“ A CO2 heat pump uses carbon dioxide as a refrigerant. Carbon dioxide is a naturally occurring gas, and it has a very low boiling point. This makes it ideal for use in a heat pump. When the carbon dioxide is compressed, it becomes a liquid. This liquid then evaporates, and as it does so, it absorbs heat from the surrounding air.”
“ A CO2 heat pump uses carbon dioxide as a refrigerant. Carbon dioxide is a naturally occurring gas, and it has a very low boiling point. This makes it ideal for use in a heat pump. When the carbon dioxide is compressed, it becomes a liquid. This liquid then evaporates, and as it does so, it absorbs heat from the surrounding air.”