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Mechanical Ventilation with Heat Recovery (MVHR)

Sometimes referred to as Heat Recovery Ventilation or HRV, our Axco range of Counterflow and Rotar MVHR systems offer energy efficient ventilation to suit all budgets and house types throughout NI, Ireland and UK.

What is Mechanical Ventilation with Heat Recovery and what are the benefits?

Fresh air is continuously drawn into the home via a low energy heat recovery ventilation unit, located in the roof space/utility area of the home. The ventilation unit filters the incoming air to remove pollutants and insects. Once passed through the heat exchanger within the ventilation power unit, the warm, clean, fresh filtered air is distributed around the home through a series of ducts which are run to each habitable room i.e. living room, bedroom etc.



The air from wet rooms i.e bathrooms, kitchens, wc’s, utility areas etc is continuously extracted and filtered back through the ventilation unit. The heat from the extracted air is transferred to the fresh incoming air. The heat recovered can off-set the heating costs and will reduce fuel bills. The system provides low energy balanced continuous ventilation without the need for extract fans or window vents, ensuring a draught-free living environment.

Our AXCO range of MVHR systems are designed to recover up to 95% of the heat normally lost through open windows, trickle vents and other break-out points i.e extractor fans in a building structure. 

  • Constant clean, fresh filtered air reduces symptoms for asthma and allergy sufferers
  • Improves indoor air quality throughout the home
  • Excellent Heat Recovery provides positive enhancement of energy efficiency in the home
  • Enhances heat distribution
  • Complete condensation control throughout
  • Eliminates mould & mildew
  • No need for window trickle vents or extractor fans.
  • Constant change of air without draughts
  • Removes musty odours
  • Quiet in operation
  • Economical to run
  • Aids Radon Dispersion

We have a wide range of MVHR systems available to suit every lifestyle, house type and budget, including Counterflow Heat Recovery Ventilation and Rotar Technology, and PassivHaus approved. 

With 35+ years experience in the self-build market, we understand the advancements in construction and the emphasis on 'green building' methods. Our experienced technical team have an extensive knowledge of all current building regulations and work closely with architects and contractors.