Air Source Heat Pumps in Cornwall – renewable heating solutions

Air source heat pumps use heat energy stored in the air to provide 100% of a property’s heating demand.

Air source heat pumps replace heating demand from fossil fuels with provision with free heat generated from the air. As a result, customers switching to air source significantly reduce their heating bills and carbon footprint. In addition, incentive from the government means air source solutions often repay themselves.

Air source heat pumps provide numerous further benefits.

How do Air Source Heat Pumps work?

Air source heat pumps convert heat energy stored in the air surrounding a property into usable energy for space heating and hot water provision.

An air source unit extracts air containing residual heat. From here, the pump mixes the energy with a refrigerant gas and compresses it. This results in an upgrade in the degree of heat. The pump then diverts this upgraded heat to space heating and hot water systems via heat exchangers.

This process makes air source very efficient. Air source units output over three times the energy than they require to run and therefore generates significant savings.

Furthermore, air source heat pumps operate at lower flow temperatures than traditional heating methods. Reducing flow temperature helps to decrease running costs by reducing demand on the heating system. However, it may mean heat emitters need upsizing. Air source heat pumps are capable of reaching temperatures of 55° for hot water, 45° for radiator systems and 35° flow temperature for underfloor heating.

Air source heat pumps generate heat at temperatures as low as -20°.

The advantages of Air Source Heat Pumps

Customers installing an air source heat pump  experience the following benefits:

Energy Savings

Replacing demand from costly fossil fuels with free energy from the air provides a significant saving on energy bills. Customers currently heating with oil, LPG or direct electric can save as much as 50% on their bills.

The extent of these savings will depend on the efficiency output of the system installed. Size and type of heat emitters will also impact efficiency.

The Renewable Heat Incentive

Air source heat pump installations are eligible for incentive via the Renewable Heat Incentive scheme.

The government initiated the Renewable Heat Incentive to encourage uptake of renewable heating solutions. The scheme pays customers who have installed an eligible renewable technology for the renewable heat generated by their installation.

The Renewable Heat Incentive pays domestic customers for seven years and commercial customers for 20 years. Rates of pay users receive vary depending on the type and efficiency of the system installed, energy efficiency of the building and the date of registration.

Only MCS registered technologies installed by MCS accredited installers are eligible for RHI payments. Other conditions apply. Our Renewable Incentives page has more information on the Renewable Heat Incentive.

Carbon Savings

Anybody replacing heat demand from fossil fuels with an air source alternative will substantially reduce their carbon output. Air source heat pumps can reduce a home or business’ carbon emissions by as much as 50%.

Reduced carbon emissions can be particularly important for customers with new build projects that have SAP and Building Regulation concerns.

Additional benefits of Air Source Heat Pumps

Enhanced Living Comfort

Homes benefitting from an air source heat pump should never be too hot or too cold.

Air source units emit heat at low temperatures over longer periods of time. This helps to keep the temperature inside a building constant. The result is a property that’s never too hot or too cold but is to the customer’s comfort.

This style of heating also helps with damp issues in older homes.

Simple Installation

Air source heat pumps consist of a single external unit connected to a hot water cylinder and central heating system. This makes installations quick and straightforward with minimal disruption. Furthermore, customers are able to free up space inside their home.

Air source heat pumps require no gas connection, groundworks or fuel store.

Reduced Vat Rates

Domestic air source heat pumps are subject to reduced VAT rates of 5%. Commercial installation are VAT free.

Quiet Mark Approved

One key concern for anybody considering an air source alternative is their noise output. GreenGenUK only installs Quiet Mark Approved heat pumps to ensure the highest comfort for our customers.

The Mitsubishi Ecodan

The Mitsubishi Ecodan is the market leading air source heat pump solution, providing unrivaled efficiency outputs, noise levels, warranty and aftercare.

The Ecodan is the result of Mitsubishi’s product development and because of GreenGenUK’s Business Solutions Partner status we are able to offer additional benefits to our customers. We can offer extended warranty and reduced prices. Our experience of undertaking Ecodan installations ensures the highest quality installations.

Further data on the Mitsubishi Ecodan range can be found by on our Mitsubishi Ecodan page.

Combining Air Source with Solar PV

Air source heat pumps are highly compatible with solar PV installations because they can run off the excess electricity from a solar array.

Generally, customers consume around 60% of their solar generation. By using this energy to run an air source heat pump, customers effectively generate free space heating and hot water. This results in further reductions to electricity bills and increased savings.

Customers benefitting from solar and a heat pump still receive the same Feed-in Tariff generation payments, still receive the same deemed Feed-in Tariff export, can still access the Renewable Heat Incentive scheme but increase the energy savings of both systems.

Your Installation

GreenGenUK offer free surveys and proposals to all customer within Cornwall and the South West who are considering switching to a renewable solution.

It’s our aim to provide clients with all the information they need to make an informed decision on their project. The first step in this process is to survey the property. Surveying the property allows us to accurately, precisely and confidently specify heating systems to our customers that meet their needs and the needs of their properties.

In the case of new builds, we can undertake our calculations from a copy of building drawings.

To start your journey into renewable energy and see how GreenGenUK can help you, contact us today.

Air Source Heat Pump Case Studies and Examples

We have a host of previous installations throughout the South West. To see some examples of our work and installations that could be similar to yours, head over to our Renewable Case Studies.


Have a question on air source heat pumps not answered on this page? Visit our ‘Air Source Heat Pump FAQs‘ page to see some of the most common questions customers have on air source heat pumps.