Get the Lowdown on Low GWP

Follow the Leader: Heatcraft Refrigeration Products Your Complete Online Resource for All Things GWP

Heatcraft is your complete partner for making Low GWP a part of your business. We're here to help you navigate the landscape of current and future regulations, across your business, at every level.

GWP (Global Warming Potential) is the EPA's measure of how much energy the emissions of 1 ton of gas will absorb over a given period, relative to 1 ton of carbon dioxide (CO2)

GWP is the new metric on which our industry is being evaluated. Basically, the lower the GWP, the less the refrigerant warms up the earth.

Passed in December 2020, The American Innovation in Manufacturing Act (AIM) authorizes the EPA to phase-down hydrofluorocarbon (HFC) production, restrict its uses, based on sector, and define refrigerant management standards.

Current regulations limit GWP thresholds to lower than 300, and in some cases, 150. Starting as early as Jan. 1, 2022, these new regulations are likely to continue through 2026 and beyond.

The key regulations likely to impact your business:

At Heatcraft, we're involved in key committees and working groups to help the industry develop standards for your operating location and your applications.

The low GWP landscape is rapidly evolving. For the latest information or questions, please contact Heatcraft at

All roads lead to low GWP

Ozone Depletion Potential (ODP) is out, GWP is in. It's the new standard by which all refrigerants are now measured, as you can see in this chart:


What refrigerants are Low GWP?

  • HFO refrigerants are made of organic compounds and have significantly lower GWP than their HFC counterparts.
  • NH3 or ammonia has a GWP of 0, the lowest of any product available. However, its toxicity may make it unsuitable for your business.
  • Propane satisfies Low GWP standards, but is highly flammable.

Heatcraft: Meeting Your Low-GWP Needs

With the most experience of any manufacturer in North America, Heatcraft leverages over 100 years of refrigeration knowledge – and we offer the broadest range of Low GWP-compliant products.


The characteristics of Low GWP refrigerants:

Global Warming Potential

GWP of 1

GWP of 0

Most satisfy Low GWP

(< 300) thresholds

GWP of 3


Not flammable

Not flammable

Low to mildly flammable

Highly flammable


Low toxicity

High toxicity

Low toxicity

Low toxicity



HFOs & Blends (A2L)


So, why should you adhere to Low GWP standards?

Have specific questions on Low GWP regulations? Talk to the experts.

Highly Qualified for Low GWP

Heatcraft has the expertise, performance, reliability, and product range to bring Low GWP to your new and existing applications, and deliver equal levels of performance and reliability across the board:

We'll analyze your facilities and determine the best course of action for Low GWP compliance, based on the intricacies of the regulatory requirements for your business needs, and more!

We'll conduct extensive application assessments for:

Remove the risk of going it alone.

Choose Heatcraft and choose the best partner for Low GWP.

To learn more, contact a Heatcraft Refrigeration representative:

Our Low GWP Offerings

Unit Coolers


Low Profile (LOP), Low Velocity Center Mount (LVCM), Medium Profile (MP) and Large Profile (LUC) CO2 unit coolers are designed for use with carbon dioxide refrigeration systems, which are optimized for lifecycle climate performance (LCCP). These units are an environmentally friendly solution for walk-in coolers or freezers, floral storage, fresh fruit and vegetables, dough retarding, fresh meat storage and preparations, tight storage situations, work rooms, warehouse coolers or freezers and numerous other commercial and industrial applications.

eCO2Boost Racks


Heatcraft’s eCO₂Boost Transcritical Booster System is a cost-effective solution for cold storage applications. It uses naturally occurring,  environmentally friendly and energy efficient CO₂ refrigerant. We carefully designed and optimized this rack to meet the needs of your unique applications, and it is offered in a wide range of capacities. With eCO2Boost racks, unit coolers and gas coolers, Heatcraft Refrigeration Products offers a complete Low GWP refrigeration package that provides efficiency, top performance and reliability.

Air-Cooled Gas Cooler


The gas cooler is designed to be used in transcritical CO₂ applications. It offers you ample capacity range from 10 to 275 tons to satisfy an array of applications. The gas cooler uses the latest variable speed motor technology to provide critical sound and energy performance where significant energy savings are essential. An extensive list of options is available to match the most rigid application requirements. Heatcraft offers the gas cooler in single or double wide fan configurations.

Third-party system integration:

Depending on your operations or location, we know you may have unique application requirements that could call for specific technologies. That’s why Heatcraft partners with adiabatic gas cooler, control system and other providers to help you assess and address your individual needs.

Reach Out To Our

Refrigeration Experts