As sustainability becomes a priority for many homeowners, heat pumps are increasingly being considered by self- builders for their projects. Here at Allan Corfield Architects, we value energy efficiency and eco-friendly technologies.
In this article, Nathan from Ochsner shares his expertise with us about heat pumps and how they are becoming an increasingly popular choice for self-builders.
Ochsner are market leading specialists in the heat pump industry and we will explore the benefits and practicalities of integrating heat pumps into your home designs.
WHAT IS A HEAT PUMP AND HOW DOES IT WORK?
A heat pump is renewable heating technology that extracts heat from natural sources (air or the ground) and uses it to warm your home and provide hot water. Unlike traditional heating systems that generate heat by burning fuel, heat pumps transfer heat, making them a much more energy-efficient option.
Air Source Heat Pumps: These systems draw heat from the outdoor air. A refrigerant absorbs this heat and, through a process of compression, raises the temperature to a level suitable for heating water. This hot water is then used in radiators, underfloor heating, or domestic taps.
Ground Source Heat Pumps: These systems extract heat from the ground using a network of pipes buried either vertically in boreholes or horizontally about one meter below the surface. The ground’s stable temperature ensures reliable heating, even during colder months.
WHAT ARE THE KEY CONSIDERATIONS FOR HEAT PUMP INTEGRATION?
Smart Home Compatibility
Heat pumps can integrate into smart home systems, but unlike traditional boilers, (with an on/off program) they function most efficiently when running at lower temperatures over longer periods.
Advanced models often include built-in sensors and weather compensation features, which automatically adjust heating based on outdoor conditions, enhancing both efficiency and comfort.
HOW DO YOU CHOOSE THE CORRECT HEAT PUMP FOR YOUR HOME?
The range of heat pumps available today is vast, with systems suitable for everything from small homes to large commercial projects. Heat pumps can even provide high-temperature outputs, making them versatile for various heating demands.
For new-build projects designed to Passive House standards, heat pumps are an excellent fit. While Passive Houses require minimal heating due to their energy-efficient design, a properly sized heat pump can provide both the heating and hot water needed without being oversized, which could reduce efficiency.
You can find further information on passive house standards here.
WHAT ADVICE WOULD YOU GIVE ON HOW TO PLAN FOR HEAT PUMP INSTALLATION?
For a successful heat pump installation, early planning is essential. Here’s what you need to know:
New Builds: Incorporating a heat pump at the design stage ensures optimal placement for the indoor and outdoor units. Architects can collaborate with system designers to integrate the technology seamlessly into the home’s layout.
Space Considerations: While modern heat pumps are compact, they still require adequate space for the indoor unit and a location for the outdoor unit that complies with noise regulations. Our advanced models operate quietly, with sound levels comparable to rustling leaves. Ochsner Heat Pumps can provide an effective solution for those considering a Retrofit project.
Sizing and Heat Loss Calculations: Proper heat loss calculations are crucial to selecting the right size heat pump. Oversized systems can lead to inefficiency and increased cycling, which may reduce the system’s lifespan.
HOW LONG SHOULD I EXPECT MY HEAT PUMP TO LAST AND WHAT MAINTENANCE IS INVOLVED?
A well installed heat pump can last a long time, but as with most things in life there are varying degrees of quality. Some heat pumps may only last 7 years where others using the highest quality components last much longer. At Ochsner we design our heat pumps to last 20+ years if they are sized correctly, well maintained and serviced.
The compressor is like the engine in a car, some engines last 100k miles and others 400k. Ochsner heat pumps are tested to last 60,000 run hours which is triple many other brands. Remember high quality annual services and appropriate sizing are key to ensuring long-term reliability. The outdoor unit is exposed to the elements so these can require maintenance or replacing sooner on lower quality heat pumps.
Ochsner partner with many qualified installers across the UK to ensure that your heat pump is installed to a high standard followed by an Ochsner trained engineers complete the final commissioning. This also ensures that all warranties and guarantees are activated successfully.
WHAT ARE THE ENERGY SAVINGS AND ENVIRONMENTAL BENEFITS?
Heat pumps (can) offer significant energy savings compared to traditional gas or oil boilers, especially when paired with solar panels and battery storage systems.
By utilising renewable electricity and taking advantage of variable-rate tariffs, homeowners can lower their energy bills while reducing their carbon footprint.
WHAT ELSE SHOULD I CONSIDER?
Noise: Most modern heat pumps are designed to operate quietly, making them suitable for residential use, even in urban settings. Ochsner design ensures that the heat pumps are whisper quiet at 28dB.
Cold Weather Performance: Heat pumps are effective in sub zero (in) temperatures with some brands providing heat when outdoor temperatures are as low as -15 to -20°C which is the Austrian winter temperatures Ochsner heat pumps are designed for, making them more than reliable even during UK winters.
Aesthetics: Outdoor units can now be customised in a range of colours to complement your home’s exterior, ensuring they blend seamlessly with the overall design.
WHY CONSIDER HEAT PUMPS FOR YOUR NEW BUILD?
For clients looking to future-proof their homes, Ochsner heat pumps are an excellent choice. They align with the principles of sustainable living, providing a renewable and efficient heating solution that reduces reliance on fossil fuels.
By incorporating a heat pump into your new build design, you can enjoy a comfortable, eco-friendly home that meets modern energy standards. For more information on how to integrate heat pumps into your project, feel free to consult Allan Corfield Architects for tailored advice and expertise.
This informative guide provides a comprehensive overview of heat pump technology, helping to empower any self-builder to make an educated decision for their projects.