MVHR Systems

Energy efficient ventilation for homes and commercial premises.

What is MVHR?

Heat recovery ventilation; also known as HRV, is a system that works to recover wasted heat around your home by replacing it with fresh, filtered air, working to combat excess moisture and stale areas that can cause other issues if left unattended.

Heat recovery can also be referred to as Mechanical Ventilation Heat Recovery (MVHR), which works to achieve the same filtering system as HRV but is also designed to target condensation and mould, through a constant ventilation process.

Heat recovery systems provide ventilation throughout a property to extract and clean stale and moist air throughout your home. These systems are ideal for a range of properties that may be losing heat and require some help in recovering it.

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What does MVHR do for you?

There are a number of things that a MVHR system will do for you and your home, such as:

Reduce your energy bills.
Increase oxygen levels within the home.
Decrease Co2 levels.
Reduce mould, condensation, and humidity problems.

Increase the air quality within your home.
Recover precious heat, normally waisted with traditional ventilation.
Balance the temperature throughout your home.
Filter unwanted pollutants, car fumes, pollen, mould and VOC’s (volatile organic compounds).

Types of MVHR systems

There are 2 types of heat recovery systems that we install, these are centralised and decentralised systems.

Centralised MVHR systems

Centralised MVHR systems are perfect for domestic solutions able to be fitted in a loft of cupboard space. These systems are connected through ductwork with low-profile, frameless vents installed in walls or ceilings in each room while the central unit remains out of the way.

Due to the design of these systems, even rooms within your home that don’t have exterior walls can benefit from properly filtered and ventilated air.

Decentralised MVHR systems

Decentralised MVHR systems are made up of individual ventilators in each room. The ventilators are mounted to the walls around the house, where each unit extracts stale, warm, and humid air before reversing airflow to provide fresh air from outside back into the room.

These systems capture more than 90% of the heat that is supplied to it and are connected through WiFi to provide a whole home solution.

Contact us Today to Arrange your MVHR System Installation

Feel free to contact our team for more information on our Heat Recovery Systems on 0345 0179963 or email us on sales@chillairconditioning.co.uk.

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How do heat recovery systems work?

Heat recovery systems work by extracting the warm, damp air from a room and, instead of allowing the heat to escape, transfers it to a heat exchanger. Fresh air from outside is then passed through a filter and passes over the heat exchanger to supply warm air back into the room.

For commercial spaces MVHR systems are usually installed within an attic or mechanical room to remain out of sight while also allowing the extraction of air from outside. These systems are typically connected via a network of room air valves which allows extracted air to pass through, uncontaminated and be released as fresh, filtered clean air.

In domestic situations, heat recovery systems work through the network of valves which are connected throughout the home. One half of the system involves extracting the stale air from rooms such as bathrooms or kitchens and replacing it with the filtered air from outside which is then transferred into each room. The stale, unfiltered air is then simply passes through the valve network, without coming into contact with the new fresh air and released back outside.

Benefits of heat recovery systems

Heat recovery systems are beneficial for a variety of spaces, aside from the obvious benefits of having a heat recovery system in your home, if you’re looking for a MVHR in your office or commercial space, you can still enjoy similar benefits of homeowners.

If saving on your energy bills isn’t enough to install a heat recovery system in your domestic or commercial space, there are other benefits of heat recovery systems to consider.

Indoor Air Quality

Indoor air quality (IAQ) may not be the first thing many think about when it comes to the installation of a heat recovery system, but the air quality within our homes is actually quite important.

In both commercial and domestic cases air pollution can cause a range of health issues.

Many known pollution causes include cooking appliances and tobacco smoke, which are found more within domestic homes than commercial space and so this is another reason why a heat recovery system in the home can prove to have many benefits, not just on cost, but health too. If you or someone you live or work with has a lung condition such as asthma or bronchiectasis for example, improving your indoor air quality should be a priority.

Common sources of indoor air pollution include tobacco products, gas appliances, household cleaning products and even excess moisture that is commonly found in most bathrooms.

Lowering Heating Costs

You could find hundreds of resources on how to reduce your energy bills, but you’ll also find that heat recovery systems would be mentioned in many of them, for the simple reason that they really do save on your heating and energy costs.

Your carbon footprint can also be improved from installing a heat recovery system.

You’ll also find that on average many save around 38% on their energy bills, so if you’re concerned about the cost of installation, you could make your money back in years to come, especially from a commercial point of view.

In domestic cases, heat recovery systems recover anywhere from 60-95% of the heat, allowing you to use your thermostat less and save more money.

MVHR FAQs

Will MVHR prevent mould?

Think of mould as a potential side effect. Everyday activities like showering and cooking produce steam, causing moisture to accumulate in your home. This build-up can create damp areas, which are ideal environments for mould growth.

MVHR systems prevent moisture build-up, effectively addressing dampness and stopping mould from forming in the first place.

How do I maintain a MVHR system?

If you think maintaining your heat recovery system is going to be difficult and time consuming, think again! A simple filter change will ensure that your heat recovery system performs at its best and continues to provide your home or commercial space with fresh air that is free of dust.

