Mechanical Ventilation Heat Recovery (MVHR)

Supply and Installation

Thanks to modern building regulations, homes are increasingly more insulated and airtight. While this is good news in terms of comfort and energy efficiency, poor ventilation can sometimes be an issue.

Natural ventilation methods, i.e. those that rely on wind speeds, such as windows, fans and trickle vents, can result in drastic heat loss. Not good news right now as we all strive to be more energy efficient.

Yet, buildings without adequate ventilation can suffer from poor indoor air quality and damp, affecting the health and wellbeing of its occupants. Fortunately, Mechanical Ventilation with Heat Recovery offers an ideal solution.

A Mechanical Ventilation Heat Recovery (MVHR) system is:

If you have any questions about how MVHR systems work and whether one would be suitable for your home or business, please contact Cinergi.

WHAT ARE MECHANICAL VENTILATION HEAT RECOVERY SYSTEMS?

An MVHR system – sometimes called a domestic heat exchanger or heat recovery ventilation system (HRV) – is a whole-house ventilation system. It extracts polluted air from a property and provides a constant source of fresh air.

Crucially, it uses the heat from the extracted air to warm the air intake from outside, resulting in minimum waste. It can recover up to a staggering 90% of a property’s heat, making it one of the most energy-efficient renewable energy systems on the market today.

How does mechanical ventilation with heat recovery work?

A heat recovery ventilation system performs three essential functions:

  1. It extracts stale and polluted air from wet rooms, such as bathrooms and kitchens
  2. It recovers heat from the extracted air to warm/cool incoming air from outside via a heat exchanger
  3. It supplies the warm/cool filtered air to living areas

MVHR units are usually installed on an external wall and connected to a duct system.

What homes can benefit from mechanical ventilation heat recovery systems?

MVHRs are ideal for homes in areas with lots of pollution or noise. Plus, if you’ve got a big house or multiple floors, an MVHR system ensures every corner stays fresh. Older homes can also benefit, especially those built to outdated building regulations and with air-tight construction methods.

What are the benefits of heat recovery ventilation systems?

A mechanical ventilation heat recovery system offers many benefits in terms of comfort, health, efficiency and reduced carbon emissions.

MHVR can:

  • maintain a constant internal temperature in either cool or warm weather
  • provide constant and fresh filtered air to improve indoor air quality
  • increase energy efficiency compared to natural ventilation methods
  • reduce drastic CO2 spikes, thus reducing your carbon footprint
  • reduce bad odours and smells
  • reduce excess moisture, therefore reducing the risk of damp and mould

Why is MVHR better than conventional ventilation?

MVHR works much more efficiently than conventional ventilation systems, such as trickle vents. These uncontrolled ventilation methods work by removing stale air from a property and replacing it with fresh air from the outside. While this is fine in warmer months, during winter, the heat from inside the property is lost and replaced by colder air from outside.

Not only does this reduce comfort levels, it wastes a lot of energy. The energy loss can represent up to 30% of the heat demand for a property.

MVHR systems exchange 90% of the heat energy from inside the property with the incoming air from outside via a heat exchanger.

Our MVHR installation service

From discovery to installation and beyond, you can rely on Cinergi to deliver a Mechanical Ventilation with Heat Recovery (MVHR) that meets your needs.

Consultation and discovery: We will conduct a site visit to assess your property’s layout, heating system, ventilation and insulation. We’ll also discuss your energy and ventilation requirements to ensure our recommendations are accurate.

Finding the right MVHR System for you: Based on our findings, we’ll present the MVHR solutions to best suit your needs and budget. As an independent installer, you can rely on our impartial advice.

Efficient installation: Our skilled, in-house engineers will arrive fully prepared to carry out the installation with minimum disruption. For domestic systems, installation should take no longer than 2-5 days.

Ongoing care and maintenance: We offer a care and maintenance plan to ensure your MVHR system operates at peak performance for years to come.

How do you install MVHR systems?

MVHR systems are powered from an electrical unit connected to a duct system. Cinergi provides two MVHR installation options – solid ductwork or semi-flexible ductwork. Semi-flexible is becoming much more popular these days as it drastically reduces the amount of time spent on installation. It also makes bypassing obstacles such as steelwork or staircases much easier.

Where can a MVHR unit be installed?

A MVHR unit is typically installed in a plant room/utility room, loft space or even garage. There are two connections to the outside of the building, one for exhaust air and one for supply air. These are typically installed through an external wall or gable end, but can be installed via special tile vents in the roof.

The location of the MVHR is typically governed by the overall space in the property and the feasibility of installing ductwork from this location (i.e. the ease of passing obstacles such as steelwork, structural formations or staircases).

Do we install MVHR systems near you?

