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Mechanical Ventilation with Heat Recovery (MVHR)

 

MVHR is a whole house air ventilation system which supplies fresh air into all habiltable rooms and extracts contaminated stale air from the property whilst recycling the heat generated within it.

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It is important to note, MVHR is NOT a heating system nor is it an air conditioning system, but designed and installed correctly it will minimise the heat losses from within your property.

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Although MVHR can be installed in any building, its use is not justified unless you have a well insulated & airtight house, therefore the istallation of this type of system is best carried out during renovation works or during the initial building of the property.

The system:

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A MVHR system comprises of a Heat Recovery Unit and a network of ducting which is connected to each room.

The Heat recovery Unit continuously extracts air from Kitchens, Utility rooms,  Bathrooms & Toilets of the property, and passes the warm stale air over a heat exchanger before extracting the stale air to outside.

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At the same time, fresh clean air is drawn in from outside, passes through a filter and is also drawn through the heat exchanger and recovers up to 95% of the heat. This heated air then supplies air for the habitable rooms such as living rooms and bedrooms.

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When higher rates of ventilation are required (Cooking, bathing, etc) the system can be boosted to a higher extract rate.

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In warmer months a summer by-pass function helps ensure comfort levels are maintained in the home.  When the summer by-pass is activated, the dwelling continues to be ventilaated and recieve fresh filtered air, however the heat recovery process is intermittently switched off (heat recovery is by-passed).

Benefits  of MVHR

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  • Constant supply of fresh, healthy, filtered air to your home

  • The best available ventilation system for new or existing homes

  • No trickle vents or bathroom extractor fans required

  • Eliminates mould, mildew and combats condensation

  • Recovers up to 95% of heat extracted from wet rooms

  • Natural cooling without opening windows

  • Balanced heat distribution throughout the home

  • Your home is quieter and draught free

  • Complies with the latest building control requirements

  • Clinically proven to help allergy and asthma sufferers

  • Fully controllable system with manual or remote controls

  • Reduce your heating costs by up to 25%

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