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Xpelair Natural Air 180 Plus Heat Recovery Unit

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Xpelair Natural Air 180 Plus Heat Recovery Unit
Inc Vat £1,142.40 Excluding VAT £952.00

Xpelair Natural Air 180 Plus Heat Recovery Unit
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Xpelair Natural Air 180 Plus heat recovery unit – 93333AW

The Latest and most innovative heat recovery (MVHR) unit from Xpelair with summer bypass, integral humidity sensor and digital controller that is also passive house approved and built to German standards suitable for houses and apartments up to 150m2, floor area

Constant volume feature in this unit guarantees that the pre-set air flow rates are achieved independent of any resistance in the duct system or filter condition. 

Meeting the latest Building Regulations Document Part F 2010, the unit also complies with Energy Saving Trust Best Practice.

Optional complete system using Quiet-Vent Semi Rigid radial ducting that provides a quiet and professional installation complying with all building control requirements.

 Please note - You can purchase the heat recovery unit with or without the ductwork on this listing


  • Meets the latest building control regulations
  • Integral humidity sensor
  • Can be installed in a kitchen cupboard
  • Complete with Digital control panel
  • Passive house approved - Sap Appendix Q listed
  • Constant volume EC motors (Ghost air technology)
  • Up to 89% Heat recovery
  • 100%Summer Bypass 
  • Specific fan power as low as 0.68 wls
  • Fully serviceable unit with all parts accessible


2 x G3

The control panel tells users when the filter needs changing. It’s set for a 2 – 12-month cycle, at run-time not lapsed-time, so it’s unaffected if the unit is switched off. Making it cheaper to replace than other filters on the market, yet just as effective 


Supplied with the unit is a digital controller that can be used to pre-set the speeds to any required airflow within the performance range.

Boost can be achieved with a range of additional sensors or switches including momentary if used with a timer box

Although the Natural Air 180 is designed to work for continuous trouble-free operation, it can also be tailored to individual needs using the control panel. Energy can be conserved by switching to night-time mode and holiday mode, which employs trickle ventilation overnight, during holidays or when the property is vacant. The system can also be purged whenever required by using boost switching. Summer bypass control and the active humidity setting enable the unit to adjust to warmer temperatures or rising humidity. The system also performs diagnostics and displays advisory codes to help technicians maintain the unit.

Designed to help landlords and local authorities reduce damage to their properties through condensation and mould, the Natural Air 180 has an integral datalogger, recording its daily use. This provides instant information, showing whether the unit has been in use or a tenant has switched it off. This information is easy to access and can be taken directly from the unit whenever the owner visits the property.

Safe in the event of fire. - Automatic shutdown should fire alarm go off. Manual restart when alarm stops.

Integral Humidity Sensor

Unique, active humidistat reacts in real-time to gradual increases in humidity – perfect for even the smallest wet room. Flow rate is boosted only as needed, minimising energy costs and further reducing acoustic output. No more nuisance tripping as night-time temperatures drop. You set the humidity threshold to suit conditions – factory setting for boost is a 4% humidity rise in 5 minutes


Strong and compact EPP construction with a metal outer cover that allows for easy wall mounting in a wall cupboard or wall


The unit has 2 x low energy, high efficiency Constant volume EC motors (Ghost air technology)

The Natural Air 180 uses Intelligent Adapt flow Sensing to deliver constant volume performance. The motor is constantly assessing the performance of the impeller and, when there is a consistent change in airflow, brought about by reduced efficiency or by a strong wind applying back pressure, the motor adjusts the speed of the fan to maintain a constant volume of extracted air.


Installation is possible inside a 600mm wide kitchen cupboard

The Condensate drain is fitted to the bottom of the unit, we recommend that a flexible connection is fitted between the drain and overflow pipe

Electrical and control connections are made on the inside of unit

Dual condensate drains capture additional moisture generated in climate controlled buildings


In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation.

