Debunking Common Heat Pump Myths: What You Need to Know June 10, 2025 Heat pumps often come with misconceptions that prevent homeowners from recognising their true value. From efficiency in cold weather to installation viability in older homes, these misunderstandings can lead to hesitation or poor decisions. This blog breaks down the most common heat pump myths and explains why modern systems are suitable for a wide range of homes and climates. Understanding the Truth About Heat Pumps They Provide Both Heating and Cooling Heat pumps are not just for winter. In fact, they serve as year-round climate control systems. In winter, they extract heat from outside air and transfer it indoors. In summer, the cycle reverses, moving heat out of your home to keep it cool. This makes them a dual-purpose solution, capable of replacing both boilers and air conditioners. Cold Weather Doesn’t Stop Them Modern heat pumps are equipped with advanced compressors and defrosting technology, allowing them to operate efficiently in sub-zero temperatures. Many systems work well even when temperatures fall below -20°C. While they may use more energy during severe cold, they remain a viable and efficient option for most UK winters. Backup Heating Is Not Always Necessary A common belief is that heat pumps need a secondary heating source. However, if the system is correctly sized for your home, a backup is rarely needed. Professional installers will carry out detailed heat loss calculations to ensure the pump can meet all heating and cooling demands, even in retrofit scenarios. Efficient Beyond Mild Weather Although efficiency can dip in extreme cold, heat pumps generally outperform conventional systems across the year. Switching to other heating methods for brief cold spells usually adds unnecessary complexity with limited savings. Most modern systems are designed for consistent year-round use. Not Just for New or Superinsulated Homes Well-designed heat pump systems can be installed in virtually any property. While insulation boosts overall efficiency, it’s not essential. Installers can account for insulation levels, air leakage, and the building’s age to tailor a system that delivers effective heating and cooling. Heat Quality Matches Traditional Systems There’s a misconception that heat pumps can’t heat as effectively as furnaces. In truth, while the method of heat delivery differs (transfer vs combustion), the outcome is the same. Heat pumps offer steady, comfortable warmth and even distribution throughout the home. They’re Extremely Energy Efficient Heat pumps are among the most efficient systems on the market. With a Coefficient of Performance (COP) as high as 4.0, they can generate four times the heating or cooling energy for every unit of electricity used. This far exceeds the efficiency of even top-tier gas boilers. Cost Is Offset by Long-Term Savings Upfront costs can be higher, but the long-term savings often outweigh the initial investment. Lower running costs, paired with government incentives like the UK’s Boiler Upgrade Scheme, make them financially viable. This scheme, for example, offers £5,000 towards air source heat pump installation, making it more accessible than many assume. Looking for year-round peace of mind with your heat pump system in Liverpool, Warrington, Widnes or St Helens? 21Degree Heating provides expert installation, tailored design, and support to help you get the most from your heat pump. Call us on 07758668234 or 07423397737, or fill out our contact form to arrange a consultation today.
