pumps heat from one location to another. A heat pump can remove heat from the inside of a building and pump it outside (similar to an air conditioner), or it can take heat from outside and pump it indoors.

A heating and cooling unit that draws heat from an outdoor source and transports it to an indoor space for heating purposes; or inversely, draws cold from an outdoor source and transports it to an indoor space for cooling purposes.

A chiller unit designed to refrigerate and heat the water as needed. A dual stage controller is required to operate a heat pump.

A refrigeration compressor, usually electrically driven, that is operated in reverse. To obtain heat, the evaporator side (cooling coil) is exposed to water, air or ground. The coil transfers the heat from this source to the condenser coil, where it discharges the heat to the water in the pool or spa.

An HVAC unit that is actually an air conditioner that will run in reverse, generating heat from the cooling of the system. This system usually requires additional heat strips to satisfy heating requirements in colder climates.

A device that uses compression and decompression of gas to heat and/or cool a building.

A heating/cooling system that operates like an air-conditioner in summer and a heater in winter. Electrically operated, it is more efficient than electric resistance heat in most climates.

a system that takes heat from a cooler outside and delivers that heat to a warmer inside

An air–conditioning unit which is capable of heating by refrigeration, transferring heat from one (often cooler) medium to another (often warmer) medium, and which may or may not include a capability for cooling. This reverse–cycle air conditioner usually provides cooling in summer and heating in winter.

an device that is exactly the reverse of a refrigerator, driven by work (electricity) and produces a temperature difference; the heat pump has become a very popular alternative for increasing the exergy efficiency when heating houses [Go to source

Compression cycle system used to supply heat to a temperature controlled space. Same system can also remove heat from the same space.

An air conditioning system that reverses the flow of refrigerant, thus removing heat from outdoor air and disposing of the heat through a coil indoors.

apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building

a central heating and cooling system

a device that uses a refrigerant cycle to take low-quality heat (low

a device that warms or cools a building by transferring heat from a relatively low-temperature reservoir to a higher temperature

a device used for both the heating or cooling of a space by transferring hot and cold between two reservoirs

a device which applies external work to extract an amount of heat QC from a cold reservoir and delivers heat QH to a hot reservoir

a device which draws heat from a suitable heat source (principally underground or surface water the soil or the air) and converts it with the assistance of a supplementary energy source (e

a device which extracts available heat from one area and transfers it to another

a heating and cooling unit in one

a heating, cooling and hot water system designed to tap the natural energies of our environment

a high efficiency heater, but it is not an electric heater

a high efficiency heating and cooling system

a high efficient system for your home or office

a highly efficient, year-round, home-heating and -cooling system that runs entirely on electricity

a home appliance similar to a fridge or freezer that heats and cools the atmosphere in your home

a home comfort unit that will heat your home in the winter and cool it efficiently in the summer

a kind of air conditioner that is capable of not

a kind of refrigerator, and there is no "reverse" about it

a machine that by reversing it's refrigeration cycle can provide heating in stead of cooling

a machine that resembles your standard air conditioner

a mechanical device used for heating and cooling which operates on the principle that heat can be moved from a warmer temperature to a cooler temperature

an air conditioner capable of also providing heating for your home by reversing the normal flow of refrigerant (freon) within the system

an air conditioner that contains a valve that lets it

an Air Conditioning system which can also provide very efficient heating

an all-in-one heating and air conditioning system that works

an apparatus that extracts heat from one area to another, allowing the unit to supply more heat than the equivalent energy supplied to the pump

an appliance that extracts heat from one environment and discharges it into another

an efficient method of cooling your home in summer and warming it in winter

an efficient way to cool your home in the summer and heat it in the winter

an electrical device that extracts heat from one place and

an environmental energy technology that extracts heat from low temperature sources (eg ground water), upgrades it to a higher temperature and releases it when required for space and water

an interesting piece of heating and cooling equipment

an outdoor air conditioning unfinished wood furniture desk unit capable of either cooling or heating an indoor space

an outdoor air conditioning unit capable bar folding stool wood of either cooling or heating an indoor space

