzle replacement, reduced cleaning
Technical Specifications: Vulcan S25
| Max Pipe Diameter: | 2.5 inches (63 mm) |
| Max Flow Rate: | 125 GPM (28 m³/h) |
| Power Consumption: | 5 - 10 W |
| Connection: | Non-invasive (wraps around pipe) |
| Maintenance: | Zero |
| Installed On: | DN80 copper pipe (3"/80mm)* |
*The S25 can be used on pipes up to 2.5 inches (63 mm) for optimal performance. Installation on a DN80 pipe may require evaluation.
*Login for pricing and exact specifications.
One Unit, 14 Floors Transformed
The Furama Hotel Dalian case study is a powerful demonstration of Vulcan's ability to solve complex, multi-floor water problems from a single installation point. By treating the water at the heat exchanger inlet on the 31st floor, the S25 eliminated rusty water, removed stubborn scale from heat exchanger fins, and kept shower heads clean across 14 floors. The visible before-and-after proof after just 10 months speaks for itself—saving energy, reducing maintenance, and restoring guest satisfaction.
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About the Author
Waslix (Vulcan Mineral Descaler) provides non-chemical, maintenance-free scale prevention using impulse technology. This case study documents the installation of a Vulcan S25 at the Furama Hotel Dalian in China, solving rusty water and scale problems on floors 12-25 with visible results after 10 months.
