Seer Heat Pump
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 Ductless Mini Split Air Conditioner Heat Pump 18000 BTU 18000 13 SEER 15 Ton $968.00 Time Remaining: 29d 15h 15m Buy It Now for only: $968.00 |
 40 Ton 13 Seer GOODMAN R 410a AC Heat Pump Split System INSTALLED $3,250.00 Time Remaining: 1h 21m |
 RPRL048JEC Rheem 4 Ton 17 SEER Heat Pump Condenser Prestige 2 Stage $2,871.00 Time Remaining: 28d 19h 49m Buy It Now for only: $2,871.00 |
 3 Ton 13 Seer GOODMAN R 410a AC Heat Pump Split System INSTALLED $2,800.00 Time Remaining: 14h 18m |
 DSZC180361 Goodman 3 Ton 18 SEER Heat Pump Condenser 2 Stage Communicating $2,444.00 Time Remaining: 28d 23h 14m Buy It Now for only: $2,444.00 |
 35 Ton 13 Seer GOODMAN R 410a AC Heat Pump Split System INSTALLED $3,000.00 Time Remaining: 14h 18m |
 18000 BTU FEDDERS Inverter Ductless Mini Split Heat Pump Air Conditioner 18 SEER $1,098.00 Time Remaining: 3d 20h 47m Buy It Now for only: $1,098.00 |
 3 ton 13 Seer GOODMAN Heat Pump R410a MOBILE HOME Package Unit INSTALLED $2,800.00 Time Remaining: 14h 18m |
 24000 BTU FEDDERS Inverter Ductless Mini Split Heat Pump Air Conditioner 18 SEER $1,099.00 Time Remaining: 25d 16h 51m Buy It Now for only: $1,099.00 |
 2 Ton 13 Seer GOODMAN R 410a AC Heat Pump Split System INSTALLED $2,200.00 Time Remaining: 14h 18m |
 Mitsubishi Mr Slim Heat Pump A C MUZ FE12NA 23 Seer NEW $500.00 Time Remaining: 22d 14h 43m Buy It Now for only: $500.00 |
 25 Ton 13 Seer GOODMAN R 410a AC Heat Pump Split System INSTALLED $2,500.00 Time Remaining: 14h 18m |
 2 1 2 Ton 25 ton 13 seer HEAT PUMP 410a Goodman Complete System $1,450.00 Time Remaining: 19d 37m Buy It Now for only: $1,450.00 |
 Heat Pump Goodman 3 Ton 13 Seer R410 Air Conditioner AC Conditioning $1,625.00 Time Remaining: 1d 5h 51m |
 3 Ton 13 seer HEAT PUMP 410a Goodman Complete System $1,595.00 Time Remaining: 19d 40m Buy It Now for only: $1,595.00 |
 Dual Fuel 90k Gas Furnace 4 Ton Heat Pump 13Seer Save $2,846.00 Time Remaining: 1d 6h 4m |
 9000 BTU 26 Seer Mitsubishi Single Zone Mini Split Heat Pump System AC $1,479.00 Time Remaining: 26d 17h 27m Buy It Now for only: $1,479.00 |
 York 2 Ton 15 Seer Heat Pump 2 SPEED $699.99 (1 Bid) Time Remaining: 1d 21h 27m |
 LSU360HV LSN360HV LG 33100 BTU 161 SEER Ductless Heat Pump Air Conditioner $2,522.00 Time Remaining: 29d 21h 50m Buy It Now for only: $2,522.00 |
 Heat Pump Goodman 2 Ton 13 Seer R410 Air Conditioner $1,279.00 Time Remaining: 2d 13h 8m |
 9000 BTU FEDDERS Inverter Mini Split Ductless Heat Pump Air Conditioner 23 SEER $894.00 Time Remaining: 3d 20h 37m Buy It Now for only: $894.00 |
 Heat Pump Goodman 2 Ton 13 Seer R410 Air Conditioner $1,279.00 Time Remaining: 2d 13h 15m |
 2 ton Goodman 13 SEER Heat Pump Condenser GSZ130241 $928.00 Time Remaining: 16d 16h 42m Buy It Now for only: $928.00 |
 Heat Pump Goodman 5 Ton 2 Stage 16 Seer R410 Air Conditioner $3,443.00 Time Remaining: 2d 13h 19m |
 19 SEER Inverter ENERGY STAR AC Ductless Mini Split Air Conditioner Heat Pump $764.00 Time Remaining: 6d 1h 10m Buy It Now for only: $764.00 |
 GPH1442H41 Goodman 35 Ton 14 SEER Horizontal Heat Pump Package Unit $2,167.00 Time Remaining: 24d 23h 51m Buy It Now for only: $2,167.00 |
