1.Copper U-tube, increasing thermal efficiency by *0% 2. Anti-electric wall technology, safe and reliable
3. Anti-dry, anti-overheat, hightemperature limit protectiontechnology
4. Electric heating, enjoying warm shower every day
5.Excellent price versus performanceratio
6. Double-loop cycle, the glass tube never scales
7. Completely anti-freezing, anti-burst
8. Full worry-free service