Harty Mechanical

Commercial - Geothermal

Harty Mechanical, Inc. teams up with Water Furnace International, Inc. to bring these energy efficient systems
into the businesses of our area. There are many benefits to using geothermal technology to lower your energy
costs. We have significant experience and can help you design your system using the latest technology.

Ground Loop systems

An earth loop is the heart of a geothermal system. It's what actually transfers heat to and from the ground. And
it's the single biggest advantage a geothermal system has over ordinary heating and cooling systems. There are
three different types of Ground Loop Systems that can be used for business applications.

Horizontal Loops - These are often considered when adaquate land surface is available. Pipes are placed
in trenches that range in length from 100 to 400 feet.

Vertical Loops -These are the ideal choice when available land surface is limited. Drilling equipment is used
to bore small-diameter holes from 75 to 300 feet deep.

Pond (Lake) Loops -These are very economical to install when a body of water is available, because
excavation costs are virtually eliminated. Coils of pipe are simply placed on the bottom of the pond or lake.

Completed Commercial Geothermal Projects
Harty Mechanical, Inc. has designed and installed geothermal systems for several businesses
in southern Minnesota. Below are descriptions, and images of a few.

Agricover

Grand Meadow School

Home Federal

Rebates and Incentives
Rochester Public Utilities and Austin Utilitites are offering rebates and incentives to customers using geothermal
technology to other energy efficient products.

For more information visit Rochester Public Utilities and Austin Utilities.

If you would like more information on using geothermal technology, contact Pat, Patrick, or Shavonn at
Harty Mechanical, Inc. or visit our links page.

Harty Mechanical, Inc.
1600 1 St Avenue NE
PO Box 277
Austin, MN 55912
Phone 507.437.8201
Fax 507.437.8378