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The NIBE S1156 is an intelligent, inverter-controlled ground source heat pump with a new, more climate-friendly refrigerant without an integrated water heater. The heat pump provides optimised savings as it automatically adapts to your home’s heating requirements. The NIBE S1156 is our most energy-efficient ground source heat pump, thanks to innovative technology and our many years of experience.

The NIBE S1156 has a seasonal performance factor of up to 6.22, making it a highly efficient climate system with low operating costs. When connected to an external hot water cylinder, it provides hot water with high performance. The heat pump is designed for houses up to approx. 400 m2 and is available in two output sizes: 1.5–8 kW and 4–18 kW. The NIBE S1156 is designed with low noise levels and is suitable for both new builds and retrofit heating systems.

What is Quiet Mark?

Quiet Mark is the international certification programme associated with the UK Noise Abatement Society charitable foundation (est. 1959). Conducting expert acoustic testing and verification of products Quiet Mark has over the past 13 years driven change in manufacturing worldwide to prioritise noise reduction within the design of everyday machines, appliances, technologies and house build materials, creating the first one-stop platform for third-party approved noise reduction solutions for every living space to health and well-being.

Through specialist acoustic measurement and product assessment, Quiet Mark identifies the quietest products in over 80 product categories giving consumers, trade buyers, architects and specifiers a more informed choice about the sound levels of the products they buy to empower responsible product sourcing. The Quiet Mark scheme drives designers and manufacturers to reduce sound levels of their products enabling households and workplaces to rebalance the soundscape reducing stressful unwanted noise.

Why Quiet Mark?

"I couldn't hear my baby crying over the noise of the hairdryer"

The damaging effect of excessive noise on health, productivity and social cohesion is seriously underestimated. World Health Organisation research shows that environmental noise pollution affects mental and physical health and is now second only to air pollution as the world’s largest killer pollutant. Across an estimated population of 340 million people, at least 1 million years of healthy living are lost each year due to noise pollution in Western Europe.

In our fast-paced lives, vibrancy is exciting and necessary. But this heightened state can only be valued if there is also the opportunity to choose the alternatives of calm, quiet and the chance to switch off. Quiet Mark was established to provide a credible, independent public health product symbol and directory to help consumers and industry easily identify quietest products for the home, at work and for public spaces.

For more details - www.quietmark.com