Hotel · China
Hanting Hotel, Jinjiang District, Chengdu
4 × commercial gas storage water heaters (model RSTD99-320)
View project →
Factory in Dongying, Shandong, China · Since 1994
Commercial Low-NOx Condensing Gas Water Heaters
Full premix combustion with NOx below 30 mg/m³ and up to 107% thermal efficiency on condensing models.
2 yearsProduct warranty
272Project references in China & overseas
< 30 mg/m³NOx on premix low-NOx and condensing models
Up to 107%Thermal efficiency on condensing models
Product range
Commercial water heaters & boilers
Published specifications for every model, to support distributor stock decisions and project specification.
5 product families
Gas water heaters & boilers
CLASSIC storage water heaters, low-NOx PLUS and condensing PRO storage water heaters, premix fire-tube boilers and stainless steel condensing boilers.
Explore gas range →
3 product families
Electric water heaters & boilers
Commercial electric storage water heaters, large-capacity electric boilers and floor-standing electric heating boilers for sites where electric supply is preferred.
Explore electric range →Who we work with
Built for B2B partners
Distributors & importers
Published specifications for every model, to support distributor stock decisions. Gas type, voltage and other market-specific requirements are confirmed for each order.
Browse the product range →MEP contractors
Each product page lists capacity, heat input or power, hot water output, connection sizes, dimensions and weights, so you can specify and compare models.
See project references →OEM brand owners
For brand owners who want to sell commercial water heaters or boilers under their own brand. Customization can be discussed case by case.
OEM & private label →Project references
Featured projects
Hotel · China
Beijing Lavande Hotel (Xianqiao Branch)
7 × commercial electric storage water heaters (model OTME500-24)
View project →
Hotel · China
Xi’an All Seasons Hotel (Zhangba East Road Branch)
4 × outdoor commercial gas storage water heaters (model RSTW99-320)
View project →
Hotel · China
Bengbu Junhe Hotel
2 × commercial low-NOx condensing gas storage water heaters (model RSTQ99-379L)
View project →Manufacturing
Factory capability
Our 2,000 m² factory in Dongying produces commercial water heaters and boilers. Production equipment includes enamel production lines, CNC punch presses, laser cutting machines, CNC bending machines, robotic welding systems and electrophoretic coating equipment. An in-house R&D team works on product development.
- Water heater tanks in Baosteel BTC340R enamel steel with a double-layer BLUE-ARMOR enamel coating
- Tank walls sandblasted before enameling; finished tanks pressure tested
- Full premix metal fiber surface combustion on low-NOx and condensing models
