Massmann Geothermal & Mechanical, LLC

Throughout the year, Minnesota temperatures fluctuate with the changing seasons. However, about four to six feet below the Earths surface, Minnesota temperatures remain relatively moderate and consistent all year (about 50 degrees F, in MN). This is because the Earth absorbs 47% of all heat and energy from the sun that reaches the surface. A geothermal system circulates a water-based fluid through a buried loop system to take advantage of these consistent temperatures.

Geothermal Heat Cycle

​During the heating process, fluid in the loop absorbs heat from the earth. It is transferred to the unit located in the home. The geothermal system distributes the warm, comfortable air by either a conventional duct system or radiant heat system.

Geothermal Cooling Cycle â€‹

For cooling, the geothermal system process is simply reversed. The warmer temperatures in your home are removed and transferred to the loop fluid. The heat in the fluid is deposited into the ground and the fluid is cooled.

Environmental Impact of Geothermal

Geothermal is recognized by the U.S. Environmental Protection Agency as the most environmentally safe, cost-effective heating and cooling system on the market.  The installation of one geothermal system is the environmental equivalent to removing two cars from the street.

Our Services

MASSMANN GEOTHERMAL & MECHANICAL serves the Twin Cities, MN area and specializes in residential and light commercial geothermal heating, cooling, and hot water systems.  Our focus is design, project management, installation, test and certification of ground source (geothermal) loop field infrastructure for ground source heat pump HVAC projects.

We have been in business installing geothermal systems since 2001, and have installed more GeoComfort geothermal systems in Minnesota than any other GeoComfort dealer. A few of the services that we provide as an HVAC contractor include:

• Turn Key Geothermal Heating and Cooling System
• Installation of GeoComfort Geothermal Systems
• Forced Air Heating and Cooling Systems
• Radiant Floor Heating Systems
• Heat Recovery Air Exchange Systems
• Complete Sheetmetal/Ductwork Installations
• Geothermal Ground Loop Installations
• Design/Build Commercial Projects
• Service and Repair of all Makes and Models of Heat Pumps

Massmann Geothermal & Mechanical serves the Twin Cities, MN area and will provide you with the highest quality, most efficient, and most comfortable geothermal heating and cooling system in the Twin Cities, and best of all at the most competitive price

A few key factors essential for ensuring a proper working geothermal system: 

• Selecting a qualified contractor
• Equipment selection & sizing 
• Loop field type & sizing 
• Duct sizing
• Radiant systems design & application
• Controls and operation.