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Vacuum-pipe collectors are the top choice sun collectors in the latest solar installations. The sun systems with vacuum-pipe technology allow for year-round exploitation and have excellent thermal insulation properties. The vacuum-pipe sun collectors using a "heat pipe" absorb maximum solar energy, reduce heat loss, and maintain their performance even during deteriorated weather conditions (mist, rain). The heat-pipe technology represents the latest development in solar systems. The vacuum-tube collectors have solid advantages over the flat-panel sun collectors.

• higher efficiency quotient – 2 to 5 times better performance of vacuum-pipe collectors in summer and winter months
• high-quality borosilicate glass tubing surface resistant to very low temperatures
• enhanced wind-resistance due to the tubular construction of the vacuum-pipe collectors
• greater thermal insulation of tubular collectors over flat-panel ones
• higher transmittance from the collector surface to the ambience
• higher maximum attainable temperature of vacuum-pipe collectors
• easy mounting and maintenance
• high effectiveness in overcast weather (150-200 W)
• anti-freeze, antistatic, water-resistant capabilities
• rustproof
• hail-resistant surface
• minimize heat loss

1. room thermostat
2. pump
3. pump
4. output
5. open expansion tank
6. ventilation pipe
7. check valve
8. automatic control device
9. hot water
10. safety valve
11. to the radiator
12. pump
13. recycled back from the radiator
14. from the boiler
15. to the boiler
16. limiter
17. expansion vessel
18. pressure reducer
19. city water

1. solar collector
2. water heater
3. cold water tank