Benefits of working with BPC Ventilation

  • Authorised Xpelair distributors
  • In-House design service
  • In-House Technical support
  • Specialists in easy to install DIY systems
  • 1000s of products in stock in our own warehouse
  • Large showroom with working units on display
  • Installer network throughout the UK and Ireland
  • All systems comply to all the latest building control regulations 
  • 0% Finance available 
Ducting Kits

Ducting kits

Xpelair N/A 180 using Quiet-Vent Semi Rigid Radial Ducting Kits

A heat recovery ventilation system is only as good as the ducting used

Following years of heat recovery design and installation BPC Ventilation are now able to provide high quality kits that will provide a quiet and efficient system exceeding building control regulations and are suitable for any competent person to successfully install

The Quiet-Vent radial semi rigid system combines the performance benefits of rigid duct and the installation benefits of flexible duct by treating each room individually with a dedicated 75mm duct run from two manifolds (distribution box) for supply and extract air at the heat recovery unit

Quiet-Vent Semi Rigid Duct is a perfect choice for MVHR Heat Recovery System Installations as it provides huge performance benefits whilst dramatically reducing installation time and installation risk on-site

Key Features

  • The pipes have a smooth bore that is hygienic, anti-static, non-porous and odourless which inhibits mould and bacteria growth with low air-flow resistance and has high sound absorption.
  • The round 75mm pipe is supplied in 50-meter-long rolls and takes more than 13 Kilonewton’s per square metre of pressure to crush it and can even be buried in up to 3 metres of concrete.
  • No noise transfer (talking, music etc) between rooms (As required and stated in the 2010 Domestic Ventilation Compliance Guide).
  • No noise generated by high volumes of air being pushed or sucked down ducting (common with branch systems).
  • No joins in ducting so it cannot become dislodged if knocked or disturbed e.g. in loft spaces.
  • 70% Quicker and easier to install compared to traditional branch systems.
  • Metal distribution boxes – very robust and durable, various sizes.
  • Can easily overcome site obstacles and can be worked through around joists with ease
  • Fully cleanable and one of the only systems on the market that is - making it ideal for Heat Recovery System installations as it offers long-term Guaranteed Installed Performance
  • Superior 100% airtightness as there is up to 85% less joins and any fittings use rubber seals 
  • Ideal for metal web and engineer joists
  • SAP Appendix Q and Passive House Approved (classed as solid rigid on SAP)

Design and Supply

As leading heat recovery specialists our in-house designers can provide a comprehensive and bespoke design backed up with our technical experts that can answer any queries you may have,

Free delivery is included to any mainland UK or ROI address with this kit and with thousands of products in stock we are one of the few specialists that can provide quick or priority dispatch to any location using professional logistics companies, we are able to deliver to any other location on request,

If required all products in the kits can be changed or altered to suit your specific needs before dispatch and if you do require extra materials we will supply these to you at the same highly discounted rates,

Any products not required can be returned for a refund (excluding return delivery cost)

Installation and commissioning

All systems on completion of the installation require commissioning to insure it is working as intended, BPC have a network of commissioning engineers or we can supply you with a DIY air meter including a commissioning guide

The systems have been painstaking designed to be suitable for any competent person to install but we also have a large network of installers if required throughout the UK and Ireland if required

How does a Radial system work?

Radial ducting is the latest innovation on ventilation systems and can provide a quieter and more efficient ventilation system compared to rigid ductwork.

Radial Ducting is a system of individual smooth bore pipes which are crushproof, semi flexible with zero air loss. The pipes have an anti-static and antibacterial lining which individually connects each room to a manifold

The manifold takes mass airflow directly from the MVHR Heat Recovery Unit and allows lower rates to pass through to each individual room run eliminating noise transfer and increasing the efficiency of the heat recovery unit

The radial ducting is designed to be installed below the loft insulation to provide a superior heat retention over pre-insulated solid rigid above the loft insulation

Radial semi rigid ducting is suitable for any type of property; including timber framed houses, passive house approval homes and can be used in areas with limited access.

The radial semi rigid ducting is available in both circular (75mm or 90mm) and oval (51mmx114mm) fittings.

