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Why Homeowners Are Switching to Air Source Heat Pumps
Air source heat pumps are an increasingly popular choice for homeowners looking to reduce reliance on traditional heating systems and improve long-term energy efficiency.
Puraflow Renewables provides air source heat pump installation for UK homes, beginning with a property assessment to understand heating requirements, system suitability and the wider work needed for an effective installation.
From the initial home survey through to installation and system setup, our team provides clear guidance on heat pump performance, hot water, radiators, running costs and available grant support.
What Is an Air Source Heat Pump – And How Does It Work?
If you’re new to the idea of air source heat pumps, don’t worry—you’re not alone. Let’s break it down in plain English.
An air source heat pump is a low-carbon heating system that pulls warmth from the air outside—even on cold days—and uses it to heat your home and water. Yes, really. It works a bit like a fridge in reverse. Instead of keeping things cold, it makes things warm.
Here’s how it works:
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It draws in outside air
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Extracts the heat using a special refrigerant
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Compresses that heat to raise the temperature
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Then transfers it into your home to warm radiators, underfloor heating, and your hot water cylinder
It’s a reliable system that works all year round—even when temperatures drop below freezing.
The best part? Once it’s installed, you don’t have to do a thing. It just runs quietly in the background, keeping your home cosy while helping to reduce your carbon footprint and energy bills. No more relying on expensive gas. No more surprises when the heating breaks down mid-winter.
Whether you're replacing your old boiler, renovating, or planning a new build, installing an air source heat pump is a smart move—for your wallet, your comfort, and the planet. We’ll help you choose the right system and take care of the full installation from start to finish.
How loud is a heat pump?
Modern air source heat pumps are designed to run quietly and are generally comparable to everyday household appliances. Noise levels vary by model, installation position and how hard the system is working, which is why correct unit placement matters.
During installation, we consider the location of the outdoor unit carefully to reduce unnecessary disturbance and help the system operate efficiently.
How will you heat the rooms in your home?
Most homes use radiators or underfloor heating with an air source heat pump. Because heat pumps usually operate at lower flow temperatures than traditional boilers, the size and output of your existing radiators may need to be checked.
During the survey, we assess your current heating system, room-by-room heat demand and emitter sizing to determine whether your existing radiators can stay or whether any upgrades are recommended.
Do you have a hot water cylinder?
Most air source heat pump systems use a hot water cylinder to store the hot water needed for showers, baths and taps. Unlike a combi boiler, a heat pump does not usually produce hot water instantly on demand.
If your home already has a suitable cylinder, we will assess whether it can be retained. If not, we can recommend the correct cylinder size and setup as part of the system design.
You can read more about how this works in our guide to air source heat pumps and hot water cylinders.
Will a heat pump save me money on my energy bill?
A heat pump can reduce your reliance on fossil fuels, but the effect on your energy bills depends on your current heating system, electricity tariff, property efficiency and how well the new system is designed.
The biggest gains come from correctly sizing the heat pump, keeping flow temperatures as low as practical and making sure the property can retain heat effectively. We assess these factors before recommending a system rather than relying on generic savings estimates.
For a wider look at what the process involves, read our air source heat pump installation guide.
AM I ELIGIBLE?
Looking to make your home more energy efficient with an Air Source Heat Pump? Let our expert team at Puraflow Renewables guide you through the process and help you check your eligibility for financial assistance.
Want to understand the current funding available? Read our guide to the Boiler Upgrade Scheme and heat pump grants in 2026.
Home Renewable Solutions
Our Air Source Heat Pumps are compatible and work hand in hand with other renewable energy solutions. See our other products and services below that will help to make your home even more energy efficient.
