Build Your Large-Volume Solar Water Heating System
Our pressure circulating solar water heaters are designed to connect together in parallel to form a large-volume solar water heating system, meeting the high-demand hot water scenarios, including hospitals, hotels, and campuses, etc. Every single unit is utilizing Haoha’s premium inner water tanks to ensure the water heating system works smoothly without issues happening in a single spot. Let your thermal solutions be high-efficiency and eco-friendly.

Your Reliable Pressure Circulating Solar Water Heater Solutions
As a leading manufacturer of solar water heaters, we offer pressure-circulating solar water heater OEM/ODM solutions for all kinds of scenarios. With 12 manufacturing sites, over 100 R&D experts, and multiple robotic welding lines, we can ensure consistent quality and excellent performance for you.
Connect Solar Water Heater with Other Energy Types
Our pressure circulating solar water heater can connect with gas, electric, heat pump and solar water heaters together to ensure higher-efficiency and lower-consumption.
Connect pressure circulating solar water heater with electric water heater in parallel to save the electricity consumption.
Connect the gas and pressure circulating solar water heater to ensure eco-friendly and high-efficiency.
Connect solar, heat pump & electric water heater together to have a flexible thermal solution in your project.
Connect heat pump and solar water heater in parallel to keep the water warm with high-efficiency and eco-friendly.

Connect solar, heat pump and gas water heater in parallel. High-efficiency and reliable hot water service.
Connect multiple solar water heater to get a zero-emission thermal solution in your project.
Designed for Parallel Connection
Based on the stable service on every single unit in the pressure circulating solar water heater parallel connection, the entire system is extensible and can be scaled to support larger-scale hot water projects exceeding 100 tons. What’s more, the entire system is completely leakage-free, ensuring reliable operation even if a tube breaks. We design the system for easy installation and maintenance.


Customizable Solution & Excellent Performance
One size rarely fits all; evacuated tubes and metal heat pipes are optional for you. Besides, you can choose from metal pipe sizes, including Ø58, Ø65, Ø70, or Ø102, or choose our double vacuum glass tubes designed for heat transfer via a specialized medium. With high absorption coefficient and low heat loss, both of them offer highly efficient and eco-friendly service for the regions worldwide, even in tough conditions. With Haoha, you can trust us to deliver a worry-free pressure-circulating solar water solution that meets your market needs.
Engineered for You: Superior Design & Manufacturing


Haoha professional technical teams serve you, starting from your idea to manufacturing. With abundant experience in water heating systems, we specialize in designing and manufacturing pressure circulating solar water heaters to meet your requirements.
You offer your ideas or requirements, then we start to design and manufacture the pressure circulating solar water heaters for your project. And after-sales support is always available for your project.
Pressure Circulating Solar Water Heater Application Scenarios
Haoha’s pressure circulating solar water heater always provides a reliable water heating service for your projects.

Comfortable experience for living water usage. Compatible with the exiting water heating system, supporting residential scenarios to save energy-cost on water heating.

Ideal for hotels, dorms, and gyms etc. Connect multiple units in parallel to handle peak loads. Connect with you gas, electric, heat pump water heater to save commercial energy cost.

Processing plants and manufacturing massive scalable arrays for industrial process heat, supporting factories save energy cost with reliable water heating service.
For our pressure circulating solar water heater, it can be connected with gas, electric, and heat pump water heater together, ensuring your projects offer the water heating service flexibly and reliably.
There is no strict limit. You can connect as many units as needed. It depends on your hot water demands, available space and water pressure. Our system is always designed for easy expansion.
No, our pressure-bearing design ensures stable water pressure even when multiple units are connected in parallel, that is compatible with high-pressure municipal water supply.
Yes. Our pressure circulating solar water heaters are designed to be easily integrated with other heating systems.
Yes. Our closed-loop heat pipe design prevents water from entering the collector tubes, avoiding shortening system life even in hard water regions.