 Heat Pump Goodman 3 Ton 15 Seer R410 Air Conditioner $2,225.00 Time Remaining: 2d 13h 28m |
 4 Ton 15 Seer Goodman Heat Pump System SSZ140481 AVPTC42601 $2,339.00 Time Remaining: 6d 19h 37m Buy It Now for only: $2,339.00 |
 Dual Fuel 70k Gas Furnace 3 Ton Heat Pump 13Seer Save $2,399.00 Time Remaining: 2d 16h 53m |
 24000 BTU FEDDERS Inverter Ductless Mini Split Heat Pump Air Conditioner 18SEER $1,248.00 Time Remaining: 4d 12h Buy It Now for only: $1,248.00 |
 Heat Pump Goodman 2 Ton 13 Seer R410 Air Conditioner $1,279.00 Time Remaining: 3d 13h 25m |
 Goodman 3 Ton 18 Seer Variable Speed Heat Pump Air Conditioner System $3,399.00 Time Remaining: 29d 16h 36m Buy It Now for only: $3,399.00 |
 Rheem R410A Packaged Heat Pumps 13 SEER 25 Ton $2,885.00 Time Remaining: 3d 16h 32m |
 4 Ton 15 seer Heat Pump Goodman Complete System $2,495.00 Time Remaining: 27d 20h 15m Buy It Now for only: $2,495.00 |
 Rheem R410A Packaged Heat Pumps 14 SEER 3 Ton $3,058.00 Time Remaining: 3d 16h 40m |
 12000 BTU FEDDERS Inverter Ductless Mini Split Heat Pump Air Conditioner 20 SEER $998.00 Time Remaining: 2d 7h 11m Buy It Now for only: $998.00 |
 Goodman 13 SEER Packaged Heat Pump 5 Ton GPH1360M41 $2,745.00 Time Remaining: 3d 17h |
 3 Ton 13 Seer Goodman Heat Pump GSZ130361 $1,149.00 Time Remaining: 16d 22h 3m Buy It Now for only: $1,149.00 |
 Payne Complete Split System Heat Pump 15 Ton 13 SEER $1,544.00 Time Remaining: 3d 17h 7m |
 MUZGE15NA MSZGE15NA Mitsubishi 14000 BTU 21 SEER Ductless Heat Pump System $1,787.00 Time Remaining: 29d 21h 52m Buy It Now for only: $1,787.00 |
 Goodman 13 SEER Packaged Heat Pump 25 Ton GPH1330H41 $1,934.00 Time Remaining: 3d 17h 8m |
 12000 BTU 26 Seer Fujitsu Single Zone Mini Split Heat Pump System AC $1,509.00 Time Remaining: 28d 13h 57m Buy It Now for only: $1,509.00 |
 Complete Whirlpool R 410A 13 Seer Split Heat Pump Condenser 4 Ton Package $2,233.00 Time Remaining: 3d 17h 25m |
 25 Ton 15 Seer Goodman Heat Pump System SSZ140301 AVPTC31371 $1,889.00 Time Remaining: 11d 19h 49m Buy It Now for only: $1,889.00 |
 Goodman 13 SEER Packaged Heat Pump 4 Ton GPH1348H41 $2,165.00 Time Remaining: 3d 17h 28m |
 GOODMAN 13 SEER 3 TON HEAT PUMP R410A Matching AIR HANDLER HEAT STRIP COMBO $1,925.99 Time Remaining: 2d 22h 5m Buy It Now for only: $1,925.99 |
 Goodman 13 SEER Split System Heat Pump 4 Ton ARUF $2,049.00 Time Remaining: 3d 17h 30m |
 24000 Btu 19 Seer Mitsubishi Single Zone Mini Split Heat Pump AC System $2,079.00 Time Remaining: 26d 1h 43m Buy It Now for only: $2,079.00 |
 Goodman 13 SEER Split System Heat Pump 25 Ton ARUF $1,649.00 Time Remaining: 3d 17h 38m |
 GSZ130181 ARUF182416 Goodman 15 Ton 13 SEER Heat Pump Air Conditioner System $1,366.00 Time Remaining: 7d 14h 49m Buy It Now for only: $1,366.00 |
 One Ton Brand New Senville Ductless Air Conditioner Inverter Heat Pump SEER 19 $1,068.23 Time Remaining: 4d 15h 33m Buy It Now for only: $1,068.23 |
 Rheem R410A Packaged Heat Pumps 14 SEER 5 Ton $3,958.00 Time Remaining: 3d 17h 44m |
 GPH1348H41 Goodman 4 Ton 13 SEER Horizontal Heat Pump Package Unit OUTLET $2,067.00 Time Remaining: 27d 16h 7m Buy It Now for only: $2,067.00 |
