( These calculations are based upon a split or ducted air conditioner device. They are also based on the Energy Cost Assurance price of ₤ 0.34/ kWh for the April-- June 2023 period). http://m.wown.svr2.yedam.com/member/login.html?noMemberOrder=&returnUrl=http%3a%2f%2fBbs.Pku.Edu.cn%2F