Commercial Solar Geyser
Advantages
High-efficiency blue film – absorptance ≥95%, thermal performance up to 75.5%.
Enamel inner tank – no scaling, no corrosion, 15+ year lifespan.
Extremely low operating cost – free solar energy on sunny days, saves over 60% on energy costs annually.
Smart dual heat source – automatic backup heating on cloudy/rainy days, 24/7 constant hot water.
Flexible commercial customization – 100L–300L and larger capacities, 2–3 year payback.
Commercial Solar Geyser
The Commercial Solar Geyser (commercial solar water heater) is an efficient hot water solution specially designed for large-scale centralized water usage scenarios such as hotels, schools, hospitals, factory dormitories, and commercial complexes. The system features blue high-selectivity film-covered flat plate solar collectors combined with enamel inner tanks for pressurized water storage, using free solar energy as the main heat source to provide stable, clean, and cost-effective hot water supply. The standard capacity ranges from 100L to 300L, and larger capacities can be customized according to project requirements.
I. Technical Specifications
Product Model: 300L High-Pressure Commercial Solar Geyser.
Collector | BTE2.0-2 | BTE2.5-2 |
Overall area (m2) | 2.0 | 2.5 |
Aperture area | 1.87 | 2.34 |
L x W x H (mm) | 2000x1000x80 | 2000x1250x80 |
Optical performance | 78% | |
Absorber sheet | Al, highly selective coating | |
Frame | Aluminium | |
Enamel direct solar water heater
Model | BTE-ET-150 | BTE-ET-200 | BTE-ET-300 |
Collector | STK2.0-2(x1) | STK2.5-2(x1) | STK2.0-2(x2) |
Tank(L) | 150 | 200 | 300 |
Dimensions | Φ520*1300 | Φ580*1310 | Φ580*1830 |
Insulation | PU foam 50 mm | ||
Working pressure | 7 bar | ||
Inner tank material | 2.0mm | 2.5mm enamelled | |
Outer tank material | Powder-coated steel | ||
Auxiliary heating | 1.5 KW | 2.0 KW | 2.0 KW |
Corrosion protection | Magnesium anode | ||
Mounting material | 0°/ 25°/ 45° Galvanized sheet | ||
Enamel indirect solar water heater
Model | BTE-ET-150 | BTE-ET-200 | BTE-ET-300 |
Collector | BTE2.0-2(x1) | BTE2.5-2(x1) | BTE2.0-2(x2) |
Tank(L) | 150 | 200 | 300 |
Dimensions | Φ520*1300 | Φ580*1310 | Φ580*1830 |
Insulation | PU foam 50 mm | ||
Jacket Layer working pressure | 2 bar | ||
Working pressure | 7 bar | ||
Heat transfer medium | Glycol / water mixture | ||
Inner tank material | 2.0mm | 2.5mm enamelled | |
Outer tank material | Powder-coated steel | ||
Auxiliary heating | 1.5 KW | 2.0 KW | 2.0 KW |
Corrosion protection | Magnesium anode | ||
Mounting material | 0°/ 25°/ 45° Galvanized sheet | ||
Stainless steel direct solar water heater
Model | BTE-ET-150 | BTE-ET-200 | BTE-ET-300 |
Collector | BTE2.0-2(x1) | BTE2.5-2(x1) | BTE2.0-2(x2) |
Tank(L) | 150 | 200 | 300 |
Dimensions | Φ520*1200 | Φ580*1225 | Φ580*1775 |
Insulation | PU foam 50 mm | ||
Working pressure | 7 bar | ||
Inner tank material | SUS 304 / SUS 316L | ||
Outer tank material | Powder-coated steel | ||
Auxiliary heating | 1.5 KW | 2.0 KW | 2.0 KW |
Corrosion protection | Magnesium anode | ||
Mounting material | 0°/ 25°/ 45° Galvanized sheet | ||
III. Technical Principle
III. Product Advantages
1. Blue high-selectivity film layer, excellent heat collection efficiency
The flat plate collectors use a blue high-selectivity absorption film layer (blue film), fabricated through vacuum magnetic control sputtering (PVD) technology. The absorption rate is ≥95%, and the emission rate is ≤5%. They efficiently absorb solar radiation energy within the main energy range of the sun, while minimizing heat loss through radiation. The thermal performance of the blue film collectors can reach 75.5%, significantly superior to traditional coatings, and they maintain 95% initial performance even after 25 years.
