Central heat recovery ventilation
STIEBEL ELTRON LWZ 180 / LWZ 280.
Central heat recovery ventilation units for apartments, houses and small commercial properties, with an integral controller and 7-day programme.
Houses
Apartments
Small commercial
Passive House projects
Key data
| Models | LWZ 180 · LWZ 280 |
| Airflow | 60–250 / 60–350 m³/h |
| Heat recovery | Up to 94% |
| Duct connection | 160 mm |
Suitability
Before you select it.
Check the installed duty
Confirm airflow at the required external pressure, acoustics, access, duct layout and controls. Published maximum recovery figures are not a guarantee of installed performance.
Confirm the exact supply
Model, accessories, filters, controls, availability and lead times are confirmed in the quotation.
Design and installation
Design, installation and commissioning are separate unless expressly included. Ventilation design support is available.
Specifications
Manufacturer data.
From the STIEBEL ELTRON Australia product page, checked 5 November 2026. Manufacturer data may change — check the current data sheet before ordering.
STIEBEL ELTRON states the units have been independently tested and certified by the Passive House Institute — see the certificates below.
An ERV (enthalpy) core is available for latent energy and humidity management.
| LWZ 180 | LWZ 280 | |
| Air volume flow | 60–250 m³/h | 60–350 m³/h |
| Heat recovery | Up to 94% | Up to 94% |
| Power consumption (fan max.) | 74 W | 134 W |
| Rated voltage | 230 V | 230 V |
| Filter class | ePM10 ≥ 50% (M5) | ISO Coarse > 60% (G4), F7 optional | same |
| Sound power level (EN 12102) | 43 dB(A) | 48 dB(A) |
| Dimensions (H × W × D) | 997 × 690 × 534 mm | 997 × 690 × 534 mm |
| Duct connection | 160 mm | 160 mm |
| Weight | 78 kg | 78 kg |
Downloads
Data sheets & guides.
Documents open from STIEBEL ELTRON Australia.
- LWZ 180 / 280 Data Sheet (May 2024)
- LWZ 180 / 280 Operation and Installation Guide
- Passive House certificate — LWZ 280
- Passive House certificate — LWZ 280 Enthalpie
- Passive House certificate — LWZ 180
- Passive House certificate — LWZ 180 Enthalpie
- Ventilation Commissioning Form
- Heat Recovery Ventilation Warranty
- Manufacturer product page (STIEBEL ELTRON Australia)
How to buy
Choose your route.
Trade & installers
Request pricing, availability and lead times for your project.
Homeowners & projects
Not sure the LWZ 180 / LWZ 280 suits your building? Start with ventilation design advice.
Quotation
Need pricing for the LWZ 180 / LWZ 280?
Tell us the model, quantity, delivery postcode and timing. We’ll confirm the supply and next steps.