What is a MVHR (Mechanical Ventilation with Heat Recovery) system?
The way it works is by recovering the thermal energy from the air within the building and using this to precondition the outside fresh air as it is drawn into the building.
It will work well in both summer and winter with smart controls on most modern units able to control a bypass flap that allows the unit to bring in fresh air directly without passing it through the heat exchanger.
What are the health benefits of a MVHR system?
Indoor air quality is essential for health and wellbeing, In the MVHR unit the air brought in from outside is passed through replaceable filters in the unit.
MVHR is also an advantage where homes are situated close to industrial/ commercial areas or near to a busy road which may have poor external air quality levels.
When should we consider MVHR for our project?
MVHR systems provide controlled ventilation and are most effective when installed in properties with good air tightness levels. For the best operation of a MVHR system we recommend achieving an air tightness level of at least 5 ACH/hr at 50pa, with an ideal target of below 3 ACH/hr at 50pa.
We believe setting air tightness goals is essential for both new builds and refurbishment projects.
Other criteria for installing MVHR (other than air tightness)
1. Noise: if a property suffers from noise, e.g. traffic or airport, MVHR systems with adequate silencers will provide a good solution for ventilation without the need to open windows. Additionally noise reduced glazing will help.
2. High condensation: MVHR systems will actively dehumidify when it is outside colder than inside.
3. Air quality: if the air quality is problematic, various kind of filtration in MVHR systems can deal with pollen, rural and industrial smells.
What systems do we work with?
Zehnder
Regarded as one of the highest quality MVHR manufacturers on the market, their reputation for excellence precedes them. With a dedication to innovation, superior craftsmanship, and unmatched customer service, they stand out as a top choice for those seeking cutting-edge ventilation solutions.
Sabik
An efficient and top-notch budget-friendly mechanical ventilation with heat recovery (MVHR) system that not only provides exceptional performance but also delivers unmatched value. This system guarantees superior air quality and energy savings, making it an ideal choice for those looking to improve their indoor air environment.