Review: The Five Best Air Source Heat Pumps

I remember the first time I ever saw a heat pump, it was at a friend’s house, around 5 or 6 years ago. I was intrigued at how this contraption was able to heat a home and more importantly how energy efficient it was. I quickly found out that there were two types of heat source pumps.


Ground Source Heat Pumps:
Ground source heat pumps use pipes which are buried in the garden to extract heat from the ground. (Image: Bayfield Energy)

Air Source Heat Pumps

Air source heat pumps work by taking air from outside your home and heating it through a refrigerant circuit. From here the pump produces hot air into your house which will heat water, radiators, underfloor heating and heating systems. (Image: Green Energy)

For me, the two main beneficial aspects of investing in ground or heat source pumps is that they are energy efficient and reduce the cost of your energy bills!

In a blog post from Find Energy Savings, they have reviewed the Top 5 air source heat pumps:

Baxi Ambiflo
	7.5kW, 9.0kW and 10.5kW available
	Compact and lightweight and includes accessories like a heat pump, an electric heater, room thermostat, outdoor senor and connection hoses.
	Low noise and perfect for the average home.
From around £4,500

Ecodan by Mitsubishi Electric
	5kW to 14kW source to water pump
	Low noise and lightweight
	Offers output temperatures of 45-60 degrees Celsius
	Will run successfully at a range of temperatures from -15 to 35 degrees Celsius.
	Could reduce CO2 emissions by 50% and reduce household heating costs by half.
Around £2,500 to £7,500 plus VAT and installation by a Mitsubishi installer is compulsory.

Delonghi I-NRG
	Output of around 16.3kW
	Can be used internally or externally and is completely flexible. This pump can produce heating, cooling and domestic hot water.
	60 degree Celsius output for heating and hot water
	Low noise
	Ducting kit available for use inside
	100% heat recovery with heating and cooling twin circuits
	Will operate at down to -10 degrees Celsius
Price varies

Delonghi AW HT
	From 10 – 27 kW output
	Output temperature of 65 degrees Celsius from an outside temperature of up to -12 degrees Celsius. Will still provide heat at -20 degrees Celsius.
	Domestic hot water and heating functions
	Low noise
	Built in circulation pump
Price varies

Airconwarehouse Budget Air Source Heat Pump
	Non branded therefore cheaper
	8.3kW ouput at 20 degrees Celsius ambient temperature and 5kW output when the temperature is 2 degrees Celsius.
	Cheaper because they have a lower output
	Noise levels unknown, but great for a cheap introduction to air source heating where there is a low fluctuation in outside temperatures.
£1000 plus VAT