1. Most economical collector for water heating;
2. Wide heating applications for water and house;
3. Large heating capacity from 500 to 100,000 liter;
4. Efficient direct hot water heating with big flow rate;
5. Strong adaptability to flat or slope roof installations;
6. Easy installation and connection with separated parts;
7. With anti-freezing protection it works well in -20℃ weather;
8. Applicable to active open loop system or thermo siphon system;
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