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) is an extension of multiplication to a game formula_2 and a positive game formula_20 (the "unit") defined by The incentives formula_22 of a game formula_20 are defined as formula_24. Overheating is an extension of heating used in Berlekamp's solution of Blockbusting, where formula_2 "overheated from" formula_26 "to" formula_3 is defined for arbitrary games formula_28 with formula_29 as "Winning Ways" also defines overheating of a game formula_2 by a positive game formula_32, as Chilling is a variant of cooling by formula_34 used for Go endgames and is defined by This is equivalent to cooling by formula_36 when formula_2 is an "even