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Multistack is proud to announce the development of a “Next Generation” Negative Pressure, Oil-free Centrifugal Compressors for the HVAC&R Industry. Multistack has partnered with the company’s original founder, Mr. Ron Conry, to develop what promises to be a major step forward in the industry to help decarbonize the planet.


Multistack’s modular chiller business was founded in 1985 and was built on several of Ron’s prior inventions including the modular chiller, digital electronics, and brazed plate heat exchanger technologies. Other inventions of his that have gone on to become multi-national businesses is the oil-free chiller manufactured by Smardt and the Turbocor oil-free compressor now manufactured by Danfoss.


This new range of products are also based on one of Ron’s latest patents and is a revolutionary concept in centrifugal compressor design. Multistack will use this technology to help rebuild it brand in the market, by directly tackling the inefficiencies faced within the industry. Air Conditioning of one of the largest consumers of electricity on the planet, and therefore one of the major contributors to global warming, and this new design of products will help reduce the carbon footprint while addressing the phasing out of fossil fuels.



About Us


Multistack, the original inventor of modular chillers, is known globally for its innovative approach in finding solutions for customers’ chiller and heat pump needs.  Multistack have an extremely wide range of chillers in both water and air cooled configurations, from modular scroll chillers starting at 70kwR, to heat pumps, through to very large oil-free centrifugal chillers of more than 4000kwR, using a variety of environmentally friendly refrigerants such as R407C, R410A, R134a, R513a, and R1234ze.


Multistack Australia, founded in Melbourne in 1985, is a wholly owned subsidiary of Multistack International, which is listed on the Australian Stock Exchange.  Multistack now has thousands of chiller installations around the world, and with ISO 9002 and TUV CERT quality accreditation, so customers can be assured of receiving a high quality, reliable chiller, whenever they install a Multistack chiller.


In 2020, Multistack brought its expertise in modularity, and thermodynamics into the field of renewable energy, by expanding beyond just providing chillers and heat pumps, to also producing energy using waste heat sources with their range of Verdicorp Organic Rankine Cycle engines, and their Oil-Free Turbo Expander by Verdicorp.


Multistack can provide all your chiller and waste heat to energy needs and has qualified trained partners around the country to provide local support to all their installations.  Multistack also carries a wide variety of spare parts in Melbourne for all their chillers, as well as a good stock of parts for Turbocor compressors.


Please contact Multistack to see what solution they can provide for you.