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Vent Axia Sentinel Kinetic High Flow Heat Recovery Unit

Vent Axia Sentinel Kinetic High Flow Heat Recovery Unit
Inc Vat €2,575.32 Excluding VAT €2,146.10

Vent Axia Sentinel Kinetic High Flow Heat Recovery Unit
Please note - left hand models are available but as these are non-stock items, they may have a longer delivery time

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Vent Axia Sentinel Kinetic High Flow Heat Recovery Unit – 408449 / 408451

Vent Axia Lo-Carbon Sentinel Kinetic High Flow is a heat recovery unit with the highest high performance, it is suitable for large houses, student accommodation and small commercial applications, this top-quality unit has every conceivable option for control with proven durability and performance

Lo-Carbon Sentinel Kinetic High Flow units are suitable for house sizes up to 350m2, they meet the latest requirements of Building Regulations ADF and ADL for whole house system ventilation

This unit is available with an optional Quiet-Vent Semi Rigid radial ducting kit, providing 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

This heat recovery unit and Standard semi rigid radial ducting kit meets the highest and latest Building Regulation requirements and are suitable for newly constructed homes and renovation projects

Please call our sales team on 028 2827 5150 / +353 1526 7452 if you would like more information about upgrading your kit


  • Vent Axia Heat recovery unit
  • Suitable for house sizes up to 350 m2
  • Heat Recovery up to 91%
  • Extra low energy use
  • Mechanical summer by-pass
  • Internal humidity sensor
  • Digital control
  • Vertical or horizontal connections
  • Left or right-hand configuration
  • Dimensions635mm x 785mm x 550mm (H x L x W)
  • Duct diameter: 180mm / 200mm 
  • Weight: 34kg
  • 5 Year warranty


Vent Axia Sentinel Kinetic High Flow requires 2 x G4 filters, and an optional M5 pollen intake filter


The Lo-Carbon Sentinel Kinetic High Flow heat recovery units have 3 fully adjustable speeds and a purge setting (maximum flow). A digital controller is provided with the unit, it can be used to pre-set the speeds to any required airflow within the performance range

Boost can be achieved with almost any type of sensor or switch including momentary 

Integral Humidity Sensor

The integral humidity sensor increases speed in proportion to relative humidity levels, saving energy and reducing noise. The sensor reacts even to small but rapid increases in the humidity of a room, it reacts even if the normal trigger threshold is not reaches. This feature ensures that your home is adequately ventilated, even for the smallest wet room. The night time relative humidity setback feature suppresses nuisance tripping as the humidity gradually increases with falling temperature


The inner body is constructed of EPP and the outer enclosure is constructed of PVC


The unit has 2 x low energy, high efficiency EC/DC motors

Spigot Options - The combination of spigot options allows installation in confined locations. If vertical and horizontal connection is required on the same outlet/inlet, additional spigots can be supplied. Spigots may be re-positioned to give horizontal connections or a combination of both horizontal and vertical connections.

The condensate drain can be taken out through the back, side or bottom of the unit. The final condensate connection is made using the fitting supplied, it can be completed after installation and is made outside the unit


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

Benefits of working with BPC Ventilation

  • Number 1 leading MVHR and ventilation system specialists
  • Large range of systems for domestic and commercial applications
  • Authorised Vent-Axia distributors
  • In-house design service
  • Full technical support
  • 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
Ducting Kits

Ducting kits

Quiet-Vent Heat Recovery Kit Material List

Ducting Kit Contents (180mm)Part Number12 Point13 Point14 Point15 Point16 Point17 Point18 Point
125mm metal extract valveMW1245556677
125mm metal supply valveMW1257899101011
180mm x 2 meter metal ductP180M-24444444
180mm B90 vent pressed bendB90180M10101010101010
180mm NP vent male couplingC180MM8888888
Metre foil backed glass fibre insulationINS224444444
180mm exterior grille s/steel louvered cowl90412272222222

Standard 75mm x 50 meter regular radial duct (75mm)

90° Plenum with additional 350mm round pipe (Quiet-Vent)QV75PLEN9012131415161718
Standard sealing ring (pack of 10) (75mm)RL753333444
QV 15 pt rear entry distribution box 150 spigot (75mm)QV75-15180RE2222222
Technical Specification

Technical Specification

Vent-Axia Kinetic High Flow Technical Data


Vent Axia Kinetic High Flow

Heat Recovery efficiency %


Digital Controller


Boost Switch control

Yes - Momentary

Interactive control


Humidity control

Internal and optional external sensor

Airflow rate Max m3/h


Airflow rate @ 100Pa m3/h


Max dwelling size M2

350 (uk)

