Lunos e² Kit

In stock
Regular price $1,174.00
Kit Contents Each Lunos Kit comes standard with one transformer and one controller to operate the system -- Switches sold separately
Number of Fans Lunos fans work in pairs with up to 4 fans connected to each controller
Length of Fans Standard = 12" - 19.75" wall depth
Short = 8" - 12.5" wall depth
Standard Int Cover Comes with MERV 5 filters that are washable and reusable
Int Sound Reduction Cover Reduces sound by 6 decibels, comes with MERV 5 filter
Comfort Screen with MERV 13 Filter MERV 13 reduces PM 2.5 by up to 90%, the dominant size of particulates from wildfire smoke
Standard Ext Grill Angled slats to shed rain, includes a bug screen and drip edge
Ext Hood with Sound Absorption Durable, long-lasting protection, reduces exterior noise by 6 decibels.


Ductless, simple and highly efficient heat recovery ventilation (HRV) system. Operates in groups of 2 or 4 and are installed directly in the exterior wall. The regenerative core is charged every 70 seconds, after which the fan reverses and the incoming air absorbs the stored heat on its way in.


  • Continuous and balanced heat recovery ventilation without the need for ducts
  • Flow rates of: 10 / 15 / 20 / 22 CFM (depending on controller settings)
  • LUNOS e² fans are certified to UL 1815 Nonducted Heat Recovery Ventilators by NRTL: TUV SUD-America
  • Sound levels from 29 dB
  • It is a very quiet heat recovery ventilation system with specific fan efficiency that is second to none.


  • Includes one transformer (110V - 12V) and controller. One or two pairs (2 or 4 fans) can be wired to one controller.
  • Ventilation system efficiency: 0.15 Wh/m3[0.25W/CFM]
  • Heat recovery efficiency: 88% per DIBT/DIN V 4701 at 24 m3/hr (~15 CFM)
  • Humidity recovery: 20-30% in winter
  • Fan cycle: 70 seconds (standard fan) - 50 seconds (short fan)
  • Filter: G3 (MERV 5) comes with standard interior cover. MERV 13 available with Comfort Screen interior cover option.

Exterior Diameter of Tube: 6 5/16” (160 mm)
Diameter of the Fan Unit: 5 7/8” (150 mm)
Minimum wall thickness: 12” (300 mm) for Standard fans; 8” (200 mm) for Short fans
Inside Cover: 7 1/16” x 7 1/16” (180 mm x 180 mm)
Outside Grill Diameter: 7 1/16” (180 mm)

For Lunos systems purchased BEFORE April 2022 refer to:
Lunos e² Installation Guide for Controller 5/UNI No.39975

NOTE: 475 cannot ship Lunos products to Canada. Canadian customers, please contact for assistance.