ASP  Duluth's Premier Geothermal Designer & Installer ASP  Duluth's Geothermal Designer & Installer ASP designs and installs geothermal heating and cooling systems in the Duluth, Superior, and Arrowhead region. ASP offers the regions most affordable heating and cooling geothermal solutions with superior customer service and quality.   Design Services: ASP will size and design your geothermal system to meet your heating and cooling needs. Whether its heating your home, pool, business, warehouse or workshop- ASP can Design the right system. Call ASP to get started.   Installation Services: ASP will install your geothermal system based on your design. Call ASP to get started.   JUST RELEASED!!! The $2,000 cap on the geothermal tax credit has been removed!  This allows the consumer to realize a 30% tax credit on the full installation cost of a geothermal system. There is still a local utility company rebate in addition to this tax credit available in most areas.     FACT: Geothermal Systems are up to 500% Efficient.