Compact central heat recovery ventilation for apartments
STIEBEL ELTRON LWZ 70 E.
A compact central heat recovery ventilation unit developed for apartments, installed indoors.
Apartments
Small dwellings
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.
Designed for indoor installation only.
| Air volume flow | 50–180 m³/h |
| Heat recovery | Up to 90% (product overview) |
| Power consumption | 140 W |
| Rated voltage | 240 V (as published) |
| Protection level | IP31 |
| Filter class | G3 |
| Duct connection | 125 mm |
| Condensate drain | 15 mm PE |
| Dimensions (H × W × D) | 600 × 560 × 290 (as published) |
| Sound power level (EN 12102) | 46 dB(A) |
| Weight | 25 kg |
Downloads
Data sheets & guides.
Documents open from 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 70 E suits your building? Start with ventilation design advice.
Quotation
Need pricing for the LWZ 70 E?
Tell us the model, quantity, delivery postcode and timing. We’ll confirm the supply and next steps.