Complete Solar Water Heater Solutions Start HereSupplies Durable 丨 High-Efficiency Solar Water Heaters, Evacuated Tube Collectors
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Evacuated Tube Solar
utilizes advanced vacuum tube technology
high-efficiency water heating even in colder conditions
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offers excellent thermal performance
sustainable hot water for daily household use.
For moreAir Source Heat Pump
extracts heat from the surrounding air
energy-efficient alternative for large-scale hot water
For moreSplit Pressurized Tank
corrosion-resistant stainless steel construction
integration with various heating systems
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Providing a series of solar water heater solutions.
For homes, hotels, industries, and commercial buildings.
Prioritizing R&D for high-efficiency solar thermal standards.
Driving innovation in solar water heater technology.
Pursue sustainable, eco-friendly development.
Building on advanced solar R&D capabilities.
Now consult with Union Tech：8613564372743
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Union Technology is a leading manufacturer and global supplier of premium solar water heaters. With years of expertise in renewable energy, we are dedicated to engineering durable, high-efficiency systems that meet the rigorous demands of modern homes, hotels, and commercial buildings. Exceed your expectations We are dedicated to delivering top-notch quality products and energy-saving solutions. Our ultimate goal is to offer you the best possible service and e
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Absolutely. Commercial split pressurized solar water heaters scale to 300L+ with multiple collectors, serving hotels, dorms, and apartments. Case studies show 60% energy savings and <3-year payback for large properties....
Controllers such as SR81, SR501, TK-8A automate pump circulation via temperature differential, prevent freezing/overheating, allow timed backup heating, and retain settings during power failure—maximizing comfort and safety....
Flat plate offers sleek aesthetics, high efficiency in warm climates, and mains-pressure integration. Evacuated tube excels in cold/overcast regions due to superior insulation. Choice depends on climate and architectural need....
The magnesium anode rod is a sacrificial component that prevents tank corrosion. It attracts corrosive elements, protecting the steel or copper tank. Screw-type and vacuum-tube-type rods are common for pressurized and non-pressurized systems respec...
No. A flat plate pressurized solar water heater uses incoming mains pressure to deliver hot water, so no booster pump is required. Flow strength matches standard municipal supply....
Quality units with stainless steel tanks (SUS304/SUS316L) last 15+ years. Proper maintenance—such as replacing the magnesium anode rod every 2–3 years—extends lifespan and preserves efficiency....
Yes. Split pressurized solar water heaters use glycol antifreeze mixture to prevent freezing. Modern controllers (e.g., SR81, TK-8A) add low-temperature protection, making systems safe even at -35°C when properly configured....
A typical household can reduce water-heating electricity bills by 60%–70% using a solar water heater. In high-sunshine regions, the system pays for itself in 2–4 years and continues saving for 15+ years....
A pressurized solar water heater connects directly to mains water pressure, delivering strong, stable shower flow like a conventional heater. A non-pressurized solar water heater relies on gravity feed, resulting in lower flow rates but simpler,...
A solar water heater works by capturing sunlight through collectors (flat plate or evacuated tube) and converting it into heat. The heat is transferred to water in an insulated storage tank via natural thermosiphon circulation or a pump-driven system....