 Rheem R410A Packaged Heat Pumps 13 SEER 4 Ton $3,420.00 Time Remaining: 3d 17h 45m |
 Grunaire 30000 BTU 16 SEER Heat Pump Inverter Single Zone Ductless System $1,440.00 Time Remaining: 7d 14h 4m Buy It Now for only: $1,440.00 |
 Payne Complete Split System Heat Pump 3 Ton 13 SEER $1,807.00 Time Remaining: 3d 17h 47m |
 5 Ton 14 Seer Goodman Heat Pump System GSZ130601 AVPTC42601 $2,149.00 Time Remaining: 12d 17h 15m Buy It Now for only: $2,149.00 |
 Payne Complete Split System Heat Pump 4 Ton 13 SEER $2,108.00 Time Remaining: 3d 17h 56m |
 Brand New Goodman Manufacturing Corp 2 Ton Heat Pump 13 to14 Seer VSZ130241 $999.00 Time Remaining: 19d 23h 48m Buy It Now for only: $999.00 |
 Rheem R410A Packaged Heat Pumps 14 SEER 4 Ton $3,606.00 Time Remaining: 3d 18h 6m |
 2 Ton 13 seer HEAT PUMP410a Goodman GMC Complete System $1,325.00 Time Remaining: 14h 12m Buy It Now for only: $1,325.00 |
 Goodman 13 SEER Packaged Heat Pump 35 Ton GPH1342H41 $2,125.00 Time Remaining: 3d 18h 6m |
 Goodman AC R 410 complete system heat pump 13 seer 2 ton GSZ130241 ARUF182416 $1,340.00 Time Remaining: 17d 12m Buy It Now for only: $1,340.00 |
 Goodman 13 SEER Split System Heat Pump 5 Ton ARUF $2,295.00 Time Remaining: 3d 18h 8m |
 ENERGY STAR Mini Split Air Conditioner Ductless Heat Pump Inverter A C 20 SEER $1,122.00 Time Remaining: 9d 18h 32m Buy It Now for only: $1,122.00 |
 Complete Whirlpool R 410A 14 Seer Heat Pump and 80 Furnace Dual Fuel 5 Ton $2,790.00 Time Remaining: 3d 18h 14m |
 3 Ton Rheem 13 SEER R 410A Heat Pump Split System $1,840.00 Time Remaining: 2d 17h 15m Buy It Now for only: $1,840.00 |
 Haier R410A Heat Pump Split System 13 SEER 15 Ton $1,219.00 Time Remaining: 3d 18h 19m |
 22 SEER Mini Split Air Conditioner Ductless ENERGY STAR Heat Pump SANYO COMPR $1,041.00 Time Remaining: 17d 3h 51m Buy It Now for only: $1,041.00 |
 Payne Complete Split System Heat Pump 35 Ton 13 SEER $1,955.00 Time Remaining: 3d 18h 23m |
 LSU307HV LSN307HV LG 30000 BTU 18 SEER Ductless Heat Pump Air Conditioner $1,987.00 Time Remaining: 17d 10h 43m Buy It Now for only: $1,987.00 |
 Rheem R410A Packaged Heat Pumps 13 SEER 2 Ton $2,811.00 Time Remaining: 3d 18h 34m |
 York 5 Ton 13 Seer Heat Pump AC Condenserl R410A With Airhandler $1,705.00 Time Remaining: 15d 20h 45m Buy It Now for only: $1,705.00 |
 Goodman 13 SEER Split System Heat Pump 2 Ton ARUF $1,353.00 Time Remaining: 3d 18h 37m |
 LSU181HSV LSN181HSV LG 18000 BTU 18 SEER Ductless Heat Pump Air Conditioner $1,658.00 Time Remaining: 29d 20h 35m Buy It Now for only: $1,658.00 |
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Air-Source Heat Pumps
An air-source heat pump ia a way to supply efficient heating and cooling, particularly in warmer climates. An air-source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is made possible because a heat pump moves heat rather than converting it from a fuel, i.e. your boiler or stove.
Air source heat pumps are used not only for heating but also for cooling. While in cooling mode, it will evaporate the refrigerant in the indoor coil; as the liquid evaporates it pulls heat from the air in the house. When the gas is compressed, it passes into the outdoor coil and condenses, releasing heat to the outside air. The pressure changes caused by the compressor and the expansion valve allow the gas to condense at a high temperature outside and evaporate at a lower temperature indoors.
