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There are heat pumps which use CO2 as their refrigerant. Apparently they are more efficient (and less potentially hazardous for people and climate) than most al
by Tharkun 8y ago
There are heat pumps which use CO2 as their refrigerant. Apparently they are more efficient (and less potentially hazardous for people and climate) than most alternatives.
- thinkcontext 8y agoFrom what I've seen it's used in water heater heat pumps, not space heating and cooling. Perhaps with tighter regulations on HFCs CO2 will be more widely used.