Pressurized Solar Geyser
Advantages:
High-efficiency blue film – absorptance ≥95%, ideal for strong African sunlight.
Enamel inner tank – resists hard water, scaling, and corrosion for 15+ years.
Pressurized multi-point supply – constant hot water to multiple outlets.
Smart dual heat source – solar priority with electric backup for 24/7 hot water.
Low operating cost – saves over 60% on energy, payback in 2–3 years.
Enamel Inner Tank · Blue Film Flat Plate Solar Water Heater
The Pressurized Solar Geyser is an efficient hot water solution specifically designed for the African market. The system features blue high-selectivity film-covered flat plate solar collectors combined with an enamel inner tank for pressurized water storage. It uses free solar energy as the main heat source to provide stable, clean, and cost-effective hot water for African households and commercial settings. 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 | ||
II. Technical Principle
III. Product Advantages
1. Blue high-selectivity film layer, efficient heat collection under strong sunlight
The flat plate collector uses 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%. Under strong African sunlight, the heat collection efficiency is outstanding, with a thermal performance of 75.5%, significantly better than traditional coatings. It maintains 95% initial performance after 25 years.
2. Enamel Inner Tank with Pressurized Water Tank, suitable for African water quality
The water tank uses high-quality enamel inner tank, treated at high temperatures, capable of withstanding extreme temperature differences of -60°C to +450°C. The enamel inner tank is acid-resistant, alkali-resistant, non-corrosive, non-polluting, especially suitable for water usage environments in some African regions with high water hardness and high chloride ion content, effectively ensuring clean water quality and a lifespan of over 15 years.
3. Pressurized Operation, Multi-point Simultaneous Water Supply
The water tank is designed for pressurization, allowing direct connection to municipal water pressure without the need for a booster pump to achieve simultaneous constant-temperature water supply at multiple points, meeting the water usage needs of African households and commercial sites, providing a more comfortable bathing experience.
4. Intelligent Dual Heat Source, 24/7 Hot Water
The system supports the "solar priority + electric auxiliary heating" mode. On sunny days, it freely utilizes solar energy; on cloudy days, it automatically switches to electric auxiliary heating to ensure 24-hour constant-temperature hot water, adapting to the unstable power grid conditions in some African regions.
5. Extremely Low Operating Costs, Quick Investment Recovery
On sunny days, there is almost no operating cost, saving approximately 60% of electricity annually. Based on African sunlight conditions, it typically takes 2-3 years to recover the initial installation cost, and long-term use results in greater savings.
II. Factory Advantages
🔹 Blue Film Autonomous Production: Fully automatic roll-to-roll vacuum magnetic control sputtering production line, with an absorption rate of ≥ 95% and an emission rate of ≤ 5%, ensuring quality control
🔹 Enamel Inner Tank Autonomous Manufacturing: Thick steel plates + high-temperature enameling process, fired at 800-900°C, suitable for hard water environments in Africa
🔹 International Authority Certification: Certified by Solar Keymark, CE, ISO 9001, etc., ensuring global market recognition of quality
🔹 OEM/ODM Customization: Water tank capacity from 100L to 300L and larger specifications, collector size, and appearance color can be customized as per customer requirements
🔹 One-stop Service: From design, production to export customs declaration and maritime transportation, the delivery cycle is 15-25 working days
III. Application Cases
Case 1: Hot Water Project for Hotel in Nigeria
A business hotel adopted a system of blue membrane flat plate collectors and enamel pressure vessels to provide 24-hour constant temperature hot water for guest rooms. The system produced an average of 30 tons of hot water per day, saving approximately 40% of electricity costs annually, and the investment payback period was only 2.5 years.
Case 2: Residential Community in Kenya
A residential community adopted individual-installed pressure-type solar water heaters, meeting the daily hot water needs of 200 households. The enamel inner tank can withstand the local hard water quality and has no scaling or corrosion after three years of operation. User feedback was positive.
Case 3: School Dormitory in South Africa
A boarding school adopted a commercial solar hot water system, with modular collector arrays and large-capacity enamel water tanks, meeting the washing needs of 800 teachers and students. The annual operating cost was reduced by more than 65% compared to the original electric heating solution.
IV. Common FAQs
Q1: Africa has strong sunlight. Will the blue-coated collectors overheat?
No. The blue coating has excellent heat resistance, and the system is equipped with intelligent temperature control and heat dissipation protection to ensure stable operation even in high-temperature environments.
Q2: Can the enamel inner tank adapt to the water quality in Africa?
OK. Stainless steel inner tank does not accumulate scale or corrode, and is particularly suitable for areas with high water hardness and high chloride ion content. It has a lifespan of over 15 years.
Q3: Is there enough hot water during rainy days or power outages?
The system supports intelligent dual heat sources and automatically switches to electric auxiliary heating. It is equipped with a large-capacity insulated water tank, which can maintain hot water supply for 24-48 hours during rainy days.
Q4: What are the installation requirements?
It needs a south-facing/north-facing roof or balcony (depending on the northern or southern hemisphere). Commercial projects can be modularly connected. The specific plan is customized by engineers based on water consumption and site conditions.
Q5: Is OEM customization supported?
Yes. The tank capacity (100L-300L and larger), collector size, and appearance color can all be customized as per customer's requirements. It supports customer brands/logos.
Q6: How long is the investment payback period?
Generally, the initial installation cost can be recovered through electricity savings within 2-3 years. The actual payback period may be shorter due to the excellent solar conditions in Africa.
📩 Contact us immediately to obtain the exclusive solution for the African market!
Whether you are an African hotel engineer, real estate developer, school logistics department, or an investor in new energy projects, we provide professional Pressurized Solar Geyser consultation and customized solutions - blue high-selectivity membrane plate collector + stainless steel inner tank pressure water tank, with standard capacities of 100L-300L and larger customizations.
📧 Send an inquiry to obtain the exclusive solution!