Working Principles
A heat pump's refrigeration system consists of a compressor and two coils. These are surrounded by aluminum fins to facilitate heat transfer. In the heating mode, liquid refrigerant in the outside coils extracts heat from the air and evaporates into a gas. The indoor coils release heat from the refrigerant as it condenses back into a liquid. A reversing valve, near the compressor, can change the direction of the refrigerant flow for cooling as well as for defrosting the outdoor coils in winter.
In heating mode, an air-source heat pump evaporates a refrigerant in the outdoor coil; as the liquid evaporates it pulls heat from the outside air. After the gas is compressed, it passes into the indoor coil and condenses, releasing heat to the inside of the house.
How to select a heat pump?
Heating efficiency for Air source heat pumps is indicated by the heating season performance factor (HSPF), which is the total space heating required during the heating season, expressed in Btu, divided by the total electrical energy consumed by the heat pump system during the same season, expressed in watt-hours.
Cooling efficiency is indicated by the seasonal energy efficiency ratio (SEER), which is the total heat removed from the conditioned space during the annual cooling season, expressed in Btu, divided by the total electrical energy consumed by the heat pump during the same season, expressed in watt-hours.
The Heating Seasonal Performance Factor (HSPF) rates both the efficiency of the compressor and the electric-resistance elements. The most efficient heat pumps have an HSPF of between 8 and 10. The Seasonal Energy Efficiency Ratio (SEER) rates a heat pump's cooling efficiency. In general, the higher the SEER, the higher the cost.
However, the energy savings can return the higher initial investment several times during the heat pump's life. The most efficient heat pumps have SEERs of between 14 and 18.
• Select a heat pump with a demand-defrost control. This will minimize the defrost cycles, thereby reducing supplementary and heat pump energy use. • If you're adding a heat pump to an electric furnace, the heat pump coil should usually be placed on the cold (upstream) side of the furnace for greatest efficiency
. • Fans and compressors make noise. Locate the outdoor unit away from windows and adjacent buildings, and select a heat pump with an outdoor sound rating of 7.6 bels or lower. You can also reduce this noise by mounting the unit on a noise-absorbing base.
• The location of the outdoor unit may affect its efficiency. Outdoor units should be protected from high winds, which can cause defrosting problems. You can strategically place a bush or a fence upwind of the coils to block the unit from high winds.
About the Author
John Mahoney is a freelance author who writes about various technology
realated subjects. For more information about John visit his website
www.techstore.ie.