LUNOS e2

LUNOS e² neo

$1,255.00

Ductless, simple, and highly efficient heat recovery ventilation (HRV) system

Extra quiet fans, e2 decentralized ventilation system is an adaptable and affordable alternative to centralized systems. >>Read More

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ROFLEX3

Operating and wired in groups of 2 or 4, these fans provide continuous ventilation without the need for
ductwork – installed directly in the exterior wall. The regenerative core is charged every 70 seconds,
afterwhich the fan reverses and the incoming air absorbs the stored heat on its way in. Creates a very
quiet heat recovery ventilation system without the need for ducts and balancing, with specific fan efficiency
that is second to none.

The basic unit is a through wall fan, with a ceramic regenerative heat exchanger behind it. Operating and
wired in pairs, these fans provide continuous ventilation without the need for duct-work and are installed directly
in the exterior wall.

The fan’s heat recovery is possible thanks to a ceramic core that is charged in a 70 second cycle. To learn about how LUNOS heat recovery works, watch our short video introduction to the LUNOS system.


Note: the e2 neo currently is available only on special order (9-12 week lead time). This page is under construction – please visit the Lunos.de site for more information.


  • Includes one transformer (110V-12V) and controller. Maximum four fans (two pairs) can be wired to one controller.
  • Installation sleeve included – can be pre-installed in wall before insulating/during construction
  • Creating a very quiet heat recovery ventilation system without the need for ducts and balancing, with specific fan
    efficiency that is second to none.
  • Cannot ship LUNOS products to Canada. Canadian customers, please contact ecogenia for assistance.

  • See Lunos site for more information
  • The Lunos e² Primer
  • Introducing the Lunos eGO
  • Lunos e²: A Zero Energy Home Solution
  • Sizing Lunos e² through-wall ventilation units
  • Tighter than expected: time to ventilate without compromise
  • No Freezing Means No Defrost Mode for Lunos e² High-Efficiency Ventilation
  • Lunos e² Testimonials
  • Lunos e² HRV – data for input into PHPP ventilation sheet
  • Lunos and REM/rate
  • Builder Spotlight: Maria Klemperer-Johnson of the Hammerstone School and Hammerstone Builders
  • Which Switch Is Which? A Guide to Operating Your Lunos
  • Installation Video:

  • Lunos Installation Guide Video
  • Related Videos:

  • Introduction to the Lunos Heat Recovery System
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