Calpacific provides heat transfer solutions in California, offering high-quality thermal mechanical products for steam, hot water, and hydronic systems. From heating coils and tank heaters to heat exchangers and separators, we support reliable system performance across a wide range of applications.
Our Heat Transfer Products
Heat Transfer Coils

Calpacific partners with Armstrong International to provide durable steam, water, and glycol coils for a wide range of heat transfer applications.
Built for performance in demanding environments, Armstrong’s coil systems offer reliable efficiency, corrosion resistance, and long service life—supported by expert engineering and flexible manufacturing.

Tank Heaters

Calpacific offers Armstrong International’s heavy-duty tank heaters, engineered for efficient heat transfer in demanding industrial environments.
Featuring helically wound finned pipes and all-welded, monometallic construction, these heaters provide up to 10 times the heat transfer efficiency of bare pipe units, reducing coking and maintenance needs. Available in various configurations and materials, Armstrong’s tank heaters ensure long-lasting performance and corrosion resistance.


Calpacific offers tank heaters from Armstrong Fluid Technology, built for efficient water heating in both agitated and non-agitated storage tanks. These internal tube bundle heaters are available in single- or double-wall designs and are ASME-compliant for pressure vessel applications. Engineered for durability with copper tubes and cast iron heads, Armstrong tank heaters deliver consistent performance across a wide range of temperatures and flow rates.

Shell & Tube Heat Exchangers

Calpacific partners with Enerquip to provide high-quality shell and tube heat exchangers, custom-built for both sanitary and industrial applications. With a reputation for precision and fast lead times, Enerquip offers ASME- and TEMA-compliant exchangers in a wide range of sizes, materials, and configurations to meet specialized heating and cooling needs.

Plate Heat Exchangers

Polaris plate heat exchangers are built for long-term performance with a focus on efficiency, flexibility, and durability. With multiple plate sizes and patterns available, Polaris units are custom-configured for HVAC, food processing, chemical, and refining applications. Precision construction ensures low maintenance and reliable, cost-effective operation over the life of the system.

Air & Dirt Separators

Calpacific offers air and dirt separation solutions from Thrush, designed to protect and improve the efficiency of closed-loop hydronic systems. Air and debris can lead to corrosion, reduced heat transfer, and equipment failure—Thrush products like the Aar-O-Vent®, tangential separators, and automatic air vents are engineered to solve these issues and extend system life.

Tube Bundle Replacements

Calpacific provides replacement tube bundles from Thrush, designed to restore heat exchanger performance with minimal disruption. Built to order for compatibility and fast turnaround, these bundles offer a cost-effective way to extend the life of your system and avoid full unit replacement.

Contact a Dedicated Calpacific Representative
Calpacific has developed an extensive product offering through partnerships with industry leading manufacturers. Count on us to meet your needs while improving your facility’s operation and efficiency.