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DucoBox Energy 325 - 2 Zone Heat Recovery Unit with Humidity Sensor

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DucoBox Energy 325 - 2 Zone Heat Recovery Unit with Humidity Sensor
€2,913.77 including VAT Excluding VAT €2,428.14
DucoBox Energy 325 - 2 Zone Heat Recovery Unit with Humidity Sensor


DucoBox Energy 325 - 2 Zone Heat Recovery Unit with Humidity Sensor

The DucoBox Energy Heat Recovery unit is the quietest mechanical ventilation heat recovery unit in Europe! DucoBox Energy is a demand-controlled ventilation system with a unique 2 zone control system which allows you control day and night zones separately. The DucoBox Energy is intelligent, energy efficient and has a green A+ energy label.

Key Features

  • The quietest MVHR system in Europe
  • Unique 2 Zone System
  • Demand controlled heat recovery ventilation
  • Control day and night zones independently
  • Demand controlled heat recovery ventilation
  • Lowest supply sound level
  • Quiet, smart and energy-efficient
  • Maximum efficiency heat exchanger
  • Intelligent preheater
  • Smart humidity measurement and pressure sensors
  • Favourable fan positioning
  • CO2 and time control
  • Humidty sensor
  • 50% faster configuration time
  • Integrated display
  • Smart communication via ModBus or LAN
  • Smartphone / tablet application control
  • Internal duct diameter - 160mm
  • External duct diameter - 190mm
  • Dimensions H x W x D – 740mm x 585mm x 957mm

Two-Zone Ventilation System

DucoBox Energy’s intelligent 2-zone control system uses CO2 sensors to closely monitor the occupant’s movements to enable where, when and how much ventilation is required. The 2 zones are controlled separately with a built-in valve that enables the EC fan consumption to be reduced, this ensures maximum energy-efficiency.

This system allows you to control day and night zones separately. This system enables:

-         Heat Recovery proving great efficiency

-         Lower EC fan consumption

-         Maximum energy performance

DucoBox Energy units require 2 G4 filters, DucoBox Energy filters are quick and easy to replace and required no extra tools for checking or changing 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 can be controlled from your tablet or smart phone through a duco application allowing ease of use. Options for communication 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 interior is constructed of high-quality sound absorbing materials expanded polypropylene (EPP) / PP / ABS. The DucoBox Energy 325 is constructed of minimal components, creating ease of maintenance such as filter changes and cleaning.

DucoBox Energy heat recovery units are equipped with an EC fan with backward curved blades. The integrated 2-zone control, favourable fan positioning and high-grade absorbent materials allow for a quiet system.

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


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

Internal duct diameter - 160mm

External duct diameter - 190mm

Benefits of working with BPC Ventilation

  • Number 1 leading MVHR and ventilation system specialists
  • Large range of systems for domestic and commercial applications
  • Authorised Duco 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
Technical Specification

Technical Specification

Technical Specification


DucoBox Energy 325 - 2 Zone Heat Recovery Unit with Humidity Sensor

Heat Recovery efficiency %

Up to 87%

Airflow Rate Max m3/h

Up to 325

Airflow Rate @ -PA m3/h

 - @ 150Pa

Max dwelling size m2 @ .3 ACH 

Up to 200m2

Max dwelling size m2 @ .5 ACH

Up to 180m2

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

Optional Intelligent Preheater

Summer Bypass

100% Modulating

Frost protection

Imbalance via proportional heater as an option

Sound level @3m db.(a)



Wall / Floor

Ductwork connections

5 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


Download Documentation
DucoBox Energy Product Catalogue
DucoBox Energy Installation Manual


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

Please click here to view delivery costs


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