1.
Exclusively adopts 「 SUS444 stainless steel solar collector」 from Japan. The material is specially designed for solar water heater and which is anti-chlorine, corrosion resistant and not easy to get water clog.
(1).
Comparison chart of SUS444 and SUS304
Testing
items
Testing
conditions
SUS 304 SUS 444
Corrosion
resistance test
42% MgCl2
Boil: 500hr
(溶接材 300hr)
Breakage
(<5h )
Normal
20% NaCl +
1% Na2Cr2O7•2H2O
Boil:500hr
Breakage
(<24h )
Normal
20% NaCl
Boil:500hr
Breakage
(<15h )
Normal
Salt spray test
1500ppm Cl-
100℃ 120hr
Breakage
(<120h )
Normal
Information from Japan Solar System,No.17
Type of
stainless steel
Corrosion
resistance
Corrosion
gap resistance
Reinforce
corrosion resistance
SUS 304 B B B
SUS 304L A B B
SUS 316 A A B
SUS 444 A A A
Information from Japan NTK Stainless Steel Co.,Ltd
Japan leading brands : YAZAKI, MATSUSHITA, HITACHI, KYOCERA, MITSUBISHI, NORITZ, CHOFU all adopt SUS444 Stainless steel.
(2).
Exclusively adopts SUS444 Stainless steel high efficient solar collector, big water volume, fast circulating rate, and not easy to get water clog.
Complete set design without bend.
Circulation is smooth.
Curving angle design jams
circulation and causing water clog.

2.
Adopt 「HDPE TANK」. No more water clog and easy to maintain and clean.
(1).
HDPE storage tank : no water clog.
(2).
Durable : sustains 350kg/cm2 force.
(3).
Giant cleaning hole : easy to clean water clog.
(4).
Approved eatable container by FDA.
Suncue
Other brand
Material
HDPE water tank
SUS304 stainless
steel water tank
Anti-corrosion
Excellent
No good
Anti-chlorine of running water
Excellent
Corrosive
Water clog
No water clog,
easy to clean

Easy to get water clog,
not easy to clean
Heat insulation
Excellent
Poor
Foreign experience
Adopt by Japanese leading brands; No. 1 choice for water tank
Phased out 30 years ago in Japan

3.
Thanks to numerous domestic solar water heater users who started to install Suncue solar water heaters since 20 years ago.
Installed in 1984 in Yi Lan
Installed in 1981 in Tao Yuau
Installed in 1986 in Xin Zhu
Installed in 1988 in Xin Zhu
Installed in 1980 in Ta Ya, Taichung
Installed in 1985 in Taichung
Installed in 1981 in Chang Hua
Installed in 1985 in Nan Tou
Installed in 1984 in PuLi, Nan Tou
Installed in 1982 in Yun Lin
Installed in 1981 in Yun Lin
Installed in 1980 in Jia Yi
Installed in 1981 in TaiNan
Installed in 1983 in TaiNan
Installed in 1984 in Kaohsiung
Installed in 1986 in PingDong

4.
Stand is designed carefully by professionals and can survive from big earthquake.
Zhu Shan, NanTou
Wu Fong, NanTou
Shui Li, Nan Tou
Cao Tun, Nan Tou
Nan Tou City
Nan Tou City
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