About Terra-Therm

Terra Therm is midwest's largest supplier of geothermal heat pump systems, radiant floor heat systems, high-efficiency gas and electric radiant floor water heaters, and all the components that you will need to complete the geothermal system for your building or home.  

We cannot lie, we are “Geo Junkies.”

We live and breathe geothermal heat pump systems. We started this business more than 30 years ago - long before most people had even heard about geothermal heat pump systems. We are proud of our thousands of systems located in homes, farms and businesses throughout the United States. We have a long and successful relationship with our manufacturing partner and the quality, technical support and customer experience we provide every day. It is our mission to help homeowners, business owners, farmers, and their dealers design, finance, and install environmentally sustainable and energy saving equipment for their heating and cooling needs. Because at Terra-Therm, we understand it is about your home, your farm, your business…your peace of mind! Give us a call today and experience the Terra-Therm Difference!

PO Box 428 | 13128 240th Ave.
New Richland, MN 56072 

PHONE (507) 463-3213

Dom Korbel, President

(507) 463-3213

Dean Buendorf, Regional Sales Manager - Central & Eastern Iowa

(507) 463-3213  Ext.107

Arlyn Grube, Regional Sales Manager - Eastern Iowa, South East MN and Illinois

(563) 463-3213 Ext. 116

Wally Heumann, Regional Sales Manager - Wisconsin & Northern IL

(262) 623-4589

Eric Spies, Regional Sales Manager - Western Iowa & Eastern NE

(507) 463-3213

Scott Jones, Regional Sales Manager - Northern MN & Eastern US

(507) 461-6832


Larry Wurtak, Regional Sales Manager - Western US & Canada

(623) 561-6958

Pam Shurson, Customer Service

(507) 463-3213 Ext.115

Reg Cass, Radiant Products Sales Regional Manager

(507) 461-5156