Air Source Heat Pump FAQ

FAQs About Air Source Heat Pumps


Welcome to our FAQ page on Air Source Heat Pumps (ASHPs). Here, we aim to address common questions and provide clear, helpful information about this efficient and eco-friendly heating and cooling solution.

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General Questions

What is an Air Source Heat Pump (ASHP)?

An ASHP system transfers heat from outside to inside a building, or vice versa, to provide heating or cooling. It works much like a refrigerator but in reverse.

How do Air Source Heat Pumps work?

ASHPs absorb heat from the outside air and increase their temperature using a heat pump. This heat is then transferred inside the building to provide heating and can also be used to heat water. In cooling mode, the process is reversed, extracting heat from inside the building and releasing it outside.

What are the types of Air Source Heat Pumps?

There are mainly two types: air-to-air systems, which provide heating or cooling directly to the indoor air, and air-to-water systems, which heat water used in radiators or underfloor heating systems.

Installation Queries

How is an ASHP installed?

Installation involves placing an external unit outside your building and connecting it to an internal unit. The complexity of installation varies depending on the type of ASHP and your existing heating system.

Do I need a specific type of home for an ASHP installation?

ASHPs are versatile and can be installed in various types of homes. However, homes with good insulation and airtightness benefit the most in terms of efficiency.

Can ASHPs be integrated with existing heating systems?

Yes, ASHPs can often be integrated with existing heating systems, but they may require some modifications for optimal efficiency and performance.

Cost and Efficiency

How cost-effective are ASHPs compared to traditional heating systems?

While the initial investment in an ASHP can be higher than that of traditional systems, they are generally more cost-effective in the long run due to lower operating costs and energy efficiency.

Are there any financial incentives or rebates for installing an ASHP?

Many regions offer incentives, rebates, or grants for installing renewable energy systems like ASHPs. It's best to check with local authorities or energy agencies for specific programs in your area.

How energy-efficient are ASHPs?

ASHPs are highly energy-efficient, often achieving 300% or more efficiency ratings, meaning they can produce three times more energy in heat than they consume in electricity.


Through the Boiler Upgrade Scheme, you could get a grant to cover part of the cost of replacing fossil fuel heating systems with a heat pump or biomass boiler.


Performance and Maintenance

What is the lifespan of an AS

The average lifespan of an ASHP is around 15 to 20 years, though this can vary based on the model and maintenance.

How much maintenance do ASHPs require?

ASHPs require minimal maintenance, such as annual checks and occasional cleaning of filters and outdoor units.

Can ASHPs provide both heating and cooling?

Yes, most ASHPs are designed to provide heating in the winter and cooling in the summer, making them a versatile choice for year-round comfort.

Environmental Impact

Are ASHPs environmentally friendly?

Yes, ASHPs are considered environmentally friendly as they use renewable energy (air) and operate efficiently, reducing overall carbon emissions.

Do ASHPs work in cold climates?

Modern ASHPs are effective even in colder climates. They are designed to extract heat from the air even at low temperatures, though their efficiency may decrease as the temperature drops.


Air Source Heat Pumps offer an efficient, cost-effective, and environmentally friendly solution for heating and cooling your home. If you have more specific questions or need advice tailored to your situation, please don't hesitate to contact us.