Geoff Griffiths Heating & Plumbing

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Air Source Heat Pumps

An air source heat pumps absorbs heat from the outside air. This heat can then be used to warm water for radiators or underfloor heating systems, or to warm or cool the air in your home.

How do air source heat pumps work?

An air source heat pump extracts heat from the outside air in the same way that a fridge extracts heat from its inside. It can extract heat from the air even when the outside temperature is as low as minus 10C.

There are two main types:

An air-to-water system

An air-to-water system uses the heat to warm water. Heat pumps heat water to a lower temperature than a standard boiler system would, so they are more suitable for underfloor heating systems than radiator systems.

An air-to-air system

An air-to-air system produces warm or cool air which is circulated by fans or inverters to heat or cool your home. The efficiency of air source heat pump systems is measured by a coefficient of performance (CoP) - the amount of heat they produce compared to the amount of electricity needed to run them. A typical CoP for an air source heat pump is around 3.1 to 5.1 depending on external air temperatures.

The benefits of air source heat pumps

Reduce your fuel bills:

Air source heat pumps run on electricity, so there's no need to pay for gas, oil or solid fuels to heat your home.

Cut down on wasted electricity:

Heating your home with an air source heat pump is much more efficient than using electric radiators.

Save space:

An air source heat pump system is compact, and requires no storage space for fuel.

Is an air source heat pump suitable for my home?

To tell if an air source heat pump is right for you, there are a few key questions to consider:

Do you have somewhere to put it?

You'll need a place outside your house where a unit can be fitted to a wall or placed on the ground. It will need plenty of space around it to get a good flow of air.

Is your home well insulated?

Since air source heat pumps produce less heat than traditional boilers, it's essential that your home is insulated and draught proofed well for the heating system to be effective.

What fuel will you be replacing?

The system will pay for itself much more quickly if it's replacing an electricity, Liquid Petroleum Gas (LPG) or coal heating system than a gas or oil one.

What type of heating system do you want?

Air source heat pumps are much better at powering underfloor heating systems or warm air heating than radiator-based systems.

Is the system intended for a new development?

Combining the installation with other building work can reduce the cost of installing the system

  • "My boiler had broken and I had no hot water or heating. Geoff Griffiths came and fixed it for me within the same day. Excellent service and will recommend to all of my friends."

  • "Brilliant, top quality service! Have told all my family and friends about Geoff Griffiths."

  • "It was a Bank Holiday and our boiler broke, we had no heating. No one else would answer or come out, until we got in touch with Geoff Griffiths. Thank you ever so much."

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