For more than a century, Harris Thermal has supported diverse industries with custom-engineered process equipment designed for safety, reliability, and long-term performance.
From energy and natural resources to manufacturing and industrial production, our expertise in ASME-code fabrication, thermal design, and advanced metallurgy ensures every project meets the highest standards — whether we're building a single vessel or delivering integrated systems.
Custom-engineered equipment built to withstand extreme pressures, temperatures, and corrosive conditions — from upstream separation systems to downstream refinery exchangers and tanks, compliant with ASME, API, and TEMA.
Explore Oil & Gas
Rugged equipment built for the demanding environments of pulp and paper mills — digesters, evaporators, tanks, and heat exchangers trusted to keep mills running efficiently and reliably.
Explore Pulp & Paper
Vessels, exchangers, and process equipment that keep power plants running safely — from fossil fuels to nuclear and renewables, built for reliability under the most demanding conditions.
Explore Power Generation
Vessels, exchangers, and evaporators supporting everything from municipal purification to advanced zero liquid discharge systems — safeguarding communities and sustainable water management worldwide.
Explore Water Treatment / Desalination
Process equipment that helps food producers maximize efficiency and reduce downtime — from fry oil heaters and evaporators to ASME-certified vessels trusted by leading processors.
Explore Food Processing
Heavy-duty vessels, exchangers, and autoclaves engineered for the extremes of mineral processing — from slurry handling to high-pressure refining, delivering durability and long service life.
Explore Mining & Minerals
Converters, reactors, exchangers, and ASME-certified vessels supporting high-volume formaldehyde and resin production — engineered for durability, efficiency, and compliance.
Explore Formaldehyde & Resins
Custom reactors, columns, exchangers, and ASME-certified vessels for large-scale and specialty chemical production — with proven expertise in metallurgy and compliance.
Explore Chemical
ASME-certified vessels, exchangers, and skid systems designed for the extreme demands of LNG processing — from gas treatment to cryogenic storage, for producers and EPCs worldwide.
Explore Liquefied Natural Gas
NQA-1 quality program fabrication for DOE contractors, utilities, SMR developers, and nuclear EPCs — heat exchangers, ASME vessels, and custom thermal equipment with full material traceability and documentation.
Explore Nuclear
From one-off specialty equipment to production components, we bring the same ASME-code discipline, thermal design expertise, and advanced metallurgy to every manufacturing challenge.
Explore General ManufacturingIf your process needs heat transfer, pressure containment, or custom fabrication, we can build it. Tell us what you're working on.