Behind the Scenes: Rush City High School’s Geothermal HVAC System Takes Shape

The geothermal HVAC system upgrade at Rush City High School is entering the final stage. In the next few days, technicians will be performing start-up procedures and testing final systems.

Owens Companies’ mechanical contracting team has installed the essential equipment that will make this school HVAC upgrade efficient, reliable, and sustainable for decades. From advanced hydronic pumps to precise high-efficiency boilers, every detail is designed for peak performance and long-term comfort.

Large green hydronic pumps circulate heated water through the closed-loop system at Rush City High School. Flexible braided connectors reduce vibration, while integrated gauges and valves provide precise flow monitoring.

Hot Water Circulation with Hydronic Pumps

New hydronic pumps have been installed to circulate heated water throughout the closed-loop hydronic system. Flexible braided connectors reduce vibration, while integrated gauges and valves allow for precise flow monitoring and adjustments. These pumps are vital to keeping the geothermal HVAC system running smoothly year-round.

Inside the high-efficiency boiler, advanced fan assemblies, control electronics, and wiring harnesses manage ignition, temperature, and safety functions for optimal performance.

Inside the High-Efficiency Boilers

The high-efficiency boilers feature advanced fan assemblies, electronic control boards, and precision sensors that manage ignition, temperature, and safety shut-offs. This technology ensures energy-efficient heating for the entire school while reducing operating costs over time.

A close-up of the gas valve and burner system inside the boiler. These components ensure consistent fuel delivery and efficient combustion for reliable heating.

Gas Valve and Burner Assemblies

The gas valve and burner assemblies are the core of each boiler’s heating function. Designed for consistent fuel delivery and optimized combustion, they ensure reliable performance while supporting the energy-efficient heating and cooling goals of the project.

An Owens technician injects specialized water treatment chemicals into the hydronic system to protect against corrosion, scale buildup, and biological growth.

Water Treatment for Longevity

A key step in any commercial HVAC installation is protecting the system from internal damage. Our technicians are injecting specialized chemical treatments to prevent corrosion, scale buildup, and biological growth in the closed-loop hydronic system — extending equipment life and preserving efficiency.

Hydronic system piping with filtration canister and isolation valves. This setup traps debris, maintains system cleanliness, and allows for easy maintenance and balancing.

Filtration and Isolation for Easy Maintenance

A new HVAC filtration system captures particulates before they can affect performance. Isolation valves have been strategically placed to allow for routine maintenance, system balancing, and component replacement without disrupting school operations.

This Rush City High School HVAC project showcases Owens Companies’ commitment to delivering sustainable, high-performance mechanical solutions. By combining geothermal HVAC system technology, precision installation, and comprehensive water treatment, we’re ensuring a learning environment that’s comfortable, efficient, and built for the future.

See earlier project updates below, or click this link: https://www.owenscompanies.com/blog/categories/commercial-hvac-report

Learn more about our Owens Companies geothermal services: https://www.owenscompanies.com/geothermal