The modular water chiller was invented by Multistack. It started with a radically simple idea: water chillers made up of modules that could be brought into the equipment room one at a time, through standard doorways and down elevators, to form a fully integrated water chiller system. The modular chiller idea launched a revolution and transformed Multistack into a leader in the commercial water-chiller industry.

Multistack perfected the modular chiller and leads the industry with market-driven innovative and environmentally friendly modular solutions. Since its founding in the late 1980s, Multistack has engineered, manufactured, and distributed an impressive array of modular air conditioning firsts: the first on-board strainer, the first modular automatic blow-down device, the first modular chiller for variable flow, the first modular heat pump chiller, the first modular heat-recovery chiller, the first modular air-to-water heat pump, and the first modular chiller to utilize MagLev® compressor technology.

Multistack sets the standard in the industry for superior customer service, fast and on-time shipment, superior product quality, and new product development. Our pioneering leadership in environmental issues is well documented. If you want the best, be sure to specify the original: Multistack.

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  • HVAC Equipment
  • Data Center Solutions

Product Types:

  • Chillers


  • Colorado
  • Utah