Description
Key Takeaways
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The Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater is ideal for homes, hotels, and institutions with high hot water needs.
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Uses heat-pipe vacuum tube technology for faster heating and better performance in cold or cloudy weather.
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Pressurized system provides steady water flow for showers and taps.
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Built with stainless steel for durability and long life.
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Saves up to 70% on water heating costs compared to electric systems.
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Simple to install on rooftops or open areas with sunlight exposure.
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Works year-round in different climates.
Why Hot Water is Important
Hot water is part of daily life for cooking, bathing, and cleaning. Most people still rely on electric heaters or gas boilers, but these cost a lot to run and harm the environment. A solar water heater uses the sun’s free energy to heat water, which is cleaner and cheaper in the long term.
What Makes the Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater Special
The Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater is a high-capacity system designed for people who use a lot of hot water every day. It can store up to 250 liters, enough for a large family or a small hotel. Its pressurized design ensures water flows at normal pressure through taps and showers, so you don’t have to compromise on comfort.
Main Features
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Capacity: 250 liters
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Technology: Heat-pipe vacuum tubes
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Inner and outer tank made of stainless steel
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Works under pressure for consistent flow
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Insulated with thick polyurethane foam
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Operates in temperatures from -20°C to 90°C
Understanding Heat-Pipe Technology
Heat-pipe technology uses vacuum tubes with copper pipes inside. Sunlight heats a small amount of fluid in these pipes. The fluid turns into vapor, rises to the top, and transfers heat to the water in the tank. After cooling, the fluid goes back down to repeat the process.
Advantages of Heat-Pipe Systems
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Quick water heating compared to flat-plate collectors
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Works well in cold or cloudy conditions
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Long life due to corrosion-resistant materials
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Low risk of freezing since water does not pass directly through the tubes
Types of Solar Water Heaters
Not all solar water heaters are the same. The main types are:
Flat Plate Collectors
These use flat metal plates to absorb sunlight. They work best in warm climates with lots of sun.
Evacuated Tube Collectors
These have glass tubes with a vacuum that keeps heat from escaping. They perform better in cold and windy areas.
Heat-Pipe Tube Systems
The type used in the Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater, combining evacuated tubes with heat pipes for top performance in many climates.
Other Brands Worth Considering
While this system is excellent, there are other respected solar water heater brands:
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Rheem – Known for strong performance and durability
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Bosch – Offers efficient solar water heating options
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Apricus – Specializes in heat-pipe systems
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Sunrain – Good performance at affordable prices
Price Range in the Market
The price of pressurized heat-pipe solar water heaters depends on capacity, brand, and build quality.
| Capacity | Average Price (USD) | Average Price (KES) |
|---|---|---|
| 150 L | $550 – $750 | KES 72,000 – 98,000 |
| 200 L | $650 – $850 | KES 85,000 – 115,000 |
| 250 L | $850 – $1,050 | KES 112,000 – 138,000 |
The Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater usually costs between $900 and $1,000 (KES 118,000 – 130,000), depending on supplier and installation.
Performance and Efficiency
Performance is measured by how fast water is heated and how well heat is kept overnight. This system typically offers:
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Thermal efficiency: 65–75%
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Heating time: 250 liters from 20°C to 60°C in 4–6 hours of sunlight
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Heat retention: Less than 5°C heat loss overnight in mild climates
With regular sunlight, it can serve 6–8 people daily.
Datasheet for Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater
| Specification | Value |
|---|---|
| Capacity | 250 Liters |
| Tube Type | Evacuated Heat-Pipe |
| Tube Diameter | 58 mm |
| Tube Length | 1.8 m |
| Number of Tubes | 25 |
| Inner Tank Material | SUS 304 Stainless Steel |
| Outer Tank Material | SUS 304 Stainless Steel |
| Insulation | 50 mm Polyurethane Foam |
| Max Pressure | 6 bar |
| Temperature Range | -20°C to 90°C |
| Support Frame | Galvanized Steel |
| Lifespan | 15–20 Years |
| Warranty | 5 Years |
Installation Tips
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Place where sunlight is available for at least 6 hours daily
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Use the correct tilt angle based on your location
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Have a trained technician install and test it
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Consider a backup electric heater for cloudy days
Maintenance Guidelines
The Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater needs little maintenance, but you should:
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Clean tubes every 3–4 months
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Check safety valves yearly
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Inspect insulation for cracks or damage
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Flush the tank every 2 years to remove scale buildup
Benefits for Homeowners and Businesses
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Lower bills by reducing electricity or gas use
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Eco-friendly with no emissions during operation
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Year-round reliability with minimal upkeep
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Pays for itself in 3–5 years of savings
Ideal Applications
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Homes with large families
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Hotels and lodges needing constant hot water
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Schools, hospitals, and gyms with heavy hot water use
Climate Performance
This model is designed for use in many climates. In hot, sunny areas, it can heat water to 80°C easily. In cold regions, it still works well because the heat pipes keep working even in low sunlight, and the tank is insulated to keep water warm overnight.
Final Thoughts
The Seven SS Stars 250 Liters Pressurized Heat-Pipe tube Solar Water Heater is a reliable, durable, and efficient choice for anyone needing a large supply of hot water. It combines modern heat-pipe technology with a pressurized system to deliver comfort and savings in the long run. For families, hotels, and institutions, it offers a dependable source of hot water while helping the environment.
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