About Us

Therma-Stor employee in factory.

Our History

Therma-Stor LLC, located in Madison, Wisconsin, was established in 1977 to apply advanced heat transfer technologies to residential and commercial markets. Beginning with heat recovery water heaters, Therma-Stor now also manufactures a line of residential dehumidifiers, which includes the Santa Fe series of free-standing and whole house ventilating dehumidifiers. Therma-Stor also offers Quest industrial dehumidifiers and the Phoenix line of restoration equipment for dehumidification, air scrubbing, water extraction, and evaporative drying.

Our Mission

Therma-Stor is a team dedicated to creating and sustaining a competitive advantage via:


Leadership in technology for high efficiency heat transfer, dehumidification, and restoration products.


Passion for providing the highest value to our customers, employees, and owner.


Commitment to success through honest, hard work.

Our Philosophy

We have a simple philosophy that guides our every decision. We strive to:

  • Excel as the industry leader in high-efficiency dehumidification
  • Deliver quality products and exceptional service to our customers
  • Succeed through honest, hard work

4201 LIEN RD.