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
Cooling and heating (combinatorial game theory) doing so, while heating, warming and overheating are operations that more or less reverse cooling and chilling. The cooled game formula_1 ("formula_2 cooled by formula_3") for a game formula_2 and a (surreal) number formula_3 is defined by The amount formula_3 by which formula_2 is cooled is known as the "temperature"; the minimum formula_9 for which formula_10 is infinitesimally close to formula_11 is known as the "temperature" formula_12 "of" formula_2; formula_2 is said to "freeze" to formula_10; formula_11 is the "mean value" (or simply "mean") of formula_2. Heating is the inverse of cooling and is defined as the ""integral"" Norton multiplication