3 ms·
Refrigerating and air conditioning equipment can use plain hydrocarbon refrigerants such as propane and isobutane. US approval is fairly recent -- less than 10
by philipkglass 8y ago
Refrigerating and air conditioning equipment can use plain hydrocarbon refrigerants such as propane and isobutane. US approval is fairly recent -- less than 10 years ago -- as you can see in this EPA table:
https://www.epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps https://www.epa.gov/snap/substitutes-residential-and-light-c...
I believe that products using these low-GWP, zero-ODP refrigerants are marketed using the term "Greenfreeze."
https://cleantechnica.com/2008/09/29/first-greenfreeze-climate-safe-freezer-launches-in-the-united-states/ https://cleantechnica.com/2008/09/29/first-greenfreeze-clima...
- jabl 8y agoHere in Europe (and I believe in many other parts of the world as well) propane and butane have been the standard refrigerant in domestic appliances for a couple of decades. I think the industry went straight to these when CFC's were banned. Considering that your average refrigerator contains a quite modest amount of refrigerant, compared to all the other flammable stuff in your average apartment, it's not really any significant fire risk.
- gl00pp 8y agoWow I was in HVAC for 15 years and NEVER heard about 'greenfreeze' WOW. Thanks for links!