# R-290 (Propane) — HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant

For R-290 (Propane), retrofit / new is N; ashrae safety class is A3; gwp is 3; listing status / notes is Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions, verified against its source on 2026-08-11.

- **Refrigerant:** R-290 (Propane) _(verified: appears in the quote below)_
- **Retrofit / new:** N _(verified: appears in the quote below)_
- **ASHRAE safety class:** A3 _(verified: appears in the quote below)_
- **GWP:** 3 _(verified: appears in the quote below)_
- **Listing status / notes:** Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions. _(verified: appears in the quote below)_

## What the source says

> R-290 (Propane) | | N | 0 | 3 | A3 | <https://www.govinfo.gov/content/pkg/FR-2015-04-10/pdf/2015-07895.pdf> April 10, 2015 (pdf) (769 KB) | Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions. |

## Source

- https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant](https://referencesource.org/hvac-component-refrigerant-compatibility/).