Linked from

The 38 pages that link to Heat pump, each with the reason it gives.

• Energy efficiencyBroader topic: It can deliver several units of heat per unit of electricity by moving heat rather than generating it directly.

• RefrigerationCompared with: It uses the same cycle as refrigeration but often values the heat delivered.

• Energy transitionBroader topic: Heat pumps can replace fossil-fuel boilers while delivering more heat than their electrical input.

• Carnot cycleRelated: The reversed cycle gives the ideal upper bound on heat-pump performance.

• Thermal energy storageRelated: Pairing heat pumps with thermal stores shifts heating or cooling to favorable times.

• Combined heat and powerCompared with: Heat pumps can provide building heat without generating electricity on site.

• District heatingRelated: Large heat pumps can raise the temperature of waste, ambient, or geothermal heat for distribution.

• RefrigerantRelated: Reversing refrigerant flow lets the same system provide heating or cooling.

• Air conditioningRelated: In cooling mode, it operates as an air conditioner; in heating mode, it reverses the cycle.

• Vapor-compression refrigerationRelated: The same cycle can be operated to deliver heat rather than cooling.

• Heat engineCompared with: Its desired output is delivered heat rather than the work produced by an engine.

• HydrofluorocarbonRelated: Many heat pumps use HFCs to move heat efficiently.

• Passive coolingCompared with: It actively moves heat, unlike passive cooling's reliance on natural transfer.

• Hydrogen economyCompared with: For many buildings, direct heat pumps compete with converting hydrogen into a heating fuel.

• BoilerCompared with: Heat pumps can provide space heating without generating heat by boiling water.

• Waste heatCompared with: Unlike waste-heat rejection, it upgrades low-temperature heat for useful delivery.

• ElectrificationRelated: Heat pumps deliver more heat than the electrical energy they consume.

• Geothermal gradientRelated: Ground-source systems exploit relatively stable shallow subsurface temperatures rather than deep gradients.

• RefrigeratorNarrower topic: A refrigerator is a heat pump arranged to cool its interior rather than warm a room.

• Electrical wiringRelated: Heat pumps can impose significant electrical loads that shape wiring and circuit design.

• Heating, ventilation, and air conditioningBroader topic: One machine can provide both heating and cooling by reversing heat flow.

• Refrigeration cycleRelated: The same cycle can heat a building by delivering heat indoors.

• EvaporatorCompared with: An evaporator is one component, not the complete heat-transfer system.

• Waste heat recoveryRelated: It upgrades recovered low-grade heat to a temperature useful for industrial processes.

• Electricity demandRelated: Weather-driven operation can create large seasonal changes in electricity demand.

• Thermodynamic efficiencyBroader topic: Its performance is commonly reported as a coefficient of performance rather than ordinary efficiency.

• Building services engineeringCompared with: Heat pumps compete with boilers and direct electric heating as building heat sources.

• CogenerationCompared with: Heat pumps can provide useful heat without generating electricity alongside it.

• Central heatingCompared with: It can supply a central heating system by moving heat rather than generating it through combustion.

• Micro combined heat and powerCompared with: A heat pump consumes electricity to deliver heat, unlike micro-CHP’s combined production.

• MicrogenerationCompared with: It can supply building heat alongside microgeneration but consumes electricity instead of producing it.

• Water heatingRelated: Heat-pump water heaters draw heat from surrounding air, ground, or water rather than generating it directly.

• 1,1,1,2-TetrafluoroethaneRelated: R-134a can serve as the working fluid in heat-pump systems.

• Carnot heat engineRelated: Its ideal coefficient of performance follows from reversing a Carnot engine.

• Energy engineeringRelated: Heat pumps deliver useful heating by upgrading ambient or waste heat.

• Energy industryRelated: Electrified heating shifts building energy demand toward the power industry.

• Home applianceRelated: Refrigerators and air conditioners use heat-pump cycles to move heat.

• Major applianceRelated: Refrigerators and some clothes dryers use heat-pump cycles to move heat efficiently.