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R32 (difluoromethane) or R290 (propane) both have ozone depletion potential (ODP) of 0 and are in common use with new refrigeration units. This technology look
by nippoo 5y ago
R32 (difluoromethane) or R290 (propane) both have ozone depletion potential (ODP) of 0 and are in common use with new refrigeration units.
This technology looks interesting due to its simplicity and could potentially be cheaper than existing phase-change systems which are prone to leaking and need maintenance. But refrigerants which don't directly harm the ozone layer are already here...
- jjeaff 5y agoAnd propane has close enough properties to r21 that it can be used as a drop in replacement. Of course, HVAC guys flip their lid at the thought of it. Because they want to get that sweet markup on the extremely expensive, discontinued r21 or a pricey alternative.