a particular reversible compressor this produces air conditioning in addition to heating from the equivalent unit

a refrigeration system that has the capability of being used for both

a refrigerator whose inside is the great outdoors and whose outside is the room to be heated

a reversible compressor that produces air conditioning and heating from the same unit

a reversible device that does mechanical work to extract heat from a cooler place and deliver heat to a warmer place

a reversible system and is commonly used both to heat and to cool buildings

a simple and energy efficient way to heat a home

a somewhat more complex heating alternative that can double as an air conditioner

a system designed to provide useful heating and cooling, and its actions are essentially the same for either process

a system that uses a refrigeration-style compressor to transfer heat from outside to inside, in order to heat offices or homes

a unit that cools in summer and heats in winter

a way of heating and cooling your home, according to your needs

a reverse-cycle refrigeration system designed to perform both heating and cooling operations

An apparatus that extracts heat from a fluid or gas that is marginally above ambient temperature. Heat pumps are commonly used to heat (or cool) greenhouses and laboratories.

a device to transfer heat from a heat source to a heat sink. As the heat source cools it transfers heat to the sink which then warms up.

A reversible air conditioner that can extract heat from outside as well as inside air.

A unit that handles both heating and cooling. In some climates, a heat pump may handle your heating and cooling needs more efficiently than a furnace and air conditioner.

A system that supplies both heating and cooling. In the heating cycle, the heat pump removes heat from the outside air and pumps it indoors. When cooling, the heat pump functions just like an air conditioner, absorbing heat from indoors and rejecting it to the outdoors.

A heat pump is a reverse cycle air conditioner. When you run your air conditioner, your outdoor unit will be blowing hot air, (in other words, removing the heat from your home and sending it outside). When you run your heat pump, you reverse the flow of refrigerant and remove the heat from the atmosphere outside and blow it inside. Kilowatt (kW) - A kilowatt equals 1,000 Watts. (See Watt) SEER - Seasonal energy efficiency ratio measures how efficiently a residential central cooling system will operate over an entire cooling season, as opposed to a single outdoor temperature. As with EER, a higher SEER reflects a more energy efficient cooling system.

A reverse cycle refrigeration unit that both heats and cools.

A heat pump in which a closed loop configuration circulates a fluid whose heat (or cooling) is exchanged to the heating (or ventilation) of a house.

A mechanical-compression cycle refrigeration system that can be reversed to either heat or cool the controlled space.

One or more factory-made assemblies which include an indoor conditioning coil, compressor(s) and outdoor coil or refrigerant-to-water heat exchanger, including means to provide both heating and cooling functions.

A heat pump is an HVAC unit that heats or cools by moving heat. During the winter, a heat pump draws heat from outdoor air and circulates it through your home's air ducts. In the summer, it reverses the process and removes heat from your house and releases it outdoors.

A refrigeration system used to supply heat or cooling using valves to reverse the refrigerant gas flow.

A refrigeration machine possessing the capability of reversing the flow so that its output can be either heating or cooling. When use for heating extracts heat from a low temperature source and raises it to the point at which it can be used.

A pump used in either heating or cooling.

A heating and air conditioning unit that heats or cools by moving heat.

An electricity powered device that extracts available heat from one area (the heat source) and transfers it to another (the heat sink) to either heat or cool an interior space or to extract heat energy from a fluid.

A device used for either the heating or cooling of a space by transferring heat between two reservoirs.

An air conditioning system that is capable of reversing the direction of refrigerant flow to provide either cooling or heating to the indoor space.

An air conditioner capable of heating by refrigeration. It may or may not include a capability for cooling. Outside air or water is used as a heat source or heat sink, depending upon whether the system is heating or cooling.

A product that works just like an air conditioner in cooling mode; however, in heating mode, the refrigerant flow is reversed and heat is extrated from the outside air too heat your home.

