Replacing　fuel-fired　boilers　by　using　efficient　heat　pump　plants　to　recover　industrial　waste　heat　is　an　effective　solution　to　achieve　the　＂dual　carbon＂　target.　Three　novel　transcritical　CO2　high-temperature　heat　pump　systems　(Ej-Evap2-A,　Ej-Evap2-B,　and　Ej-Evap2-C)　are　proposed　in　this　study,　by　introducing　the　technique　of　dual　-temperature　evaporation　realized　with　an　ejector　for　cascade　heat　absorption　from　the　heat　source.　Consid-ering　the　application　in　the　scenario　of　industry　requirement　of　hot　water　heating,　the　life　cycle　performances　of　the　new　proposed　heat　pump　systems　and　fuel-fired　boilers　are　comprehensively　studied　from　the　perspectives　of　energetic,　emissions,　and　economic.　A　sensitivity　analysis　about　the　new　configuration　heat　pump　system　is　also　conducted　considering　the　variation　in　electricity　and　coal　price.　The　results　demonstrate　there　exists　an　opti-mum　discharge　pressure　that　maximizes　the　coefficient　of　performance　(COP).　Ej-Evap2-C　shows　a　maximum　COP　of　4.85,　which　is　14.40%　higher　than　the　baseline　CO2　heat　pump　system　(Base),　and　the　exergy　efficiency　of　Ej-Evap2-C　is　7.86-15.19%　higher　than　that　of　Base.　Among　the　eight　heating　methods　including　coal-fired　boilers　(CFB),　gas-fired　boilers　(GFB),　electric　heating　boiler　(EHB)　and　five　kinds　of　CO2　heat　pump　systems,　Ej-Evap2-C　shows　the　least　pollutant　emissions　and　life　cycle　cost.　Furthermore,　Ej-Evap2-C　has　the　shortest　payback　period　of　fewer　than　7　years　compared　with　the　CFB.　The　dual-temperature　evaporation　CO2　high　-temperature　heat　pump　is　promising　to　substitute　traditional　fuel-fired　boilers　to　generate　high-temperature　fluid　in　the　future.