2. Enamel Inner Tank Water Tank, Clean Water Quality, Long Lifespan
The water tank uses high-quality enamel inner tanks, which are treated at high temperatures and can withstand extreme temperature differences ranging from -60°C to +450°C. The enamel inner tanks are acid-resistant, alkali-resistant, non-corrosive, non-polluting, and effectively ensure clean water quality. They have a lifespan of over 15 years, which is twice that of ordinary water tanks, especially suitable for commercial high-frequency water usage scenarios.
3. Intelligent Dual Heat Sources, Constant Temperature Hot Water 24/7
The system supports the "solar priority + auxiliary heat source supplementary heating" mode. On sunny days, free solar energy is utilized; on cloudy days or in winter, it automatically switches to electric or gas auxiliary heating to ensure 24-hour constant temperature hot water, meeting the continuous water supply needs of commercial use.
4. Commercial Modular Design, Flexible Capacity Customization
The collectors can be connected or combined in series or parallel, and the water tank capacity supports standard specifications of 100L to 300L, and can be customized to larger capacities according to project requirements. Whether it's a small commercial establishment or a large centralized heating project, the most suitable solution can be matched.
5. Extremely Low Operating Costs, Quick Investment Recovery
On sunny days, there is almost no operating cost. The annual energy savings are over 60%. Actual cases show that solar users have annual gas expenses of only about 600 yuan, which is nearly 2000 yuan less than the gas water heater per year. Generally, the initial installation cost can be recovered within 2-3 years.
IV. Factory Advantages
✅ Blue Film Autonomous Production: We have a fully automated roll-to-roll vacuum magnetic control sputtering production line, independently developing and producing blue high-selectivity film layers with an absorption rate of ≥95% and an emission rate of ≤5%. The quality is fully controllable.
✅ Enamel Inner Tank Autonomous Manufacturing: We have a complete production line for enamel pressure water tanks, with thick steel plates and high-temperature enameling process, which are fired at 800-900°C, ensuring stability and reliability.
✅ International Certification: The product has passed Solar Keymark, CE, ISO 9001, etc. international certifications, and its quality is recognized by the global market.
✅ OEM/ODM Customization: The water tank capacity, collector size, and appearance color can be customized as per customer requirements, and support for customer brands/logos.
✅ One-stop Service: From design, production to export customs declaration, clearance, and shipping, the delivery cycle is 15-25 working days.
V. Application Cases
✅ Case One: Hotel Centralized Hot Water
A resort hotel uses blue film flat plate collectors array + enamel pressure water tank, with high solar energy guarantee rate, significantly reducing energy expenses, and operating emissions close to zero. The system is stable, with low maintenance costs.
✅ Case Two: School Dormitory Hot Water
A boarding school uses flat solar + enamel water tank centralized hot water system to meet the盥洗 needs of thousands of students and teachers. The annual operating cost is reduced by over 70% compared to the original gas boiler scheme.
✅ Case 3: Factory Staff Dormitories
A manufacturing enterprise adopted a commercial solar hot water system, with a modular collector array combined with a large-capacity enamel water tank, to provide stable hot water for the staff's daily use. The investment payback period was only 2-3 years.
VI. Common FAQs
Q1: Is the operating cost of commercial solar water heaters really lower than that of gas?
Yes. On sunny days, solar energy is freely utilized, saving over 60% of energy costs annually. Actual case studies show that solar energy users' annual gas expenses are only around 600 yuan, which is nearly 2,000 yuan less than that of gas water heaters per year.
Q2: Is hot water sufficient on cloudy days or in winter?
The system supports intelligent dual heat sources, automatically switching between electric auxiliary or gas auxiliary, ensuring constant temperature hot water throughout the day.
Q3: Which is better, enamel inner tank or stainless steel inner tank?
Enamel inner tanks do not form scale, corrode, or pollute, have clean water quality, and have a lifespan of over 15 years, especially suitable for commercial high-frequency water usage scenarios.
Q4: What are the installation requirements?
It needs a south-facing roof or balcony. For commercial projects, they can be modularly connected. The specific plan is customized by engineers based on water usage and the site.
Q5: How long does the investment pay off?
Generally, it takes 2-3 years to recover the initial installation cost through saved energy expenses. Long-term use saves more and more.
📩 Contact us immediately to obtain the exclusive commercial solar water heating system solution!
Whether you are a hotel engineer, school logistics, hospital procurement, or factory facility manager, we provide you with professional Commercial Solar Geyser consultation and customized solutions - blue high-selective film-covered flat plate collectors + enamel inner tank pressure water tank, 100L-300L standard and larger capacity customization.
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