Air source heating systems (ASHPs) are becoming an increasingly popular choice for homeowners across the UK. Known for their energy efficiency, eco-friendliness, and cost-saving potential, they offer an appealing alternative to traditional heating systems. However, despite their many advantages, several myths continue to cloud the understanding of this innovative technology. At Custom Renewables, we want to clear up these misconceptions and help our customers discover the real benefits of air source heating.
Myth 1: Air Source Heating Doesn’t Work in Cold Climates
Fact: One of the biggest misconceptions about air source heating is that it’s ineffective in cold weather. However, modern ASHPs are designed to operate efficiently even in freezing conditions. Thanks to advancements in technology and specially designed refrigerants, air source heat pumps can extract heat from the air even when temperatures drop as low as -25°C.
Although their performance may slightly decrease in extreme cold, ASHPs still outperform traditional heating methods, such as electric heating, and can effectively keep your home warm during the colder months.
Myth 2: Air Source Heating is Expensive to Install and Maintain
Fact: While the initial installation cost of an air source heat pump can be higher than that of a conventional gas boiler, the long-term savings and government incentives often make the investment more affordable. In fact, many households find that the cost of installing an ASHP becomes comparable to that of a traditional system when factoring in energy savings and available grants.
Air source heat pumps are also low maintenance, requiring only an annual service. With their longer lifespan compared to traditional boilers, they provide lasting value and reduce the overall cost of home heating in the long run.
Myth 3: Air Source Heating Requires Major Modifications to Your Home
Fact: Many homeowners are concerned that installing an air source heat pump will involve significant disruption or costly home modifications. However, the installation process is relatively simple. At Custom Renewables, it is important to us minimise disruption to your home wherever possible. In most cases, the outdoor unit of the heat pump requires only a clear space with good airflow. The indoor unit can be integrated into your existing heating system with minimal adjustments to pipes and fittings.
Myth 4: Air Source Heating Systems are Noisy and Unsightly
Fact: Earlier models of air source heat pumps were often associated with noise, but this is no longer the case. Modern ASHPs operate at noise levels similar to a refrigerator, making them suitable for most residential environments. The outdoor units are compact and can be discreetly placed in your garden or on the exterior of your home.
Thanks to technological advancements, planning restrictions on air source heat pumps have been relaxed. In most cases, the noise level is no longer an issue. This means the outdoor unit can be installed closer to the boundary of your property without causing any noise disturbance.
Myth 5: Air Source Heating Isn’t as Reliable as Traditional Heating Systems
Fact: Air source heat pumps are reliable, robust systems built to perform year after year. With minimal maintenance and longer lifespans than traditional boilers, ASHPs are designed for longevity. Furthermore, because they operate using electricity rather than gas, they are not subject to the same risks of fuel shortages or leaks. This ensures consistent performance year-round.
If you are considering a Heat pump for your property and would like some further information, you can contact us here.

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