R-410A bromine or chlorine, R-410A (which contains only fluorine) does not contribute to ozone depletion, and is therefore becoming more widely used, as ozone-depleting refrigerants like R-22 are phased out. However, it has a high global warming potential (1700 times the effect of carbon dioxide), similar to that of R-22. Since R-410A allows for higher SEER ratings than an R-22 system, by reducing power consumption, the overall impact on global warming of R-410A systems will be substantially lower than that of R-22 systems due to reduced greenhouse gas emissions from power plants. R-410A R-410A, sold under the trademarked names AZ-20, EcoFluor
Glossary of geothermal heating and cooling Glossary of geothermal heating and cooling The "Glossary of Geothermal Heating and Cooling" provides definitions of many terms used within the Geothermal heat pump industry. The terms in this glossary may be used by industry professionals, for education materials, and by the general public. In a closed loop system, the heat exchanger is typically coils of high-density polyethylene pipe installed in the ground under or around a building. A heat transfer fluid, usually water or water mixed with antifreeze (propylene glycol, ethanol or methanol), is circulated through this pipe, warming or cooling to the temperature of the earth or rock