How Efficient Is An Air Source Heat Pump, And How Do They Work?

Air heat pump standing outdoors. Modern, environmentally friendly heating

If you’re searching for a more affordable, eco-friendly way to heat your home, an air source heat pump (ASHP) may be the solution you need.

ASHPs are an innovative solution that uses natural energy to provide hot water and heating to your house.

The traditional heating methods we use in our homes are expensive and contribute heavily to carbon emissions.

In fact, an incredible 21% of the UK’s carbon emissions come from residential buildings, and most of this comes from heating and hot water. 

ASHPs are a game-changer because they tap into the energy freely available in the air around us. By using this renewable energy source, ASHPs offer an effective way to keep your home warm while reducing your carbon footprint and monthly heating bills.

In this blog, you’ll find everything you need to know about air source heat pumps. Discover what they are, how they work, and the energy efficiency levels they offer.

We’ll also explore common myths surrounding ASHPs and take a look at their impressive temperature capabilities.

What is an air source heat pump?

An air source heat pump is a heating and cooling system that extracts heat from the outside air and transfers it indoors to heat a space or to provide hot water.

By using eco-friendly technology, ASHPs ensure a comfortable indoor environment and contribute to sustainable living.

How do air source heat pumps work?

ASHPs harness the power of the outdoors to provide comfortable indoor temperatures and warm water for your home. 

The system begins by drawing in outside air over a network of tubes filled with refrigerant, which extracts heat energy from the air.

With the change in temperature, the refrigerant then changes state from a liquid state to a gas and is compressed by a powerful compressor, increasing its pressure and temperature. 

This hot refrigerant gas then passes through a heat exchanger, which transfers the heat energy to the water that flows through your radiators and taps, providing warmth and hot water for your daily needs.

After the heat has been transferred, the refrigerant cools down, transforming back to its original state and starting the process over again, and the cycle starts anew.

Common myths about air source heat pumps

Don’t let misconceptions about ASHPs lead you astray. Let’s debunk some common myths about these eco-friendly heating systems. 

They don’t work in cold weather

ASHPs can efficiently heat homes in various climates, including colder regions. Modern heat pumps are designed to work efficiently even in temperatures below freezing.

They’re only useful for heating

ASHPs are versatile systems that can both heat and cool your home. They have a reversible cycle, allowing them to offer efficient cooling in summer and heating in winter.

They’re expensive 

Although the upfront cost of installing an air source heat pump can be higher than traditional heating and cooling systems, they’re more energy-efficient, resulting in long-term savings on energy bills. 

Additionally, incentives, rebates, or tax credits may be available to help offset the initial installation costs.

They require frequent maintenance

ASHPs require regular maintenance to ensure optimal performance like any other HVAC system. 

However, they don’t require excessive or more frequent maintenance than other heating and cooling systems.

They look bad

ASHPs have undergone significant aesthetic improvements over the years. Modern heat pump models are designed with sleek and stylish appearances, with options available to blend seamlessly into the exterior of your home.

How efficient are air source heat pumps?

Air source heat pumps are incredibly efficient. In fact, these systems can achieve efficiencies of over 300% because they transfer heat instead of creating it. 

This means that, on average, your ASHP will produce three units of heat energy for every unit of electricity it consumes.

To give you some context, the average UK home typically uses around 12,000 kWh yearly for heating. You only need about 4,000 kWh to provide the same heat with an air source heat pump.

Choosing air source heat pump installation for your heating needs is not only environmentally friendly but is also a much more cost-effective solution when compared to a traditional central heating system.

What temperatures can air source heat pumps reach?

In the UK, ASHPs are designed to operate efficiently in outdoor temperatures as low as -15 to -20 degrees Celsius. This means they can effectively provide heat even during harsh winters.

ASHPs are created to heat and cool homes within a specific temperature range. The exact temperature range can vary depending on the model and specific conditions. 

But typically ASHPs are effective in maintaining indoor temperatures between 20°C and 27°C via radiators and or an underfloor heating system.

When it comes to water heating, ASHPs can provide hot water at temperatures suitable for various household needs. The heat pump system raises the water temperature to the desired level, typically 50°C to 55°C.

This temperature range is ideal for showering, washing dishes, and other domestic hot water requirements.

Are air source heat pumps noisy?

One common concern associated with air source heat pumps is noise.

While older heat pump models may have had noise issues, manufacturers have made significant advancements in technology to address this concern. 

Modern heat pump models are designed to operate quietly and provide a comfortable indoor environment without causing disruptive noise.

They achieve this by incorporating improved compressor and fan designs, sound insulation, and variable speed motors to minimise noise levels during operation.

That being said, the specific noise level of a heat pump can vary depending on factors such as the model, installation, and surrounding environment. It’s always recommended to consult with a professional installer who can guide you on the appropriate heat pump model for you. 

As we know, air source heat pumps are an eco-friendly and efficient solution for heating your home. 

By harnessing the natural energy from the air, they provide an environmentally conscious alternative to traditional heating methods. With their ability to heat and cool homes efficiently, air source heat pumps offer a versatile solution.

Discover Edinburgh Gas Renewables!

Ready to experience the benefits of an air source heat pump for your home? At Edinburgh Gas Renewables, we can help you take the first step towards a more efficient and sustainable heating system.

Our professionals will guide you through the process, from selecting the right ASHP system for your needs to ensuring a seamless installation. 

We also take pride in providing exceptional gas boiler services. Whether you need a professional installation or your current boiler requires servicing, our team is here to assist you.

Say goodbye to high energy bills and environmental impact, and embrace the future of home heating. 

Get in touch with us now to schedule a consultation.

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