Honeywell and Multistack Boost Sustainable Cooling and Heating in Commercial Buildings

CHARLOTTE, N.C., January 22, 2024 – Honeywell today announced that global commercial chiller company Multistack will utilize Honeywell’s next-generation refrigerant, Solstice^® 454B in its chillers and heat pumps for commercial building applications.

This partnership comes after a decade-long collaboration between the companies on research and development of hydrofluoroolefin (HFO) refrigerants, supporting the industry-wide commitment to eliminating fossil fuels in buildings through the adoption of energy-efficient alternatives.

“Since Solstice^® 454B offers a very close performance match compared to R410A, manufacturers can benefit from an easier and faster re-design process of their existing cooling systems - making it the best choice for customers seeking low-GWP refrigerant alternatives to R410A,” said John Keating, vice president and general manager, Stationary Refrigerants, Honeywell. “By working with leading cooling and heating equipment manufacturers such as Multistack, we enable our customers to meet their sustainability targets, contributing to a more sustainable and eco-conscious approach in the HVAC industry.”

As legislation to phase-out high‐GWP refrigerants escalates, it drives the need for efficient refrigerant alternatives to support the industry’s transition to low-GWP refrigerants. Starting in 2024, the United States Environmental Protection Agency (EPA) issued a final rule that cuts the production of high-GWP hydrofluorocarbon (HFC) refrigerants by 40%, underscoring the urgency for manufacturers to identify alternative solutions to tackle climate change.

“Multistack recognizes the importance of providing HVAC solutions that promote energy efficiency and advance the transition from fossil fuels to electrification, which is why we utilize the most optimum refrigerant choices available,” said Scott DeGier, vice president of sales at Multistack. “Partnering with Honeywell to implement Solstice^® 454B in our applications allows us to remain compliant, provide the same cooling performance our customers expect, and reduce the industry’s environmental footprint.”

For more information on Solstice 454B, its applications, and impact, visit: https://sustainability.honeywell.com/us/en

About Honeywell

Honeywell is an integrated operating company serving a broad range of industries and geographies around the world.  Our business is aligned with three powerful megatrends – automation, the future of aviation and energy transition – underpinned by our Honeywell Accelerator operating system and Honeywell Connected Enterprise integrated software platform. As a trusted partner, we help organizations solve the world’s toughest, most complex challenges, providing actionable solutions and innovations through our Aerospace Technologies, Industrial Automation, Building Automation and Energy and Sustainability Solutions business segments that help make the world smarter, safer and more sustainable.  For more news and information on Honeywell, please visit www.honeywell.com/newsroom.

About Multistack

The Multistack Group is a global manufacturer of chillers and heat pumps whose focus is providing optimized solutions that support environmentally conscious design practice.  Their mission is to design and build reliable, energy-efficient equipment that fully supports the transition from fossil fuels to renewables via electrification.