Austrian manufacturer offers modular air-to-water propane heat pumps

<p class="p1"><span class="s1">Lambda Wärmepumpen GmbH said its Eureka heat pump series uses a patented fluid mechanics system that reportedly improves heat transfer by four to six times while maintaining a temperature difference of just 3 K between the air and the refrigerant. Its seasonal coefficient of performance ranges from 4.50 to 6.10.</span></p><p>Austrian heat pump manufacturer Lambda Wärmepumpen GmbH has presented a new air-to-water heat pump series designed for residential, commercial and industrial projects.</p>
<p>“Our Eureka-Luft (EU-L) heat pump models – EU10L, EU13L and EU15L – are manufactured in Austria, while the EU20L and EU35L models are produced in Italy,” a company spokesperson told <strong>pv magazine</strong>. “Our products are currently sold in Austria, Germany, Switzerland, Italy, the Benelux countries, France and Sweden through professional partners.”</p>
<p>&#8220;Efficiency tests carried out by an independent testing institute in accordance with EN14825 confirm: significantly reduced energy consumption, higher performance, and fewer as well as shorter defrost cycles. In short: more than 30% lower electricity consumption while delivering the same heating output compared to the currently highest heat pump energy efficiency standard A+++,&#8221; the spokesperson went to to say. &#8220;Another key feature is our cascade solution: with our concept, up to five heat pumps can be installed side by side for a total capacity of 175 kW and connected via a shared pipeline system, which is ideal for large buildings and commercial applications.&#8221;</p>
<p>All models in the series use propane (R290) as the refrigerant and feature a patented fluid mechanics system, which reportedly improves heat transfer by four to six times while maintaining a temperature difference of just 3 K between the air and the refrigerant.</p>
<p>For residential applications, the EU10L delivers approximately 9 kW of power at -10 C, with a seasonal coefficient of performance (SCOP) of 6.08 at 35 C and 4.54 at 55 C, and compact dimensions of 1,710 mm × 950 mm × 610 mm.</p>
<p>The EU13L provides 12 kW with a SCOP of 6.10-4.50, maintaining the same dimensions, while the EU15L delivers 15 kW at a SCOP of 5.73-4.47.</p>
<p>The largest residential model, EU20L, produces 20 kW with a SCOP of 5.68-4.48, slightly larger at 1,772 mm × 1,160 mm × 800 mm to accommodate its increased capacity.</p>
<p>For large residential, commercial and industrial projects, the EU35L offers 32 kW of power with a SCOP of 6.06 / 4.55 and dimensions of 2,320 mm × 1,700 × 1,190 mm, making it suitable for larger-scale heating requirements.</p>
<p>All systems can reportedly reach a supply temperature of 70 C, making them suitable for both new builds and retrofit projects with higher temperature requirements, the manufacturer said.</p>
<p>&#8220;The Eureka Magna EU series combines residential versatility and commercial scalability with high efficiency, low environmental impact, and modern control features,&#8221; the spokesperson added. &#8220;The EU35L model, in particular, exemplifies the potential of large-scale air-source heat pumps for sustainable heating in both commercial and industrial settings. Delivery is planned from Q2 2026.&#8221;</p>
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