Innovative ventilation supplier Lunos has picked up awards for its decentralised heat recovery ventilation and demand-controlled ventilation systems.
“The new e2neo with heat recovery is even quieter and has improved levels of efficiency,” the company said. Lunos developed the e2neo based on the well-established e2 system. The company said the new system functions silently at rates of 5 m3/h, facilitated via a newly developed motor. “In addition to a considerably reduced operating noise level [the new motor] also enables more precise regulation.” This means it is not only quieter than the lower-priced e2, but also more efficient. The company added that the familiar, reliable effectiveness of the e2 is still available, but that the e2neo can operate at 0.3w – making it one of the most cost-effective ventilation units worldwide.
A new generation within the Silvento DCMEV range, Lunos said the Silvento ec requires less energy, since power input has been considerably reduced as a result of ec engineering. It is quieter than its predecessor, since it operates far more efficiently and can be operated with lower volume flows. The lowest ventilation level is 15 m³/h.
Two different technical modules are available to control the Silvento ec: a basic module and humidity module. With the basic module, all stages of the Silvento ec can be selected and combined with time lag, interval switching and delay time. With the humidity module, the system gains additional humidity and temperature sensors. “There has never been a more sophisticated, individual humidity control,” said the company. The Silvento can operate at 1.8w making it one the most costeffective ventilation units worldwide.
The new Silvento ec is 100% compatible with all Lunos parts, to ensure that all devices can, if required, be swiftly and easily replaced with new devices.
Author: Hugh
Hugh is the founder of Partel, an engineer with 20 years of low energy construction experience. He is a certified passive house designer with genuine passive house construction experience, a detailed knowledge of ventilation, natural insulation and thermal bridging. Hugh is a long time user and advocate of WUFI.




Hello, what does DCMEV mean and what’s the diff with MVHR, which I take to mean Mechanical Ventilation Heat Recovery…can you give examples…Thanks..Bill
Hi Bill,
MEV is mechanical extract ventilation, and DCMEV is demand controlled mechanical extract ventilation. For LUNOS DCMEV that means smart extract fans that respond to time, temperature and humidity changes which dictate the speed of the extract fan. This depressurises the dwelling and our patented fresh air device – ALDR- allows fresh filtered air into the dwelling. All units are attenuated for sound and use EC technology – the running cost of a LUNOS system can be as low as €4.50 per annum.
If you look at the link here http://lunos.ie/systems.php there are 3 listed systems:
1 – Exhaust air system – Demand controlled extract system
2 – Hybrid system – MHVR throughout with supply and extract with additional timed extracts to wetrooms.
3 – MVHR – full LUNOS MVHR system.
Hugh