Introducing the Lunos e2™ HRV System: Revolutionary Through-Wall Ventilation.
Experience the future of indoor air quality with the world's most compact and efficient decentralized heat recovery ventilator. The Lunos e2™ system operates without ductwork, exchanging stale air for fresh, filtered air while recovering up to 90% of heat energy. Simple to install and whisper-quiet, it’s the perfect solution for both new energy-efficient homes and retrofits.
Heat Recovery Efficiency: Up to 91%
Moisture Transfer: 20–30%
Airflow Rates: 11 / 18 / 22 CFM (depending on model/setting)
Power Consumption: 1.4–3.3 W per unit (depending on airflow)
Specific Fan Power: 0.09 W/CFM
Unit Diameter: e2 Standard 10 1⁄2"
Sleeve Length: Adjustable for wall thicknesses from 12" (300 mm) up to 19.5" (500 mm); extension kits available for thicker walls
Installation Type: Through-wall (ductless)
Ceramic Heat Exchanger: Compact regenerative core made of advanced composite material
Ductless Installation: Simple, direct wall penetration — no bulky ductwork required
Quiet Operation: Sound levels as low as 16.5 dB, ideal for bedrooms and living spaces
Smart Control: Compatible with Lunos Smart Comfort Control for humidity-responsive, multi-unit operation
Frost Protection: Built-in freeze protection via automatic airflow reversal
Filtration Options: Includes standard filter; optional MERV 7 or MERV 13 pollen and fine dust filters available
CSA 22.2 Electrical Safety
CSA 439 Performance of Heat/Energy-Recovery Ventilators (in process- expected shortly)
Compliant With: RoHS, WEEE, EnEV, DIN 1946-6
Tested To: DIBt and DIN 308 standards
Passive House Compatible: Used in low energy houses