However, if you do leave your heat recovery system unattended for a long period of time, you can sometimes run into a few issues. Extraction and fan performance can be reduced, and room temperatures may become uncomfortable, so it’s advised to keep your heat recovery system maintained at least a couple of times a year to extend the longevity of your ventilation system.

How much does a heat recovery system cost?

The installation cost of the units we install can vary depending on your requirements and the size of your home. The bigger your home, the bigger the system will need to be.

The average equipment can pay for itself in less than 5 years. Feel free to contact our team for a more detailed quote

How efficient are heat recovery systems?

All the units we install have an Energy Rating of A+ and aside from recovering up to 90% of heat that’s usually lost and wasted throughout a home from standard ventilation systems, a heat recovery system works much more efficiently and is designed to save, filter and release air and heat that may have otherwise been wasted.

How much energy will a MVHR system save?

A mechanical ventilation system with heat recovery typically recovers up to 90% of the heat that would otherwise be lost. However, airtightness plays an important role in maximising energy savings.

In general, the higher your building’s airtightness, the more air is processed through the heat recovery ventilation unit, increasing the amount of heat recovered.

Airtightness standards include:

10m³/hr/m² at a pressure of 50 Pascals (Pa) – UK Building Regulations (Part L).
8m³/hr/m² at a pressure of 50 Pascals (Pa) – Passivhaus Standard.

This measure reflects the volume of air (in m³) that leaks into or out of the building per hour, divided by the internal area (in m²) of the building’s envelope at 50 Pa.

While there is a significant difference between UK Building Regulations and Passivhaus standards, any building with an air permeability at or below 3m³/hr/m² at a pressure of 50 Pa is generally considered sufficient for MVHR to provide measurable energy savings.

For more information, please contact our team.

Air Conditioning Quality and Reliability

Was a bit concerned about how an AC installation would look on our detached house but I needn't had worried. Chill Air have made it look absolutely fine and we... read more

Keith Cordon
2nd September 2022
Amazing service! We are really happy to have the air con installed at our home, no more worries about heat waves, what a relief!! :) from the first home visit... read more

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29th June 2021
Ordered a couple of AC units for our home for a couple of bedrooms. The units are top notch, and the process from quote to finishing the install was awesome.... read more

Matthew Oliver
23rd July 2024
Everything went well from first contact to installation. All works completed in a single day and system is working well in this heat! Great service and highly recommended

GARETH Fox
13th July 2022
Great company with high quality service and good products. We had air con installed by ChillAir last year. Took 2 days to complete the installation - team were highly professional... read more

Allan Howatson
22nd August 2024
Had a couple of units fitted by Rich and Tom from Chill Air conditioning. They were awesome from start to finish. A very tidy job done professionally. ... read more

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23rd August 2024
Chill Air Conditioning installed an air conditioner for me last summer. Excellent advice and service. Can highly recommend.

Johanna Warren
13th April 2022
Very happy with the quality of work and the units installed are super quiet and easy to use. Chill Air are prepared to go that extra mile to make sure... read more

Carl Nicholson
30th January 2023
We had air conditioning unit fitted in our conservatory, which is 35 m2. Max gave consultation and advised to fit 7kw unit to the wall. Very pleased with fitting. Keeps... read more

Rimgaudas Lukas
10th July 2022
Fantastic service from the guys at Chill to meet our needs with the quote, made great recommendations on installation choices and then carried out the work efficiently, respectfully and professionally.... read more

RYAN WILLIS
27th May 2022

How can Chill Air Conditioning help?

Here at Chill Air Conditioning Ltd we specialise in air conditioning and heating services for commercial and domestic spaces such as offices, restaurants, home offices, bedrooms and even server rooms.

We’re also CHAS accredited and a REFCOM certified contractor. Our professional engineers are AOs City & Guilds qualified, which ensures that all of our services are carried out within minimal disruption and are completed at the highest standard.

If you would like to discuss our heat recovery system service further and believe you would benefit from having a heat recovery system installed in your home or commercial space, feel free to contact us by giving us a call on 0345 0179963 or email us on sales@chillairconditioning.co.uk.

We are fully qualified, accredited and certified

Contact us Today to Arrange your Heat Recovery System Installation

Feel free to contact our team for more information on our Heat Recovery Systems on 0345 0179963 or email us on sales@chillairconditioning.co.uk.

Contact us

For a free no obligation quote, contact us:

Chill Air Conditioning Ltd
Unit 1
Hermitage Way
Mansfield, Nottinghamshire
NG18 5ES
0345 017 9963
Call us 24/7
sales@chillairconditioning.co.uk

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Areas we cover

Nottingham, Derby, Mansfield, Chesterfield, Newark, Worksop, Loughborough, West Bridgford, Sheffield, Lincoln, Doncaster, Rotherham, Leicester, Nationwide.

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Chill Air Conditioning Limited is an Introducer Appointed Representative and provides a pure client Introduction through Improveasy Ltd., a company registered in England and Wales (Co. Reg. number 7807352). Registered Office: Station House, Stamford New Road, Altrincham, Cheshire, WA14 1EP. The firm is authorised and regulated by the Financial Conduct Authority (FRN 708623). The firm is authorised as a Broker, not a Lender and offers credit facilities from a panel of lenders. The credit is subject to application and status.