Devices that extract available heat from one area (the heat source) and transfers it to another (the heat sink) to either heat or cool an interior space. For instance, in heating climates, during the winter the heat pump extracts heat from the air outside and transfers it to the inside of the house to heat the house. In cooling climates, during the summer the heat pump extracts heat from the air inside the house, cooling it, and transfers it outside. Heat pumps work very much like your refrigerator: heat is released from the back of your refrigerator as it grows cooler inside. This is exactly like cooling your house during the summer. Heat pumps can be very energy efficient, because instead of actually generating heat like a furnace, they just draw heat from the outside. But because the efficiency drops as the air outside gets very cold, many builders are turning instead to ground-loop or geothermal heat pumps. These heat pumps operate more efficiently than the standard air-source heat pumps, because the ground doesn't get as cold as the outside air (and during the summer, it doesn't heat up as much).

a machine similar to a condensing unit but can reverse it's refrigeration cycle and extract heat from an external source, air or water and then pump it back in to a building to provide heating. Very efficient because even when it is -15ºC outside there is still heat in the air and a heat pump can extract this heat, upgrade it and use it.

An air conditioner that contains a valve that allows it to alternate between heating and cooling.

A year-round air-conditioning system employing refrigeration equipment in a manner which enables usable heat to be supplied to a space during the winter period, and by reversing the operation cycle to extract heat from the same space during the summer period. When operating as a heating system, heat is absorbed from an outside medium (either air, water, or the earth) and this heat, together with the heat equivalent of the work of compression, is supplied to space to be heated. When operating on the cooling cycle, heat is absorbed from the space to be cooled and this heat, together with the heat equivalent of the work of compression, is rejected to the outside medium.

A Heat Pump is a reverse cycle air conditioner. The Heat Pump uses a compression cycle system to supply heat or remove heat remove a temperature controlled space. When you run your air conditioner, your outdoor unit will be blowing hot air, (in other words, removing the heat from your home and sending it outside). When you run your heat pump, you reverse the flow of refrigerant and remove the heat from the atmosphere outside and blow it inside. When the temperature dips below 40 degrees outside, the Heat Pump labors in producing heat so they install a back up or auxiliary electric heat strip to supplement the Heat Pump. Electric Heat strips are very expensive to operate. In southern climates where it rarely dips below 40 degrees the heat pump is very efficient. A 3 to 1 savings in heating compared to electric heat strips.

A heat pump is basically an air conditioner with a valve that allows it to operate in reverse, removing heat from your house and transferring it outdoors in the summer, and removing heat from outdoor air and transferring it into your house in the winter. Because heat pumps do not actually create heat - they just move it from one place to another - heat pumps can be more efficient than other forms of heating.

Heating and/or cooling equipment that, during the heating season, draws heat into a building from outside and, during the cooling season, ejects heat from the building to the outside. Heat pumps are vapor-compression refrigeration systems whose indoor/outdoor coils are used reversibly as condensers or evaporators, depending on the need for heating or cooling.

A forced air heating and air conditioning system. In winter, heat is extracted from air and circulated through the house. In summer, heat is extracted and discharged outdoors, and the cooled air circulated through the house.

a device at the heart of an EES designed to extract heat from a low-grade source (like the earth) by way of an open or closed loop and concentrate it for use to heat a space. It consists of a compressor, a blower motor and a circulating pump. A reversing valve enables it to switch functions to provide both air conditioning and heat to a home. It may be either console-type or water-water.

This is a compression system using refrigerant that can be used for both heating and cooling.

A mechanical device which uses compression and decompression of gas to heat and/or cool a house

An electric cooling and heating system.

The antithesis of the air conditioner, the heat pump's cooling coil removes heat from the air while the condenser coil transfers it to water cycling through it.

A mechanical device that transfers heat from one medium to another, thereby cooling the first and warming the second.

Device used to extract heat from a warm body - for example the surrounding soil. The thermal energy is transferred to a gas which can be used to heat colder objects.

Apparatus that transfers heat from one location to another using some kind of energy such as electricity. The key component of an air conditioner or fridge.

A unit that supplies heating or cooling to an interior space by either absorbing heat from or rejecting heat to the outside.

A refrigerating system employed to transfer heat into a space or substance. The condenser provides the heat while the evaporator is arranged to pick up heat from air, water, etc. By shifting the flow of air or other fluid, a heat pump system may also be used to cool the space.

