Dodden Energy Efficient Construction

MVHR (Mechanical Ventilation Heat Recovery)

MVHR (Mechanical Ventilation with Heat Recovery) provides fresh filtered air into a building whilst retaining most of the energy that has already been used in heating the space.


We have been designing, installing and commissioning MVHR in the South west region for many years. MVHR (Mechanical Ventilation with Heat Recovery) is a  constant ventilation system providing  fresh filtered air into buildings whilst retaining most of the heat energy otherwize lost in conventional ventilation, designed and installed correctly these system will remove condensation and mould from our homes.

MVHR balance and commissioning
MVHR installation Bridgwater, Somerset
Commercial MVHR system Bristol play center

MVHR services we offer

  • Design and installation.
  • Commissioning service for self-installers this is compliant with part F of the building regulations 2023 and essential for local authority sign off.
  • Flow rate calculation charts and system design
  • System service- air flow rate re-balancing, filter change, heatexchanger core and fan motor cleaning
  • Fan unit repairs
Flow rate calculation
MVHR Installation design in wellington Somerset
MVHR commissioning to AD part F Building regulations