Mammoth Inc.

Mammoth Inc.: Nearly 90 Years of American HVAC Manufacturing

Mammoth Inc. is one of the most established names in American HVAC manufacturing, with roots stretching back to 1935 when the company was founded as the Brown Sheet Iron and Steel Company in St. Louis Park, Minnesota. Over nearly nine decades, Mammoth has evolved into a specialist in custom packaged HVAC systems and water source heat pumps, including geothermal configurations for commercial and institutional applications.

Now a brand of Nortek Air Solutions, LLC — the largest manufacturer and marketer of custom HVAC systems in North America — Mammoth brings unmatched engineering capability and manufacturing expertise to the geothermal market. The company's water source heat pumps, including geothermal models, are widely used in schools, office buildings, hospitals, government facilities, and multi-family residential complexes.

Mammoth Geothermal Product Lines

N-Vintage Water Source Heat Pumps

The N-Vintage line was designed specifically to meet ASHRAE Standard 90.1 efficiency requirements, offering medium-efficiency horizontal and vertical units ranging from 1/2 to 6 tons for commercial water loop and geothermal applications.

Custom Packaged Geothermal Systems

Mammoth's specialty is custom-engineered HVAC solutions. The company can design and manufacture custom packaged geothermal systems tailored to specific building requirements, load profiles, and installation constraints.

Chillers and Chiller Plants

Mammoth offers chillers and complete chiller plants utilizing oil-free, magnetic bearing compressors from Danfoss Turbocor, emphasizing high efficiency, low maintenance, and quiet operation for commercial geothermal loop systems.

Why Choose Mammoth?

• Nearly 90 Years of Manufacturing: One of the oldest HVAC companies in North America
• Nortek Air Solutions: Backed by the largest custom HVAC manufacturer on the continent
• Custom Engineering: Tailored solutions for unique commercial requirements
• ASHRAE Compliant: Products designed to meet or exceed current efficiency standards
• American Manufactured: Built in Minnesota for the North American market

Find a commercial geothermal installer through our contractor directory.

Mammoth Contact Information