A comfort system in which the refrigeration cycle is reversed by using a four-way valve to supply heating as well as cooling.

A central heating and cooling unit that heats by using the compressor instead of standard gas or electric heat. Said to be high-efficiency methods of heating.

A year-round heating and air-conditioning system employing a refrigeration cycle. In a refrigeration cycle, a refrigerant is compressed (as a liquid) and expanded (as a vapor) to absorb and reject heat. The heat pump transfers heat to a space to be heated during the winter period and by reversing the operation extracts (absorbs) heat from the same space to be cooled during the summer period. The refrigerant within the heat pump in the heating mode absorbs the heat to be supplied to the space to be heated from an outside medium (air, ground or ground water) and in the cooling mode absorbs heat from the space to be cooled to be rejected to the outside medium.

An air-source heat pump is the most common type of heat pump. The heat pump absorbs heat from the outside air and transfers the heat to the space to be heated in the heating mode. In the cooling mode the heat pump absorbs heat from the space to be cooled and rejects the heat to the outside air. In the heating mode when the outside air approaches 32o F or less, air-source heat pumps loose efficiency and generally require a back-up (resistance) heating system.

A heat pump in which the refrigerant exchanges heat (in a heat exchanger) with a fluid circulating through an earth connection medium (ground or ground water). The fluid is contained in a variety of loop (pipe) configurations depending on the temperature of the ground and the ground area available. Loops may be installed horizontally or vertically in the ground or submersed in a body of water.

The efficiency of a heat pump, that is, the electrical energy to operate it, is directly related to temperatures between which it operates. Geothermal heat pumps are more efficient than conventional heat pumps or air conditioners that use the outdoor air since the ground or ground water a few feet below the earth's surface remains relatively constant throughout the year. It is more efficient in the winter to draw heat from the relatively warm ground than from the atmosphere where the air temperature is much colder, and in summer transfer waste heat to the relatively cool ground than to hotter air. Geothermal heat pumps are generally more expensive ($2,000 $5,000) to install than outside air heat pumps. However, depending on the location geothermal heat pumps can reduce energy consumption (operating cost) and correspondingly, emissions by more than 20 percent compared to high efficiency outside air heat pumps. Geothermal heat pumps also use the waste heat from air-conditioning to provide free hot water heating in the summer.

An electric device with both heating and cooling capabilities. It extracts heat from one medium at a lower (the heat source) temperature and transfers it to another at a higher temperature (the heat sink), thereby cooling the first and warming the second. (See: geothermal, water source heat pump.)

A refrigerating system employed to transfer heat into or out of a space or substance. Heat pumps use direct expansion vapor compression circuits and are referred to as "reverse-cycle air conditioners."

A refrigeration system that extracts heat from one substance and transfers it to another portion of the same substance or to a second substance at a higher temperature for a beneficial purpose.

Apparatus that can heat but also cool by changing its cycle and using a refrigerant, a compressor and heat exchanger.

Like an air conditioner or refrigerator, a heat pump moves heat from one location to another. In the cooling mode, heat pumps reduce indoor temperatures in the summer by transferring heat to the ground. Unlike an air conditioning unit, however, a heat pump's cycle is reversible. In winter, a heat pump can extract heat from the ground and transfer it inside. The energy value of the heat thus moved can be more than three times the cost of the electricity required to perform the transfer process.

A year-round heating and air-conditioning system in which refrigeration equipment supplies both heating and cooling through ducts leading to individual rooms. A heat pump generally consists of a compressor, both indoor and outdoor coils, and a thermostat. In the RECS, all heat pumps are considered to be electric. (See Heating Equipment.)

a device that mov

a device that transfers heat against its natural direction of flow

a device that transfers heat from a low to a

an electrically powered mechanical device that takes heat from one location and moves it to another location

A device which uses work, or exergy, to leverage heat. Heat is moved from cold to hot through the use of work. Coefficients of Performance may be on the order of 1 to 10 for such a device.

A heat pump is a machine or device that moves heat from one location to another via work.