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Passive House MVHR

Our Passive House range of heat recovery ventilation systems, manufactured by Dantherm Air Handling are certified by the PassivHaus Institute and feature the latest energy saving technology

  • Passive House Certified Component
  • Up to 95% efficient
  • Demand Controlled Ventilation
Features & Benefits Units Controls Ducting & Valves Installation
  • Approved for Passive houses
  • Lightweight aluminium counterflow heat exchanger
  • High efficiency – up to 95%
  • EC motors with extremely low energy consumption (low SFP)
  • G4 / F7 Pollen filters available
  • Demand-controlled ventilation with integrated humidity sensor
  • Summer bypass module will increase the fresh air supply and extraction rates up to 40% more than the set boost rate
  • Installation-friendly solution with adjustment of air volumes directly on the unit

Best Practice Passive House MVHR installation

All systems are designed in-house by our experienced technical team and installed by our own team of BPEC registered engineers.

Beam Installation Team 

Our Passive House Mechanical Ventilation with Heat Recovery (MVHR) systems are installed with smoothflow rigid ducting throughout, providing higher heat efficiency. The low pressure loss will result in lower energy use and the system will be quieter due to efficient low velocity.
This solid ducting is resistant to crush damage during construction and thereafter can be cleaned and maintained if required.

We only use precision engineered metal and plastic fittings, ducting and silencers mechanically fastened and sealed at every joint.

Passive House MVHR Ducting Installation should take place as follows:

  • If the house is of concrete slab construction
  • When roof is complete (building watertight)
  • Before any other services are installed below the concrete slab
  • A void space of 200mm below the concrete slab will allow insulated duct to be used
  • A void space of 100mm will mean you will have to convert to 204/60mm flat channel ducting
  • If the house is of timber-frame construction
  • When roof is complete (building watertight)
  • Before any other services are installed
  • Timber partition walls and floors are in place

Should you decide to install a MVHR system from Beam on a DIY basis, we can provide design layout and commissioning. However, it is crucial that best practice is adhered to at all times to ensure system efficiency.

Unit: HCV5 HCH5 HCH8
Passive House Certified Component
Certified for air flow rates 99-220m³H−¹ 99-220m³H−¹ 135-340m³H−¹
Effective Heat Recovery Rate nHR, eff 81% nHR, eff 81% nHR, eff 83%
Electric power consumption 0.27 wh/m³ 0.27 wh/m³ 0.26 wh/m³
Flow (max) 425m³h−¹ 450m³h−¹ 650m³h−¹
Summer Bypass
Control System Demand Control Demand Control Demand Control
Inlet Diameter (mm) 160 160 250
Weight (kg) 57 66 84
Dimension (W x H x D) (mm) 590 x 1055 x 566 1180 x 600 x 580 1180 x 600 x 780
SAP Appendix Q Listed
Condensate Drain Required

The Dantherm HCV/HCH range of MVHR units is supplied with demand controlled automation which doesn’t need to be touched once the system is installed. The control panel has options to adjust individual default settings if special requirements arise.

Demand Control:

Automatic demand control is based on a range of average considerations that guarantee a comfortable indoor climate in all conditions. The RH sensor will seek to keep the relative humidity at a comfortable level regardless of activity levels in the home.

Control Panel:

The 3 push buttons of the control panel give access to:

  • Manual control of ventilation speed
  • Automatic control of ventilation speed
  • Manual by-pass/cooling

Remote control:

The wireless remote control gives the user access to:

  • Automatic demand control
  • Manual operation
  • Week programme operation
  • Away operation
  • Night operation
  • Fireplace operation

An important aspect of a well planned, low energy MVHR system is the ducting type, design and the quality of installation.

Best practice is to use larger diameter, 125mm diameter branch lines and up to 250mm diameter main lines, which can carry the necessary high volumes of air at low velocity (depending on size of system).

Rigid, large diameter ducting is the preferred choice to provide a smooth flow of air, causing less noise (from both fans and air turbulence) and costs less to run. Foil backed insulated ducting in a cold space is essential to retain high heat efficiency.

Careful consideration to the design and choice of installation materials ensures your MVHR system delivers the correct ventilation rate and heat efficiency to your home.

Our Supply & Extract Valves are manufactured in high quality steel and are designed to not produce down draft, ensuring a comfortable indoor climate.

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