MVHR – Mechanical Ventilation Heat Recovery

Heat Recovery Systems Explained

MVHR (Mechanical Ventilation Heat Recovery) systems, sometimes referred to as whole house ventilation systems, are getting a higher profile in domestic properties as their value in improving energy efficiency, removing stale moist air and in some cases filtering pollen and other airborne dust is recognised. This article explains what they do, what the components of a Mechanical Ventilation Heat Recovery System are and the reasons for their growing popularity in new and existing homes.

What does an MVHR system do?

An MVHR system removes moist stale air and delivers fresh air to a property, in an energy efficient way.

It works by extracting warm, moist air from around the home, putting it through a heat exchanger to extract the heat and then expelling the air to the outside. At the same time it takes fresh generally colder air from the outside and uses the heat from the heat exchanger to warm the incoming fresh air before delivering it around the house. Typically stale air would be removed from kitchens, bathrooms and toilets and fresh air would be introduced into living and sleeping areas such as lounges and bedrooms.

The system allows you to control the speed with which air is changed in a house, without relying on extractor fans or opening and closing windows. The system can be managed using a control panel possibly linked to humidity or carbon dioxide sensors or boost switches. The system can increase the speed of air changes if a bathroom reaches a specific level of humidity because someone is showering. The system can be given a manual boost to clear cooking smells more quickly.

Dampair supply and install high quality MVHR units. The first step in when thinking about an MVHR unit is deciding if your property is suitable. Costs can vary considerably when looking at MVHR but to give you an idea to supply and install an MVHR unit you would need a budget of £2,500 – £7,500 with larger systems exceeding £10,000+.

If you are interested in an MVHR system to ventilate your property the first step is to contact the Dampair team. You will need to produce floor plans of your property then our team can specify the correct size MVHR unit with all the correct ducting specifications needed.

Dampair MVHR Supply & Install

fomfort ultra s mvhr

Submit Floor Plans

Thinking of installing MVHR? Its easy. Fill in the quick quote form and we will give you a call to discuss your enquiry. For a guide price quotation we require floor plans.


Ducting Requirements

Dampair technical team will calculate what size MVHR unit your property requires and the amount of ducting required. Dampair can supply and fit all MVHR units.

ducting examples

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