Alternative duct options

We can also stock and supply Solid Rigid PVC, Galvanised Steel and Thermal EPP (foam) ducting if preferred

Technical Specification

Technical Specification

The Xpelair NAtural Air 180 has 3 models available 

Natural Air 180 - 93256AW - standard unit

Natural Air 180 Plus - 93333AW - with external sensor board (recommended)

Natural Air 180 PH - 93319AW - Passive house unit with sensor board and heater connection socketsOptional


Xpelair Natural Air 180 Plus



Heat Recovery efficiency %


Digital Controller


Boost Switch control


Interactive control


Humidity control

Internal sensor

Airflow rate Max m3/h


Airflow rate @ 100Pa m3/h


Max dwelling size M2

150 (uk)

Max room extraction

Kitchen plus 4 extraction points

Specific fan power (lowest)


Dimensions W x H x D (mm)

552 x 609 x 285




Yes 2 x G4

Pre/ Post Heater


Summer Bypass 


Frost protection 


Sound level @3m db.(a)



Floor / wall

Ductwork connections


Duct Diameter

4 x125mm

Condensate drain



2 year

Country of manufacture


Heat exchanger

Counterflow heat exchanger (PVC)

Available room sensors

Humidity, Timer, Pir





SAP Appendix Q


Fireplace mode


Alarm system integration


Passive House


ERP rating




Download Documentation
Natural Air 180 Catalogue
Natural Air 180 Installation Manual
Natural Air 180 Timer Wiring Diagram
Further Information

Further Information

Semi Rigid Radial Duct Kit Contents

DescriptionPart Number4 Pt 5 Pt 6 Pt 7 Pt 8 Pt 9 Pt 10 Pt
125mm Airflow pvc extract valve900003402233444
125mm Airflow pvc supply valve900003392334456
125mm pipework x 1 meterP125-16666666
125mm pipe connectorC1252222222
125mm 90' bendsB9012510101010101010
150mm to 125mm reducer pvcR150125P2222222
Quiet-Vent 125mm x 500mm Flexi insulated sound attenuatorQV125F-SILENCER1111111
Metre foil backed glass fibre insulationINS223333333
125mm exterior grille S/steel louvered CowlSSC1252222222
10m roll 125mm insulated flexible ductingIFD1251111111
Roll silver foil tape 75mmST751111111
Roll builders strap 10 meterBS501111111
Sealant - grey ductSE3801111111
Cable ties 550mm (Pack of 10)CT5501111111
Pro 75mm x 50 Metre Antibacterial Radial pipe (Quiet-Vent Pro Red) (75mm)QV75PR-Pro1112233
Pro 90` Plenum Round Pipe  (Quiet-vent) (75mm)QVPLEN90-Pro45678910
Pro Sealing Ring (pack of 10) (75mm)QV75SR- Pro2223344
NEW QV 6 Pt Top Entry Distribution box 150 spigot (75mm)QV75-06150TE2222   
NEW QV 10 Pt Top Entry Distribution box 150 spigot (75mm)QV75-10150TE    222


World Wide Delivery Service

BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated customer service team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.

Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.

Free Delivery

We offer free delivery on any order over £200 to any mainland UK or Ireland address

Worldwide Delivery

Worldwide delivery is possible on almost all our products at very low delivery costs, Delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance

Please contact us to confirm shipping cost and availability 

End-To-End Support

Delivery is available within 48 hrs in most cases for hundreds of stock items. Our customer service teams always contact customers to confirm when delivery is required and to check that the goods can be received. Any problem from the customer’s end is accommodated and arrangements changed.

These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.

We deliver on Service

  • Key components such as Ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.
  • All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.
  • All deliveries co-ordinated to suit your specific requirements and construction programme.
  • Specialist team fully conversant with all documentation requirements for a smooth order and delivery service.

Delivery Costs

Please click here to view delivery costs

Delivery Partners

We only use the couriers with the highest standard of service that include

  • DPD
  • Parcelforce
  • Pallet Network
  • Speedy freight

Delivery Serivices