DucoBox Energy 400 Heat Recovery Unit with Humidity Sensor and Heater - DUCO-400-1zone


DucoBox Energy 400 Heat Recovery Unit with Humidity Sensor and Heater - DUCO-400-1zone


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€3,223.20 €2,686.00
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DucoBox Energy 400 Heat Recovery Unit with Humidity Sensor and Heater - DUCO-400-1zone

The DucoBox Energy 400 Heat Recovery unit is the quietest mechanical ventilation heat recovery unit in Europe! The DucoBox Energy 400 is intelligent, energy efficient and has a green A+ energy label.

Key Features

  • This unit is fitted with an intelligent pre-heater for frost protection
  • The quietest MVHR system in Europe
  • 1 zone system
  • Demand controlled heat recovery ventilation
  • Lowest supply sound level
  • Quiet, smart, and energy-efficient
  • Control day and night zones independently
  • Maximum efficiency heat exchanger
  • Intelligent preheater
  • Smart humidity measurement and pressure sensors
  • Favourable fan positioning
  • Optional CO2 and time control
  • Humidity Sensor

Technical Features

  • 50% faster configuration time
  • Integrated display
  • Smart communication via ModBus or LAN
  • Smartphone / tablet application control
  • Dimensions H x W x D – 740mm x 585mm x 957mm
  • Internal duct diameter - 160mm
  • External duct diameter - 190mm
  • Motors: The unit is equipped with an EC fan with backward curved blades.
  • Filtration: DucoBox Energy 400 requires 2 G4 filters that are quick and easy to replace, no extra tools are needed to be able to check or change filters. An optional F7 filter can be used.
  • Heat Exchanger: The heat exchanger is constructed of PET/polystyrene and allows for maximum heat recovery efficiency.

This unit has smart communication via Modbus or Lan interface. This unit may be controlled from your tablet or smart phone via a duco application allowing ease of use. Communication options include - RF Duco, Duco Wired, Switch contact Expandable with Communication Print: ModBus, PWM IN, OUT PWM, Switching contact (3x), Ethernet, Micro SD card slot.

The unit’s outer casing is constructed of coated sheet steel and the inside is constructed of high-quality sound absorbing materials expanded polypropylene (EPP) / PP / ABS. The DucoBox Energy is constructed with minimal components, creating ease of maintenance such as filter changes and cleaning.

DucoBox Energy is easy to install with a rear fitted mounting bracket and a 45° modular connection. The unit can be wall mounted as standard and may be floor mounted as an option with a mounting plinth. The unit features minimal parts making the unit each to service.


Height x Width x Depth – 740mm x 957mm x 585mm

Internal duct diameter - 160mm

External duct diameter - 190mm


Technical Specification

Technical Specification


DucoBox Energy 400 Heat Recovery Unit with Humidity Sensor

Heat Recovery efficiency %

Up to 96%

Airflow Rate Max m3/h

Up to 400

Airflow Rate @ -PA m3/h

 - @ 150Pa

Max dwelling size m2 @ .3 ACH 

Up to 250m2

Max dwelling size m2 @ .5 ACH

Up to 220m2

Max room extraction

Up to Kitchen plus 7 extraction points

ERP Rating


Specific fan power (lowest)


Dimensions W x H x D

740mm x 957mm x 585mm




G4 optional F7

Pre/ Post Heater

Intelligent Preheater

Summer Bypass

100% Modulating

Frost protection

Imbalance via proportional heater as an option

Sound level @3m db.(a)



Wall / Floor

Ductwork connections

4 top ductwork connections

Duct Diameter

Internal – 160mm

External – 190mm

Condensate Drain

Condensate drainage kit available separately


5 years

Country of manufacture


Heat exchanger


Digital Controller

Integrated display

Boost Switch control


Interactive App Control


Internal Humidity Control


Available room sensors

Integrated – pressure, temperature, onboard switch sensor & humidity (via optional box sensor)

Optional – CO2, humidity, external switch sensor





SAP Appendix Q


Fireplace mode


Alarm system integration


Passive House



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 £250 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 Partners

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

  • Fastway
  • DPD
  • Montgomery Transport
  • Liam Connolly Roadfreight Ltd
  • Europa Worldwide


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