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Flexible, Scalable Solar Hot Water Solutions for Villas & Medium-Scale Projects
The SOLETKS Split Pressurized Solar Water Heating System is an engineering-grade solar thermal solution developed for projects that demand flexible system layout, stable hot water pressure, and reliable year-round performance.
Unlike integrated thermosiphon systems, the split configuration separates the solar collector field from the pressurized storage tank, allowing each component to be installed in its optimal environment.
Designed for villas, high-end residences, and medium-scale hot water applications, the system combines controlled pump circulation, closed-loop antifreeze protection, and pressurized indoor storage.
Tank anywhere indoors, independent of collector
Antifreeze medium prevents winter damage
Consistent flow to all floors
Separates heat collection and water storage for higher comfort, better freeze protection, and flexible building integration.
Solar collectors on roof, storage tank and pump station indoors, connected through closed-loop antifreeze circuit. This decoupling overcomes physical and architectural limitations of integrated systems.
Particularly beneficial where roof load, aesthetics, indoor layout, or climate conditions are critical design factors.
Operates directly with mains water pressure, ensuring stable delivery to multiple outlets and floors without booster equipment.
Chosen to solve layout, pressure, and climate challenges that integrated systems cannot.
Optimal solar exposure while maintaining architectural aesthetics.
Consistent water pressure at all outlets, even with simultaneous usage.
Closed-loop antifreeze prevents freezing damage and seasonal degradation.
Each component plays a defined role within the hydraulic and control logic.
Flat plate or evacuated tube
Internal heat exchange coil
Circulation and safety devices
Intelligent management
Pressure regulation
Protection and fittings
All components matched for balanced flow, stable pressure, and long-term reliability.
Precise heat transfer, freeze protection, and stable system behavior.
Sensors detect difference between collector outlet and storage tank.
Controller activates pump, transferring heat through closed-loop antifreeze.
Internal coil transfers heat while potable water remains isolated.
Adapts dynamically to weather, reduces thermal stress, prevents stagnation and overheating.
System Flow Diagram
Control LogicWeather protected, better aesthetics
Closed-loop antifreeze circuits
Expandable for higher demand
Optimal placement for complex buildings
Connect with boilers, heat pumps
Higher complexity and cost—selected where performance stability outweighs simplicity.
Temperature, radiation, seasonal variation
Azimuth, tilt, mounting area
Daily volume and usage patterns
Durable, cost-effective for moderate climates.
High-efficiency for cold regions.
Stainless steel and enamel tanks with internal heat exchange coils. High-density insulation minimizes heat loss. Auxiliary electric heating for low solar periods.
Integrates pumps, safety valves, air vents, and insulation into one module.
Variable speed based on temperature differential
Pressure relief and expansion vessels
Automatic air vents for optimal circulation
Minimizes heat loss in hydraulic circuit
Integrated Pump Station
Components
Interface
DetailEvery component calibrated for integrated hydraulic reliability.
Digital Control Unit
User InterfaceManages pump operation, monitors temperatures, activates safety protections.
Auto start/stop on temperature
Real-time collector/tank tracking
Overheat, freeze, fault detection
Remote access and optimization
Expansion tanks, T/P valves, air vents, and check valves manage pressure and thermal expansion.
Stable system pressure
Automatic overpressure release
Maintain circulation efficiency
Prevent reverse flow
Design Philosophy: Every safety component positioned based on hydraulic analysis.
Collectors for optimal solar exposure; tanks and pumps indoors with maintenance access.
Orientation and tilt based on latitude
Protected with accessible service points
Minimized pipe runs, proper slope
Clear pathways for servicing
Critical: Installation quality directly impacts reliability.
Uniform flow and temperature stability at peak demand.
Safe indoor placement where rooftop tanks are restricted.
Reliable freeze protection via closed-loop antifreeze.
Expandable without redesigning the entire system.
Very small households, no indoor space, or simplicity priority.
Antifreeze circuit + indoor tank eliminates freezing risk.
Dynamic circulation + auxiliary heating for cloudy periods.
Prevents overheating through matched collector/storage sizing.
Adapts to European safety standards, high-end residential comfort, and EPC-driven flexible design.
Yes—core advantage. Improves safety, reduces exposure, simplifies maintenance.
Antifreeze medium in closed-loop circuit + indoor tank placement.
Yes. Mains pressure for multi-point, multi-floor stable supply.
Yes—electric heaters, gas boilers, or heat pumps.
Auxiliary heating compensates automatically via controller.
System-level testing on hydraulic compatibility, pressure stability, and control logic.
Clear warranty, long-term spare parts, technical docs throughout service life.
Validated design
Consistent quality
Lifecycle docs & parts
Flexible configuration
Cooperating with distributors, EPC contractors, and system integrators worldwide.
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