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When outside air temperature differs significantly from the inside air temperature, a great deal of energy will be lost through natural ventilation. With a Heat Recovery Ventilation system, the fresh air supplied to your living spaces will be pre-warmed to virtually the current temperature of your house.
Most ventilation manufacturers recommend that filters be changed at least once a year, but this is subject to where you live and the conditions of air quality around your home. If you live in a town or city or beside a busy road, air pollution tends to be greater so your ventilation filters will need to be changed more often.
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Welcome to Munster HRV

Based outside Cashel in Co. Tipperary, we supply all types of ventilation products throughout Ireland and the UK.

We also specialise in the installation of domestic heat recovery ventilation systems.

Heat Recovery Ventilation (HRV) is a concept that has been around for quite a while, and has steadily become one of the most  important components in energy efficient homes.  HRV systems work by removing the moisture from the air leaving rooms such as kitchens and bathrooms. The heat is taken from the moisture leaving the building and transferred to the fresh air coming in.  Fresh air is generally supplied to bedrooms, dining rooms and living rooms.

Heat Recovery Ventilation is not a heating system; it is a ventilation system that will ultimately help to reduce your heating costs.

The most important part of the HRV unit is the heat exchanger.  Most heat recovery units have an efficiency of 90 %  with very low power consumption.  All of the units that we sell are independently tested by the Building Research Establishment (BRE) in the UK.

The end result: your home should be condensation free and fresh, with high levels of comfort.

Heat recovery ventilation is only suitable for airtight homes with high levels of insulation.  This will insure minimum heat loss through the structure of the building, or through poor ventilation.

The cost of installing a heat recovery ventilation system will vary.  The size and volume of your home will determine the size of HRV Unit  and the quantity of ducting required.  Some larger homes will need two HRV units to achieve correct airflows.

Air flow from the Heat Recovery Ventilation unit is distributed through a ducting system.  Ducts should be solid to reduce restriction of airflow.  As a general rule, ducting in attics should be insulated to avoid condensation and heat loss.

We do advise that all HRV Units are installed within the insulated envelope of the building.  This will ensure that they are at their most efficient and will not lose heat in a cold attic.  It will also be easier for maintenance.  Filters in the HRV system will need to be changed approximately once a year, and will require cleaning, on average, every 3- 4 months.

If you would like to receive a quote from us please email us your construction plans to: Email:

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2015 Munster HRV: Domestic Heat Recovery Ventilation Products.

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