Tim Chapp, P.E.
Tim Chapp, P.E.
Refrigeration Engineer

With more than 10 years of refrigeration engineering design, Tim has concentrated most of his professional career in industrial refrigeration. At Stellar, Tim is responsible for engineering and coordination efforts, troubleshooting, specifications and analysis related to processing and distribution facilities. He has experience working with a wide range of refrigerants, and is eager to broaden his design expertise with Stellar.

Industrial Refrigeration: Ammonia and CO2 Systems

Breaking down your options as the R22 refrigerant is phased out

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Industrial Refrigeration: Ammonia and CO2 Systems


The turn of the new year signaled the most recent step of the R22 refrigerant phase-out in the United States.

As a reminder, here’s the timeline according to the EPA final rule:

  • On January 1, 2018, R22 production dropped 30 percent from the 2017 supply to 9 million pounds
  • On January 1, 2019, production will drop 55 percent from the 2018 supply to 4 million pounds
  • On January 1, 2020, R22 will be phased out completely with no new or imported R22 allowed in the U.S.

Since the supply just dropped at the beginning of this year, that means R22 prices (and repair prices) are increasing yet again.

If your refrigeration system uses R22, or any other refrigerant with a high Global Warming Potential (GWP), you have some decisions to make — and the clock is ticking.