The ASP20 Airstack™ modular air-to-water heat pump is designed for two-pipe HVAC systems. Available in a 20-ton module size, the heat pump can be used singly or in a multiple configuration for ...

SPARTA, Wis. - Multistack, a leader in modular chillers, has announced that 2009 represents the 20th anniversary of the Wisconsin-based company. After spending a number of years working at Trane, Bill ...

Financial terms of the deal were not disclosed. Multistack, based in Sparta, Wis., makes chillers, heat pumps and other industrial HVAC systems. The company employs more than 170 at its 245,000-square ...

SPARTA, Wis. — Multistack Inc. water chillers are in about 120 U.S. embassies around the world. And the Sparta company plans to expand its international business over the next five years. Founded in ...