PHE Package
Recirculator Package


Isotherm, Inc. is a custom manufacturer of specialized heat exchangers, pressure vessels, and packaged systems for various industries such as refrigeration, oil & gas, process and renewable energy. Founded in 1999 and based in Arlington, Texas, Isotherm, Inc. has been a reliable supplier to domestic and international clients and continues to be the premium manufacturer whose main goal is to establish long term partnerships with its customers. The company has about 50 employees and is run by professionals with doctoral degrees in engineering, with emphasis on enhanced heat transfer!

We offer various heat exchangers such as shell & tube, plate & frame (gasketed, semi-welded, brazed), shell & plate, pressure vessels, vessel packages, refrigeration skid packages, ORC packages, CNG packages, waste gas process and compression skids and customized special application packaged units based around our heat exchange products. While we offer these custom manufactured products, we also provide service work, such as (not limited to), re-tubing or other repair work for the related products, whether if they were built by us or other manufacturers. Please see our Products & Services section to see specifically what we offer!

Our products are constructed with various types of materials; most common are carbon steel, stainless steel 304 & 316, titanium, copper & copper alloys. We also have experience in utilizing duplex steel, Alloy 20, and various exotic materials. 

Throughout its existence Isotherm Inc. has been developing new types of heat exchangers and is committed to working closely with our customers to deliver step by step improvement, such as our least refrigerant charge evaporator!

Our Mission

To provide our customers quality, cost effective and reliable solutions

Our Vision

To be a world class fabrication company

Core Values

We follow the ISOTHERM way, which stands for:

 I-Integrity S-Support O-Optimism T-Teamwork  H-Humility E-Empathy R-Responsibility M-Motivation