Description
300L High Pressure Solar Water Heater Overview
Mains Pressure Performance: Delivers hot water at full household mains pressure (0.6MPa / 6 bar) for powerful showers and efficient appliance feeding .
High-Capacity 300L Storage: Ideal for large families (7-9 persons), homes with three or more bathrooms, guest cottages, or small businesses such as salons and restaurants .
Advanced Heat Pipe Technology: Utilizes copper heat pipes for rapid heat transfer, maintaining high efficiency even in cold conditions down to -35°C .
Indirect Heating Design: Water never enters the glass tubes—only heat is transferred via copper condensers, eliminating leakage risks and ensuring long-term reliability .
Superior Insulation: High-density polyurethane foam (50-55mm) ensures minimal overnight temperature drop, so hot water is ready when you need it .
Durable Construction: Built with food-grade inner tank material and a powder-coated outer frame designed to withstand local weather conditions .
300L High Pressure Solar Water Heater Technical Specifications
| Component | Specification |
|---|---|
| Tank Capacity | 300 Litres |
| System Type | Pressurized / High Pressure |
| Working Pressure | 0.6 MPa (6 bar / approx. 87 PSI) |
| Test Pressure | 1.2 MPa (12 bar) |
| Inner Tank | High-grade material with 1.2-1.5mm thickness |
| Insulation | 50-55mm High-Density Polyurethane Foam |
| Temperature Drop | ≤3°C overnight (12 hours) |
| Heat Pipe | Copper heat pipe with one-way thermal diode, operates at -35°C |
| Tube Type | Evacuated glass vacuum tubes with heat pipe, 58mm x 1800mm |
| Tube Quantity | 24-30 tubes (typical configuration) |
| Absorption Rate | >92% |
| Connections | G 1/2″ or 3/4″ standard inlet/outlet |
| Full System Weight | Approx. 130kg (dry) / 430kg (when full) |
How It Works
The 300L high pressure system delivers reliable hot water through a proven, efficient process:
Solar Collection: Evacuated glass tubes absorb solar radiation, converting sunlight into heat energy through high-efficiency selective coating .
Heat Transfer: Inside each tube, a sealed copper heat pipe contains a special fluid that vaporizes at low temperatures. The vapor rapidly rises to the condenser tip at the top of the tube .
Water Heating: The hot condenser tip transfers heat to the water inside the pressurized tank through a heat exchanger jacket. Water never enters the tubes themselves .
Pressurized Delivery: Because the tank is sealed and connected to mains pressure, hot water flows forcefully to your taps, showers, and appliances on demand—no header tank or gravity feed required .
Why Choose a 300L High Pressure System?
The 300L capacity sits at the top end of residential solar water heating and is specifically suited for properties with higher-than-average demand:
Large Families: 7-9 members can shower, run kitchen tasks, and use appliances without exhausting hot water .
Multiple Bathrooms: Homes with three or more bathrooms benefit from the substantial reserve during peak morning and evening usage .
Guest Houses & Rentals: Properties with frequent guests, Airbnb rentals, or staff quarters maintain consistent hot water availability for all occupants .
Light Commercial Use: Small restaurants, salons, lodges, and clinics requiring reliable hot water throughout operating hours .
Bathtub Users: If your home has a large soaking tub or jacuzzi, the 300L capacity ensures enough hot water for a comfortable bath while preserving supply for other users .
Local Installation Considerations
For homes and businesses in our service area, proper installation ensures your 300L system delivers maximum performance throughout the year. Key considerations include:
Roof Orientation: Panels should face north (in the Southern Hemisphere) for optimal sun exposure. A deviation of up to 15 degrees is acceptable but may slightly reduce winter performance .
Structural Requirements: A full 300L system weighs approximately 430kg. Your roof structure must be professionally assessed to ensure adequate load-bearing capacity. Ground mounting on a concrete base is also available for properties with unsuitable roofs .
Plumbing Integration: Existing hot water pipework can typically be reused. For larger properties, we may recommend upgrading to 3/4″ piping to handle the increased flow capacity .
Water Quality: Depending on your local water supply, we strongly recommend a sediment filter and scale inhibitor to protect the system and maintain efficiency over its lifespan .
Installation Timeline: A 300L system installation typically requires 4-6 hours. Our team handles all lifting, plumbing, and electrical connections (if electric backup is required) .
Installation Summary
Mounting: Securely fix the frame on a north-facing roof or ground stand. Ensure all feet contact the surface evenly on load-bearing structures .
Tank Placement: Position the tank level on the frame before tube installation. The tank must be perfectly level for proper operation .
Tube Installation: Insert heat pipe tubes gently into tank ports with a twisting motion. Secure bottoms in the frame holder .
Plumbing: Connect to mains cold water supply. Install pressure relief valve and temperature relief valve as mandatory safety components .
Final Check: Fill system before sun exposure to prevent tube damage. Check all connections for leaks .
300L High Pressure Solar Water Heater Maintenance
Clean glass tubes every 6-12 months to maintain peak efficiency .
Annually test pressure relief valve operation (discharge water will be extremely hot—exercise caution) .
Inspect tubes periodically for condensation inside glass (indicates broken vacuum requiring replacement) .
Check system pressure gauge regularly to ensure consistent performance .
For properties with hard water, schedule descaling every 2-3 years to maintain heat transfer efficiency .
300L High Pressure Solar Water Heater Applications
Large residential homes (7-9 persons)
Multi-generational households
Guest houses and B&Bs (4-6 guests)
Staff quarters and domestic workers’ accommodation
Small restaurants and catering kitchens
Salons and small-scale commercial hot water users
Lodges and holiday rentals
Contact Us
Ready to eliminate electricity bills and enjoy powerful solar hot water for your entire property? Contact our team today for expert advice, a free site assessment, or to schedule your installation.
📞 Call / WhatsApp: 0794485343
📧 Email: info@globussolar.com
🌐 Web: www.globussolar.com
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