| |
Ground Source Heat Pumps
Air Source Heat Pumps
Ground Source Heat Pumps:
- Can produce 4 or 5 KW of useful heat from 1 KW of electricity
- Suited best to low temperature delivery systems, i.e. under floor heating
- Can extract heat from the ground by using any of the following: horizontal ground collector, vertical slinky, ground probes, borehole pump or a collector loop in a lake.
- Needs no chimney and therefore can be placed anywhere within a building, or externally within an outbuilding
- Typical life expectancy of heat pumps is 20 years and most require little to no maintenance
A consultation is underway for a new scheme, entitled the Renewable Heat Incentive scheme. For more details click here. It is currently proposed that the incentive will be worth 7p/kWh.
Cost |
From £11,000 |
Grant |
£1,200 |
Return on Investment |
On economy 7 ground source heat pumps cost approx 1.25p/KWh as opposed to oil fired heating that typically costs 5.5p/KWh (assuming oil cost of 40p/ltr and a boiler efficiency of 75%.) |
Ground Collector Manifold
|
Laying Pipe in a Trench
|
Lake Collector ready for installation
|
Installing the Pipe for Lake Collector
|
Air Source Heat Pumps:
- Can produce 3KW of useful heat for every KW of electricity
- Extract heat from the outside air
- Least efficient when the outside air temperature drops.
- Can be located internally and ducted to outside walls, or externally in the garden.
- Heat can be transferred to the house by a wet heating system or directly to the air.
It is currently proposed that the incentive under the new RHI scheme would be worth 7.5p/kWh.
| Cost |
From £8,000 |
Grant |
£900 |
Return on Investment |
On economy 7 an air source heat pump costs approx 1.75p/KWh as opposed to oil that costs 5.5p/KWh assuming oil cost of 40p/ltr and a boiler efficiency of 75%. |
Back to Top |
