Will an Air Source Heat Pump Provide All of My Heating and Hot Water Needs?

An air source heat pump (ASHP) could be a good option  if you’re exploring ways to have an energy-efficient heating system that delivers consistent performance all year-round. Air source heat pump systems utilise the heat from the ambient air to provide consistent and reliable warmth throughout your home, ensuring your heating needs are always met year-round. 

The question we’re sure you really want answered, however, is “can an air source heat pump provide all of my heating and hot water needs?”

Benefits of Air Source Heat Pumps

Air source heat pumps are both energy-efficient and can offer significant energy savings compared to traditional heating systems. By providing an eco-friendly way to heat water and meet your heating needs, air source heat pumps may prove to be wider options as part of the UK’s transition to a low-carbon heating future.

Changes in regulations which came into effect in May 2025 now mean that ASHPs are accessible to a broader range of households. For example, with the need for planning permission largely removed and units permitted to be installed anywhere up to the property line, ASHPs can be in place at various property types, so if you’re looking into having one at your property, the process may be more straightforward than you first thought.

An ASHP is designed to provide a consistent level of heating comfort. By working with other technologies and home insulation improvements, an ASHP can be a good  solution for efficient heating and hot water. The low maintenance requirements can also help to keep costs as low as possible.

Understanding Air Source Heat Pump Efficiency

Air source heat pumps extract heat from the ambient air to deliver constant warmth for your home. Much like the process that keeps your fridge cool but in reverse, the heat that is drawn in by the ASHP is absorbed by a refrigerant, and a compressor heats the gas that is created. The heat produced is then transferred around your home using a compressor. 

Modern ASHPs can work even in low temperatures where there is less heat in the air for them to draw upon. They are also more efficient than older systems, three to four times more efficient in some cases, and as they use a renewable energy source, you have the benefit of reducing your carbon emissions and your bills at the same time. 

When combined with other energy efficient measures and quality insulation, an air source pump can lead to a constant level of comfort and heating performance for most property types. 

Heating and Hot Water Capabilities

It’s important to note that an air source heat pump needs to work with a compatible cylinder in order to meet heating and hot water needs. 

The gas produced during the process of the ASHP extracting heat from the ambient air for use in your heating system is transferred to an internal heat exchanger within the hot water cylinder. The water is stored ready for use, ensuing that you have a constant and consistent supply of water, heated using a renewable source.

Choosing the Right System for Your Home

To decide if an air source heat pump is the right solution for your home, consider your property’s specific requirements. Key elements such as insulation, size, and the number of occupants. You’ll also need to consider your typical energy and hot water usage, as this will influence the size of air source heat pump you’ll need and the hot water cylinder to go with it.

An air source heat pump is situated outside your property, either mounted on an exterior wall or positioned on a sturdy flat surface. This position is important as your ASHP will need to be accessible for maintenance checks and has an unobstructed airflow, without causing a hazard to other household members. 

To ensure maximum efficiency and effectiveness of an air source heat pump, check that you have quality insulation fitted and that any gaps around windows and doors are sealed. If your property is restricted on space, you may want to consider a pre-plumbed hot water cylinder for your ASHP, as this type of cylinder doesn’t have a header tank, perfect for tight spaces, and also makes for a smoother installation process.

Air Source Heat Pump Installation

Professional installation is key to ensuring that your system operates at peak efficiency. An expert assessment will help determine the right model and configuration to meet your heating needs, providing peace of mind and long-term energy savings.

Various grants and incentives may be available to help offset installation costs. One in particular is the Boiler Upgrade Scheme, which provides cash grants towards the cost of an air source heat pump depending on eligibility. 

There are some instances where additional regulations need to be followed for an air source heat pump installation. For example, if your property is a listed building or within a conservation zone, you may need to have additional permission from a local authority. 

Choose Baxi for an Air Source Heat Pump Installation

Learn more about our full range of air source heat pumps here.