MVHR buying guide
Updated: 22 October 2026
You open amazon.co.uk for heat recovery ventilation and the first page mixes a through-wall ceramic fan, a loft box and a whole-house title with no duct kit listed. An MVHR buying guide is the order of checks before any recovery percentage: what the listing is, which airflow figure you can trust, and whether the controller and ducts are in the box. The nine rows sit on the [MVHR comparison](/hub/heating/mvhr). Peter F. checked those listings. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.
You open amazon.co.uk for heat recovery ventilation and the first page mixes a through-wall ceramic fan, a loft box and a whole-house title with no duct kit listed.
You open amazon.co.uk for heat recovery ventilation and the first page mixes a through-wall ceramic fan, a loft box and a whole-house title with no duct kit listed. An MVHR buying guide is the order of checks before any recovery percentage: what the listing is, which airflow figure you can trust, and whether the controller and ducts are in the box. The nine rows sit on the MVHR comparison. Peter F. checked those listings. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | System type | Airflow stated | In the box | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  LIRAST LIRAST EER100 white | Single-room, through-wall | Not stated | Recuperator | 8.5 | about £123.12 | View offer |
| Best value |  EUROPLAST EUROPLAST EER100 | Single-room, through-wall | 29 m³/h | Wall switch | 8.0 | about £189.90 | View offer |
 Vent-Axia Vent-Axia HR100R | Small ducted loft unit | 18 l/s FID | Condensate to plan | 6.8 | about £319.00 | View offer |
On this page
Two families on one shelf
Mechanical ventilation with heat recovery on one shelf is two product classes. A decentralised unit pushes and pulls through a wall sleeve, often reversing about every 70 seconds through a ceramic core. A ducted unit needs pipes, terminals, condensate and insulation.
Six rows are wall fans. Vent-Axia HR100R is a small ducted loft unit. The fans4less CFLO250 uses whole-house wording and lists no duct kit. Swiftair HRU100 is a ducted kit. One external wall means the wall-fan column. A loft and ceiling terminals mean the ducted column. The Centre for Sustainable Energy ties savings for this system type to relatively airtight homes.
Airflow you will actually run
EUROPLAST states 29 m³/h. LINGGONGAIR states 60 m³/h. Vent-Axia HR100R states 18 l/s FID. Swiftair’s title gives 100 m³/h. The fans4less title prints 550 m³/h. The LIRAST pair and Envirovoid do not state a credible airflow. Envirovoid’s capacity field prints 30 cubic centimetres. Brookvent prints both 3/4/7 l/s and 17 l/s, so neither figure is settled until a manufacturer sheet agrees.
Approved Document F, Volume 1 (2021 edition, England) gives continuous high rates of 8 l/s for a bathroom and 13 l/s for a kitchen. Those rates describe a designed dwelling, not a fan bought without commissioning. Compare a stated figure with the room behind the grille.
Noise, wall depth and the box
Brookvent prints 5 dB beside conflicting airflow, so ignore that cell. The white LIRAST prints 27/32 dB(A) at 3 m and a field of 44 dB, and buyers mention loud kitchen-diners. EUROPLAST prints 35 dB, and office installs are described as louder. About 25 dB(A) in a bedroom is a Passivhaus Trust design aim, not a legal pass mark here.
LIRAST’s duct is 300–555 mm. Under about 300 mm was easy to miss. LINGGONGAIR’s depth is 39.9 cm. Envirovoid allows a 100–160 mm core. EUROPLAST includes a wall switch. Brookvent includes one unit, and reviews say the switch is extra. LINGGONGAIR and Envirovoid list a remote. EUROPLAST also prints Type G and Schuko.
Rules without a commissioned listing
Approved Document F is England’s ventilation book. Approved Document P covers fixed electrics. Notifiable work needs measured airflow, and BEAMA’s commissioning sheet is the usual pattern. An amazon.co.uk order does not commission the house. None of these listings is treated as meeting Part F for a named home.
Do not seal every trickle vent because a fan arrived. Most listings state no IP rating. The 2026 edition of Approved Document F takes effect on 24 March 2027. Scotland, Wales and Northern Ireland use their own books.
Before you open a product tab
If you have one external wall, measure it and stay with a decentralised row. If the unit has to live in a loft, budget for ducts, terminals and a condensate drain. If airflow is missing, or printed twice, do not use a recovery percentage as the rate. The sleeve-versus-loft split is on single-room and whole-house MVHR.
Common questions
Do I need trickle vents if I add MVHR?
Not automatically. A wall fan does not replace a background-ventilator strategy on its own. Airtightness and the vents you already have belong in the same conversation, especially if you later add ducts. Approved Document F, and your assessor’s view, beat a single amazon question. In an older home, existing trickle vents and extract fans can still be doing part of the job.
Does up to 85% recovery cut my heating bill by that much?
No. Up to 85%, up to 82% or up to 90% is a heat-exchanger claim, not a bill saving. Homes also lose heat through the fabric and through draughts. The Centre for Sustainable Energy discusses about 10–30% for this system type in suitable airtight homes. That is not a result for these shelf prices.
Are HEPA claims on these listings credible?
Treat an unnamed HEPA line as marketing until a filter standard, such as an ISO 16890 or EN 1822 class, is printed on the unit or the datasheet. Envirovoid claims HEPA and 99.7% of pollen and PM2.5, and no standard number is printed. Single-room ceramic fans more often use coarse or fine dust filters. Two filters on a LIRAST listing do not state a grade.
When is Part F commissioning required?
When the work is notifiable, or when the specification demands measured airflow. A retail delivery is not a commissioning sheet. You need a competent person when several wet rooms and bedrooms must be balanced and the installed rates proved. New-build fans are commissioned and notified. Buying one of these nine units does not sign Part F off for your house.
Why do two noise figures on one page disagree?
Seller fields can conflict. A 5 dB line beside two different airflow figures is not a result you should design to. Prefer the manual, and prefer what buyers say about a bedroom against a kitchen-diner. The click when an alternate-flow fan reverses, about every 60 to 70 seconds, is a separate point from the decibel cell.
What should I do if airflow is blank?
Weigh the room, the review themes and whether you need a continuous wet-room rate. Do not fill the gap with a recovery percentage. If the manual lists more than one speed, read boost against the speed you will leave running. Brookvent’s two airflow lines are the worked example: until they agree, neither is the rate.
Related pages
Sources
Public UK sources named below. amazon.co.uk prices, stars and review counts on these nine listings were taken from the listing files read on 20 October 2026. Page updated October 2026.
- Approved Document F, Volume 1 (2021 edition) (retrieved 20 October 2026)
- GOV.UK ventilation: Approved Document F (retrieved 20 October 2026)
- Centre for Sustainable Energy: mechanical ventilation with heat recovery (retrieved 20 October 2026)
- NHIC: why ventilation is important (retrieved 20 October 2026)
- Passivhaus Trust MVHR good practice guide (2018) (retrieved 20 October 2026)
- Passivhaus Trust: the case for MVHR (retrieved 20 October 2026)
- BEAMA Part F ventilation commissioning sheet (retrieved 20 October 2026)
- Approved Document P (retrieved 20 October 2026)