What is the difference between 410 and 407?

Asked by: Leopoldo Hammes MD  |  Last update: January 22, 2026
Score: 5/5 (8 votes)

In comparison to R407C, R410A has a higher evaporation heat transfer coefficient and a higher condensation heat transfer coefficient. The heat transmission coefficient of R410A in a smooth horizontal tube is about 50% higher than that of R407C, according to the evaporation test results.

Which is better, 407C or 410A?

Freon™ 407C exhibits similar performance to HCFC-22, while Freon™ 410A gives significantly higher pressure and refrigeration capacity. General physical properties for Freon™ 407C and Freon™ 410A are shown in Table 3.

What freon is compatible with 410A?

What are my options for replacing R-410A? Because there are no retrofits for R410A, a replacement is needed. The replacements for R-410A are the two A2Ls, Forane® R-32 and R-454B. Forane® R-32 can be used in new equipment designed specifically for mildly flammable refrigerants as a replacement for R-410A equipment.

When was R410A banned?

Importantly, the January 1, 2025 ban on manufacture of R-410a equipment remains in effect. Contractors must still prepare for the transition to mildly flammable A2L refrigerants, but this new rule averts a supply chain trainwreck.

What is 407 gas used for?

Freon™ 407C refrigerant performs similarly to HCFC-22 under evaporator temperatures ranging from –7 to 10 °C (20 to 50 °F). It is designed for use in new equipment and as a service refrigerant for existing HCFC-22 air conditioning, heat pump, and medium temperature refrigeration equipment.

What is the difference between the refrigerant gases R22 and R407C used in air conditioning?

23 related questions found

What is the equivalent of 407 gas?

Freon™ 407C has been a popular R-22 replacement because of its properties, which include: Similar cooling capacity, energy efficiency, and pressures as R-22 in systems.

Is 407C being phased out?

The commonly used synthetic refrigerants such as R134a, R407C and R410A have a GWP value higher than 2,500. As a result, their production is being phased out.

How much longer will R-410A be available?

R-410A will still be sold and manufactured or imported to the US until the end of 2036. In California, the full ban on the refrigerants is expected to go into effect on January 1, 2030.

Why is R-410A bad?

R-410A has an ODP of zero, but its Global Warming Potential is 1890, which is fairly high. For context, carbon dioxide's GWP is 1, and it's the standard by which other refrigerants are measured, meaning that R-410A contributes to global warming 1890 times as much as carbon dioxide.

What will replace 410A in 2025?

Cooling systems shifting from R-410a to newer refrigerants like R-454B refrigerant and R-32 refrigerant will be arriving in 2025. These new coolants are developed to be friendlier to the environment and meet updated regulations about global warming.

What is the best replacement for R-410A?

Because its properties and performance match those of R-410A, Opteon™ XP41 is an ideal replacement. Other properties that make it adaptable for its many uses include the lowest GWP of 1377—30% lower than R-410A—and an A1 nonflammable ASHRAE safety rating.

What happens if you put R-22 in a R-410A system?

If you use R-22 in the same system as R-410a, the compressor is going to be trying to work two different fluids through the same coils as both refrigerants respond differently to different mechanical situations. As you might imagine, this isn't going to go well for your air conditioner or heat pump.

Can anyone buy 410A refrigerant?

The EPA has rules about the purchasing of refrigerant according to its Clean Air Act, Section 608, 40 CFR Part 82, Subpart F. The rules state that those who purchase R-410A or any other ozone-depleting substance or ODS must have EPA certification.

Why is 410A so expensive?

Several factors can influence the cost of R-410A refrigerant, including: Supply and Demand: As the phase-out progresses, the supply of R-410A will diminish, causing prices to increase due to scarcity.

Can I use R134a in place of R-410A?

An environmentally more benign refrigerant for replacing refrigerant R410A includes a majority portion of refrigerant R32 and a minority portion of refrigerant R134a, the volumetric capacity of the replacement refrigerant permitting it to be used as a near or exact drop-in replacement for refrigerant R410A in terms of ...

What is the most preferred refrigerant?

R-134a refrigerant, also known as Tetrafluoroethane, is a popular choice for commercial refrigeration systems due to its low toxicity and non-flammability. It is commonly used in medium- and high-temperature applications, such as refrigerators, air conditioning units, and chillers.

Why are they banning R-410A?

Why R-410A Is Being Phased Out. Because R-410A operates at such high pressures, there is an increased risk of an environmentally harmful refrigerant leak during maintenance and repair work. The R-410A phase-out means new HVAC systems will use more sustainable refrigerants.

Can I use R-32 instead of R-410A?

R32 has a higher compressor discharge temperature than R410A, and will increase wear on the compressor, reducing its life significantly. Should any problem arise from a system change such as this, any liability would rest ENTIRELY with the person who carried out the change.

Which freon is being phased out?

R-22 is an HCFC refrigerant that is often used in air-conditioning equipment. To protect the Earth's protective ozone layer, the United States is phasing out R-22, along with other chemicals.

What is the new Freon to replace 410A?

Starting in January 2025, no new HVAC systems will use R-410A refrigerant. Instead, most residential systems will use either R-32 or R-454B refrigerant, both of which have a comparably lower environmental impact.

Why is R32 refrigerant banned?

R32 is a synthetic greenhouse gas. If released to the atmosphere it can contribute to climate change.

What is the new freon coming out in 2025 in the USA?

The Lennox choices for 2025 Compliant Refrigerant R-454B for whole-home systems and R-32 for mini-splits, both have a lower GWP than the previous refrigerant and are formulated to provide excellent, reliable performance of your system for years to come.

Can I replace R-410A with R-454B?

No. R-454B is NOT a drop-in replacement for R-410A. Although many of the characteristics of R-454B are similar to R-410A, the use of R-454B is restricted by code and regulation to systems for which it was specifically designed.

What will replace 407C?

Opteon™ XP20 (R-449C) refrigerant is a hydrofluoroolefin (HFO) option that replaces R-22 and R-407C in residential and commercial air conditioners, as well as direct expansion chillers. It has similar performance and properties to R-22 and R-407C and can be used in both retrofit and new equipment.