What are air source heat pumps?

Air source heat pumps work by absorbing heat from the air outside and pushing that through your home via your heating system and hot water. 

This renewable heating solution can extract heat from the air even when temperatures drop
as low as -15°C.

A renewable heating solution

Although they require electricity to function, air source heat pumps are considered a renewable heating solution. This is a result of their ability to pull renewable heat energy from the environment outside of the home. 

As a result of this process, the heat output of these air source heat pumps outweighs the electricity input that they require to function. Therefore, they are an energy-efficient solution for heating your home.

Air source heat pumps
Air source heat pumps

How it works

If you think air source heat pumps may be an appropriate renewable heating solution for your home, toasti is here to help you get set up.


Want to learn more about installing air source heat pumps? Speak to one of our helpful team members who will outline the benefits of this renewable heating solution whilst answering any and all questions that you may have. 

Our team will also be available to advise of whether this solution is suitable for your home.

How it Works - Enquire


If, after your initial consultation with our team, you decide that air source heat pumps are the best fit for your needs, it’s time to book an appointment with one of our expert engineers. 

They’ll be able to get into the particular details of the process for you, and will also be able to quote you for the price of the installation.

How it Works - Book


After meeting with one of our team, your installation will be arranged. 

An expert toasti engineer will attend your property to ensure your renewable heating solution is installed with the utmost care and attention. 

Once installed, you can start taking advantage of lower energy bills and the long life span associated with air source heat pumps. 

How it Works - Installation
Family on a sofa

Still have questions?

At toasti, we are experts in home heating. This is why we can offer tailored, specialist advice on how to heat your home the renewable way with air source heat pumps. 

To find out more about our range of air source heat pumps available and to get a free, no-obligation quote, speak to one of our helpful team. We are on hand to answer any questions you may have and can advise you on the best solution for your home.


Find the answers to the most common air source heat pump questions here.

Your air source heat pump absorbs warm air from outside of the home before converting it into energy to heat your home. Air from outside is blown over a selection of tubes that are filled with a refrigerant. 

The heat from this air warms the refrigerant solution, creating gas which increases the pressure within the attached compressor. As a result, the air or water in your home is heated.

Whilst it’s possible to set up an air source heat pump yourself, it’s best to enlist the help of a professional engineer for installation. This system will be responsible for the heat in your home, so you want it to be set up correctly. 

Our toasti engineers are boiler and heating services experts, so they’ll ensure your air source heat pump is up and running as soon as possible.

Air source heat pumps require electricity to work, but the actual heating process is not directly powered by electricity. Whilst electricity is used to move the heat to the correct place, the actual heat power is provided from the air outside of the home.

It’s important to remember that every heating solution makes some form of noise. We’ve all heard our boilers spring to life when we’re ready to fall asleep. 

However, air source heat pumps are typically quieter than boiler services that run using fossil fuels. Excessive noise is usually the result of poor installation, which is why it’s essential that you consult an expert during installation. 

In order to access the air from outside of the home to power the system, this renewable heating solution typically needs to be installed outside of your house. 

Where possible, these systems are installed on the floor for ease of access, but it is possible to install them using brackets where necessary. Air source heat pumps are typically located near utility systems.

Get a quote

If you’re looking for a quote regarding installing an air source heat pump in your home, get in touch with toasti today and we’ll send a free quote over to you in no time.