Cinergi is a trusted installer of Mechanical ventilation heat recovery systems across the South Coast of England.

Hampshire

Cinergi proudly installs MVHR systems across Hampshire, ensuring homes in Southampton, Portsmouth, and beyond enjoy superior indoor air quality and energy efficiency.

West Sussex

From Chichester to Crawley, Cinergi offers expert MVHR system installations throughout West Sussex, providing residents with optimal ventilation solutions for their homes.

Wiltshire

Cinergi serves homeowners in Wiltshire, including Salisbury and Swindon, delivering high-quality MVHR system installations tailored to individual property requirements.

Dorset

With installations in Bournemouth, Poole, and beyond, Cinergi brings top-notch MVHR systems to homes across Dorset, enhancing indoor air quality and comfort for residents.

Somerset

Cinergi extends its expertise in MVHR system installations to Somerset, serving communities in Bath, Taunton, and other areas with reliable and efficient ventilation solutions.

 

Frequently Asked Questions

MVHR systems are powered by an electrical unit connected to a duct system. Cinergi provides two MVHR installation options – solid ductwork or semi-flexible ductwork. Semi-flexible is becoming much more popular these days as it drastically reduces the amount of time spent on installation. It also makes bypassing obstacles such as steelwork or staircases much easier.

An MVHR unit is typically installed in a plant room/utility room, loft space or even garage. There are two connections to the outside of the building, one for exhaust air and one for supply air. These are typically installed through an external wall or gable end but can be installed via special tile vents in the roof.

 

The location of the MVHR is typically governed by the overall space in the property and the feasibility of installing ductwork from this location (i.e. the ease of passing obstacles such as steelwork, structural formations or staircases).

MVHR uses very minimal power compared to conventional ventilation methods. Systems are typically wired off a standard 13A fused spur and use a similar amount of energy to a low-energy lightbulb in your home. The typical running cost can be as little as 10p per day.

Absolutely - this is when it is most effective, as it reuses the heat energy from within the property rather than wasting it.

Most MVHR systems have a bypass mode for use in warmer months when the recovered heat from stale air is not required. As the name suggests, the extracted air simply bypasses the heat exchanger. This enables it to be replaced with fresher air from the outside, providing a natural cooling effect within the property.

MVHR can recycle around 80%-90% of the heat within your property and is, therefore, much more efficient than natural or background ventilation systems or trickle vents.

MVHR can be installed in a wide range of commercial properties, and it offers many benefits. Following the pandemic, constant ventilation is of utmost importance in public buildings. MVHR also reduces a building's heating and cooling demands, so it offers valuable savings on energy bills.

Yes, combining these two systems can offer a very efficient solution for both ventilation and heating/cooling needs in a home.

 

The MVHR system ensures efficient ventilation by continuously supplying fresh air while recovering heat from outgoing air, which complements the operation of the heat pump. While the heat pump primarily focuses on providing heating or cooling, depending on the season, the MVHR system helps to maintain indoor air quality and reduce energy consumption by pre-warming or pre-cooling incoming air.

Brands we supply and install

Cinergi is an independent energy supplier and installer. We can give you impartial advice on which MVHR system is best for your property.

Here are a few of our most popular systems:

Vent Axia Logo
altherma daikin logo

SPEAK TO US ABOUT

MVHR Systems

If you want to know more you can get in touch with us by calling 0800 321 3142. Alternatively, please click the button to arrange a callback from one of our team at a time that suits you.

Why choose cinergi

As your MVHR Installer?

40 Years Experience

Cinergi has over 40 years of experience of providing mechanical and electrical solutions to both domestic and commercial properties. We are keen advocates of renewable energy sources and can deliver a fully integrated system including a heat pump and solar panels, or a stand-alone MVHR system.

Professionally accredited installers

Cinergi is unique in that we are accredited to install Gas, LPG & Oil boilers, as well as air source heat pumps. As such, we are in a unique position to offer the wide range of heating solutions for your particular property and budget. Want a price for an air source heat pump and a replacement oil boiler? No problem, we can provide you with independent advice on the options available to you.

We service a wide area

We are ideally based in Southampton, with excellent transport routes all across the South. We serve homes and businesses in Hampshire, Dorset, West Sussex, Wiltshire, Surrey, Oxfordshire and Berkshire. Further afield? Not a problem, our engineers are willing to travel.

Skilled in-house installers & engineers

We are a close-knit, family-run business. We have high standards and expect our engineers to share our values. As a result, we do not use external sub-contractors. All of our air source heat pump installations are undertaken by trusted, in-house engineers.

We care about our customers

We love what we do and want our customers to love the results of our work. Our enduring success is down to our dedication to exceptional service. This can be evidenced in our customer reviews, of which we are very proud to share.

Cinergi Care MVHR installers

Customer Reviews