Heat pumps - the future of pool heating

How does a swimming pool heat pump work?

A pool water heat pump operates by extracting heat from the outside air and transfers it to the pool water using extremely reliable and very energy efficient technology. A heat pump ensures that the swimming pool is heated to the optimum temperature and maintains this hear throughout the swimming pool use. The key to ensuring this temperature is consistent is to ensure the correct size of heat pump is selected and that it is professionally installed.

What are the main differences between a traditional heat pump and the Heatinverter (link)?

• The heatinverter has the ability to continuously regulate its own thermal power flow 
  
• The heatinverter can offer an added 15% – 20% efficiency when compared to conventional technology
  
•  A traditional heat pump either works at maximum capability or is switched off as the compressor's speed cannot be varied. 
  
•  A traditional heat pump will use a thermostat to measure the ambient air temperature and switch the compressor on when the water temperature is too far from the required temperature
  

The Heatinverter uses a rectifier to convert the incoming AC current to DC and then uses pulse-width modulation of the DC current within an inverter (electrical) to produce AC current of a desired frequency.
The speed of a brushless motor is synchronised to the frequency of the AC current it is thus possible for the Heatinverter compressor to be run at different speeds.
The Heatinverter uses a microcontroller then samples the ambient air temperature and adjusts the speed of the compressor appropriately.

For more information about heat pumps or swimming pool heating, please contact Paul Webb at Fairlocks.