A Guide to Air Source Heat Pump Efficiency Through the Seasons
At Warmaway, we’re passionate about helping homeowners in Yorkshire and beyond enjoy the benefits of modern, efficient heating systems. Whether you’ve already got an air source heat pump (ASHP) installed or you’re considering making the switch, understanding how your ASHP performs across the seasons is crucial. In this guide, we’ll break down what you can expect from your heat pump in summer and winter, addressing some of the common concerns and providing expert tips for maximising efficiency throughout the year.
How Do Air Source Heat Pumps Work?
Air source heat pumps are clever pieces of technology that extract heat from the air outside, even when it’s cold, and use it to warm your home and water. Essentially, they work in a similar way to your fridge, but in reverse. ASHPs are highly efficient and reliable systems, making them a popular choice for homeowners seeking a sustainable alternative to traditional heating.
In the winter, they draw heat from the outside air, even in freezing conditions, and transfer it inside to keep your home cosy.
In the summer, when the demand for heating drops, your heat pump can be set to standby or only used for domestic hot water.
But how does their performance change with the seasons? Let’s explore.
ASHP Efficiency in Summer
During the warmer months, your air source heat pump won’t be needed for heating your home as much. Instead, it may simply focus on supplying hot water, or you might have it switched off entirely.
Here’s what you need to know:
Low Energy Demand
During summer, because there’s little or no heating required, your ASHP will naturally use less energy. Most systems will continue to efficiently provide hot water for your household needs without any fuss.
Maintenance Check
Summer is the ideal time to schedule an annual service or maintenance check with our expert engineers. This will ensure your heat pump is clean, optimised, and ready for the upcoming colder months when it will be working harder.
Protect the Unit
While your ASHP may not be in heavy use during the warmer months, it’s important to keep the outdoor unit clear of any debris or blockages to ensure optimal airflow and performance when winter returns.
ASHP Efficiency in Winter
Now, this is the season where air source heat pumps truly shine, though it’s also when most people have concerns. It’s understandable to wonder how an ASHP can pull warmth from freezing air, but thanks to advances in heat pump technology, they can perform efficiently even in sub-zero temperatures.
They Work in the Cold
Modern ASHPs are designed to extract heat from the air even when outdoor temperatures are as low as -20°C. While their efficiency does decrease slightly as temperatures drop, they will still generate more heat energy than the electricity they consume. This makes them far more efficient than electric heaters and even traditional gas boilers.
Lower Output, Higher Efficiency
During the winter, ASHPs operate at a lower output to maintain efficiency, so the key is gradual heating. Instead of blasting heat like a conventional system, they provide a steady stream of warmth over time, which is gentler on your system and more energy efficient.
Complementing with Insulation
To get the best performance from your ASHP during winter, proper insulation is vital. As with any heating system, if your home isn’t well insulated, the system will have to work harder to maintain the desired temperature. We often recommend homeowners enhance their insulation or install underfloor heating to maximise heat retention.
What to Expect in Winter: Common Concerns
Concern: Will My ASHP Provide Enough Heat in Winter?
Absolutely! However, it’s important to note that the system works differently from traditional boilers. Rather than firing up to maximum heat output, ASHPs work gradually to maintain a consistent temperature. It may take slightly longer to reach the desired warmth, but the trade off is lower energy consumption and more stable, long term comfort.
Concern: Will My Energy Bills Rise in Winter?
While energy consumption may increase slightly due to the longer runtime in cold weather, ASHPs are still far more cost effective than traditional heating methods. Plus, when paired with a well insulated home, you can expect to see significant savings on your bills compared to traditional systems.
Homeowner Tips for Every Season
Summer Tip: Use the summer months to inspect your heat pump. Clear any debris from around the external unit, and ensure proper airflow. Regular servicing is key to keeping your system running efficiently.
Winter Tip: Avoid setting the thermostat too high initially. Instead, maintain a steady, moderate temperature. This allows your ASHP to work efficiently without overburdening the system.
Year Round: Consider integrating smart controls or a home energy management system. These will allow you to monitor your ASHP’s performance and make real time adjustments, ensuring your system runs as efficiently as possible no matter the weather outside.
Why Choose Warmaway for Your ASHP Installation and Service?
With over 20 years of experience in heat pumps and decades of providing heating solutions across Yorkshire and beyond, Warmaway is your local heat pump expert. We offer tailored advice, professional installation, and ongoing support to ensure that your home stays comfortable and energy efficient year round. Whether you’re looking to install an ASHP or you need guidance on getting the most out of your current system, our friendly team is here to help.
Feel free to reach out to us for a no-obligation consultation. We’re happy to answer any questions and guide you on your journey to a more sustainable, cost effective heating solution.
