
As a global pioneer with over 20 years of expertise in HVAC control technology, Saswell serves as an "Innovation Accelerator" for boiler manufacturers, global distributors, and system integrators. We provide scalable, future-proof control ecosystems and serve as a trusted supply chain partner tailored to your brand’s specific requirements.
The Universal Control Hub for Multi-Zone Heating
Optimize your HVAC infrastructure with our robust Waterline Controllers. Engineered for precision and reliability, our controllers serve as the central command for pumps, boilers, and heat pumps. From 5-zone compact units to 8-zone professional centers, we provide the intelligent energy-efficient zone management needed for modern residential and commercial climate control.
