Development and manufacture of highly efficient air-to-water heat pumps with propane (R290) for residential and commercial applications.
LAMBDA Wärmepumpen GmbH
Kirchbichl (AT)New on Amplifa
About LAMBDA Wärmepumpen
LAMBDA Wärmepumpen GmbH, headquartered in Kirchbichl in Tyrol, develops and produces air-to-water heat pumps of the EUREKA EU-L series in monoblock design. The performance range extends from 10 kW (EU10L) via 13, 15 and 20 kW up to the large-scale heat pump EUREKA Magna EU35L with up to 40 kW heating output at A7W35. All units operate with the natural refrigerant propane (R290, GWP 3) and achieve flow temperatures up to 70 °C, making them suitable for use even in existing buildings with radiators. The core of the technology is the patented 3K-Prozess®, an optimised fluid dynamics design that improves heat transfer in the evaporator four- to six-fold and reduces the distance between evaporation temperature and source inlet temperature to an average of 3 kelvin. Independent measurements by the Wärmepumpentestzentrum Buchs confirm SCOP values of up to 6.10 (low temperature). The portfolio is complemented by a control centre, heating elements and hydraulic accessories such as buffer, hygiene and domestic hot water tanks, combi tanks and fresh water systems. Systems are monitored and optimised via the Connected Heat remote maintenance system. Products are sold through a network of specialised trade partners in Austria, Germany, Switzerland, Italy, France and Sweden.
- Site
- Kirchbichl, Austria
- Processes
- Air-to-water heat pumps (EUREKA EU-L series: EU10L, EU13L, EU15L, EU20L, EU35L), Heating operation with flow temperatures up to 70°C, Cooling (active cooling operation), 3K-Prozess® (patented optimised fluid dynamics for heat transfer), Hydraulic systems and accessories: buffer, hygiene and domestic hot water tanks, combi tanks, Fresh water station (domestic hot water generation SPF >5), Remote maintenance/remote monitoring (Connected Heat), Energy monitoring
- Materials
- Propane (R290), R410a, Machine oil PZ46M POE Hatcol 4467, PAG, Propane (R290, GWP 3), Machine oil PZ46M POE Hatcol 4467 / PAG
- Certificates
- Independent efficiency testing (EN 14825, Testzentrum Buchs), Sound testing according to EN 12102, ISO 9001
- Industries
- Residential construction (new build and renovation), Multi-family buildings, Hospitality/commercial, Industrial buildings
- 01
Engineering & development (3K-Prozess®)
- 02
Manufacture/assembly of the monoblock outdoor units
- 03
Assembly of control centre & charging station
- 04
Testing & efficiency measurement (e.g. Testzentrum Buchs)
- 05
Sales via specialised trade partners
- 06
Connected Heat remote maintenance & service
Refrigerants & Processes
Propane (R290, GWP 3)
Natural refrigerant with minimal GWP in all EUREKA units; charge quantities 1.4–4.9 kg depending on model.
R410a
Conventional refrigerant with GWP 1920, which LAMBDA deliberately avoids as a matter of comparison.
Machine oil PZ46M POE Hatcol 4467 / PAG
Lubricating oils in the refrigerant circuit of the EU-L series.
Sites
Kirchbichl
ATHeadquarters / production
- Part weight / size
- Unit weight 150–450 kg (EU10L–EU35L)
- Materials
- Propane (R290), R410a (reference)
- Air-to-water heat pump monoblock EU10L–EU35L
- Control centre EU-L series
- Heating element (charging station)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Air-to-water heat pumps (EUREKA EU-L series: EU10L, EU13L, EU15L, EU20L, EU35L)Engineering | – | Outdoor unit EU35L 2320 x 1700 x 1190 mm × 1700 mm × 2320 mm | 150 kg (EU10L) – 450 kg (EU35L) | – | Propane (R290) refrigerant, Machine oil PZ46M POE Hatcol 4467, PAG |
| Heating operation with flow temperatures up to 70°CEngineering | – | – | – | – | Propane (R290) |
| Cooling (active cooling operation)Engineering | – | – | – | – | Propane (R290) |
| 3K-Prozess® (patented optimised fluid dynamics for heat transfer)Engineering | – | – | – | – | – |
| Hydraulic systems and accessories: buffer, hygiene and domestic hot water tanks, combi tanksAssembly | – | – | – | – | – |
| Fresh water station (domestic hot water generation SPF >5)Assembly | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Air-to-water heat pump monoblock | LAMBDA Wärmepumpen GmbH EU10L | – | Heating output A7W35 2.1–13.7 kW; outdoor unit 1730 x 970 x 610 mm; 150 kg | – | – |
| Air-to-water heat pump monoblock | LAMBDA Wärmepumpen GmbH EU13L | – | Heating output A7W35 3.3–16.8 kW; outdoor unit 1730 x 970 x 610 mm; 155 kg | – | – |
| Air-to-water heat pump monoblock | LAMBDA Wärmepumpen GmbH EU15L | – | Heating output A7W35 5.1–20.4 kW; outdoor unit 1730 x 970 x 610 mm; 165 kg | – | – |
| Air-to-water heat pump monoblock | LAMBDA Wärmepumpen GmbH EU20L | – | Heating output A7W35 6.7–28.3 kW; outdoor unit 1772 x 1160 x 800 mm; 210 kg | – | – |
| Air-to-water heat pump monoblock | LAMBDA Wärmepumpen GmbH EU35L (EUREKA Magna) | – | Heating output A7W35 8.5–40.0 kW; outdoor unit 2320 x 1700 x 1190 mm; 450 kg | – | – |
| Control centre | LAMBDA EU-L series | – | 310 x 170 x 130 mm; 3 kg | – | – |
| Heating element (charging station) | LAMBDA | – | max. 8.8 kW (EU10L-EU15L), 10 kW (EU20L); 400VAC 50Hz | – | – |
Additional services
Reference customers
Quality
Efficiency and sound levels are independently tested in accordance with EN 14825 and EN 12102 respectively; the Wärmepumpentestzentrum Buchs confirms SCOP values of up to 6.10 and peak efficiency. Customer-side operating data (SPF 4.0–7.3) is remotely monitored and documented via Connected Heat.
| Evidence | Kirchbichl |
|---|---|
| Independent efficiency testing (EN 14825, Testzentrum Buchs) | |
| Sound testing according to EN 12102 | |
| ISO 9001 |
History
- 2019
Presentation of the EUREKA EU-L series (field test units, reference projects from 2020)
- 2020
First reference projects (EU13L) commissioned in Austria, Germany and Italy
- 2025
2nd place Tyrolean Austrian Leading Companies Award, large enterprises category (second time in a row)
- 2026
2nd place Tyrolean Austrian Leading Companies Award (third time in a row); market launch of the EUREKA Magna EU35L large-scale heat pump; Huggler Gebäudetechnik becomes part of the LAMBDA Group (Switzerland)