Max room extraction

Kitchen plus 8 extraction points

Specific fan power (lowest)


Dimensions W x H x D (mm)

785 x 635 x 550




Yes 2 x G4 (optional 1 x M5)

Summer Bypass 


Frost protection 


Sound level @3m db.(a)



wall - floor

Ductwork connections

Top or side

Duct Diameter

4 x180mm

Condensate drain




Country of manufacture


Heat exchanger

Counterflow heat exchanger (PVC)

Available room sensors

Humidity, Timer, Pir


Yes - BMS

SAP Appendix Q


Fireplace mode


Alarm system integration


Passive House


ERP rating



RHS -408449   LHS- 408451

Download Documentation
Heat Recovery
Installation Manual
Product Catalogue
MVHR Buyers Guide
Further Information

Further Information

How to install a Vent Axia Kinetic Highflow

Vent Axia Highflow Wiring Requirements

  • 3amp switched spur beside unit
  • Digital controller- Comes complete with 15 meter of 6 core alarm cable with a RJ45 connection
  • Optional boost switch - 3 core cable from recessed single box to unit(recommended if bathrooms are further than 10 meter 
  • Further optional include - light switch, vent-wise controller, 


  • The low and high speed levels can be adjusted using the digital control
  • further controls include- night time set speed set back - timed boost- sensor control - humidity sensor control - tempature control - summer bypass control - fault indication - filter indicator

Installation Guide

Vent Axia Highflow 1st Fix

  1. Position vent axia Highflow unit proverbially on a wall or vertical timber frame with provided wall bracket
  2. It is possible to take pipes from either the top of side of unit
  3. Duct connections RHS unit -rear left is extract from house-front left is supply air to living areas- rear right is air intake from outside - front right is air to outside
  4. Install wiring for controllers (see bottom of page for further details)
  5. Install condensation drain from unit to internal or external drain
  6. Install wall /Soffit vents or roof vents (Minimum 1.5 meter apart) Pipes are 180mm diameter
  7. Position distribution boxes in the chosen location (proverbially in a central location minimizing duct lengths )
  8. Install silencer (if specified) to air supply distribution box
  9. Install solid rigid ductwork and between distribution boxes and MVHR unit, (If possible allow for insulated flexible ductwork for final connections of MVHR unit )
  10. Install radial pipe into the distribution box ,
  11. Cut to length and install pipe into ceiling plenum, (insure you install rubber seal onto pipe) secure pipe in place with fixing band or pipe clips

Warning! There can be either one or two pipes going from the distribution box to the plenum depending on the required airflow , Always check plan that will indicate 1 or 2 pipes Install insulated rigid or insulated flexible ductwork to external vents Seal all open pipes to prevent debris and moisture ingress


Vent Axia Highflow 2nd fix

  1. Trim ceiling Plenums to height of plasterboard (Easier to do before plastering ceilings)
  2. Install air valves to plenums (slightly open valve by two turns)
  3. Install all controllers
  4. Check that condensation drain has been fitted
  5. Switch unit on and follow the set up procedures
  6. Check air flow rates and commission system

Initial Design -

Pre designed plan - Please follow the plan ensuring the correct number of pipes to each area - Please note the plan is only a guide and you may have to reroute pipe work differently and reposition valves to suit layout of rooms

No Plan - If a design is not possible due to renovation, Retrofit or properties with multiple obstacles simply follow the listed recommendations

We would recommend that you

  • Install 2 x pipes from the distribution box to the room air plenum if air flow requirement exceed 10 L/s or if length over 15 meters  
  • Install 2 x pipes from the distribution box to the air extract plenum in the main shower rooms and Kitchen
  • All other areas only require a single pipe from the distribution box to the room air plenum
  • Radial ductwork is suitable to be fitted below your loft insulation providing superior heat retention Insulate any ductwork or Manifold/ Distribution boxes with a minimum of 25mm thermal duct wrap that go above insulation in unheated attic spaces
  • Slim-line manifolds are suitable for installation to concrete ceilings and only require a 100mm service void
  • Position supply plenums approx. 500mm from corner of wall (avoid areas above beds and wardrobes)
  • Position extraction plenums to outside of showers and above kitchen sink (not cooker)
  • Only extract from a room with a open appliance (stove) if there is a supply with equal or higher airflow

Accessories Product



World Wide Delivery Service

BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch 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 low 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 48-72 hrs, depending on method of transport, for hundreds of stock items.

Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.

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.


Delivery Costs

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Delivery Partners

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

  • DPD
  • Parcelforce
  • Liam Connolly (Roadfreight) Ltd
  • Importwise
  • Speedy Freight


Delivery Partners