Heat Recovery/Ventilation (HRV)

Heat Recovery/Ventilation (HRV)


A heat recovery ventilation (HRV) or mechanical ventilation heat recovery (MVHR) system is designed to extract warm stale air from a building and exchange a portion of the heat energy to the supplied fresh air. Why install HRV? In modern, well insulated houses where energy consumption, noise pollution, air tightness and efficiency are key words, air quality can be a significant problem due to a tendency to keep windows closed and a lack of external wall vents to provide natural ventilation. This can give rise to high humidity, mould and build-up of harmful gasses, leading to an unhealthy situation for the occupants. A HRV system eliminates these problems whilst allowing you to keep your house sealed thereby giving you comfort and efficiency. How does it work? As stated, stale air with high humidity is extracted from the wet rooms and released, through a heat exchanger, to the outside of the building. Fresh outside air is filtered and warmed by passing through the heat exchanger and supplied to the living areas. The main constituents of the system are a network of supply and extract ducts carried in the ceiling space and attic, a supply and/or extract duct in the ceiling of the designated rooms and the main heat exchange unit with feeds to the outside of the building. What are the benefits of HRV? •No mould growth in bedrooms, bathrooms etc. due to lower humidity. •Less noise from outside due to lack of external wall vents. •Less dust as windows can be kept closed. •Fresh smelling bathrooms because air is constantly being changed. •Increased security. •Increased energy efficiency of house. •save on heating costs Is it easy to install a HRV system? A HRV system is very easy to install if it is designed properly and installed at the correct phase of the build. We will laise with your building contractor from the design phase of the project to ensure that the installation is carried out smoothly and unobtrusively. How can I be sure that this is a high quality product? We supply Vent-Axia Heat Recovery products, one of the leading suppliers on the world market. All of the products we use are European Certified for use in the domestic market and conform to SAP Appendix Q.