Stiebel Eltron has launched its most energy efficient range of inverter air source heat pumps yet, as the manufacturer continues its commitment to the UK’s net zero targets. 

The WPL-A Premium range, comprising the WPL-A 07 and WPL-A 05 Premium, is designed for both heating and cooling in domestic buildings.

The WPL-A 07 Premium model has a Seasonal Coefficient of Performance (SCOP) rating of up to 4.21 at 45°C, making it the most energy efficient heat pump on the market in the UK. Both models can achieve flow temperatures of 75°C, which means the end user is not required to use a separate electric element to run regular hot cycles in their hot water tanks to remove bacterial growth.

The WPL-A Premium range uses Stiebel Eltron’s eco-friendly R454C refrigerant, which has a Global Warming Potential (GWP) of less than 150 and contributes at least 10 times less to the greenhouse effect than other refrigerants on the market. The refrigerant is also flame-retardant and explosion-proof, providing maximum safety during installation.

This launch marks another step in Stiebel Eltron’s commitment to improving the environmental credentials of both existing and new buildings.

Mark McManus, managing director at Stiebel Eltron UK, said: “We’re always looking at how we can improve our product ranges and their performance – whether that’s by improving our existing models or developing new ones.

“The demand for heat pumps has grown enormously and a recent survey from the Heat Pump Association last month found that sales will continue to double over the next year alone. We therefore want to make sure we’re at the forefront of innovation with our products and can offer customers the most effective and efficient products on the market.”

Both the WPL-A 07 and WPL-A 05 Premium boast almost-silent operating systems and can be fully integrated into home networks and controlled via a smartphone.