Skip to content
Wholesale Electrical Supplies Online
Wholesale Electrical Supplies
EXC. VAT
INC. VAT

Positive Input Ventilation (PIV) Units – Fresh Air, Better Indoor Environment

Installing a positive input ventilation (PIV) unit is a smart way to improve indoor air quality while helping reduce issues like dampness and condensation—especially in UK homes prone to poor air circulation. These systems gently introduce filtered, fresh air into upper areas of a house, creating a subtle, continuous flow that pushes moist, stale air out through natural leak paths.

Designed for quiet, year-round operation, PIV units work efficiently without disrupting daily life. They’re an excellent solution for improving ventilation in bedrooms, living spaces, and loft areas, particularly in well-insulated buildings where natural airflow may be limited. The controlled fresh air flow helps balance indoor humidity, discourages mould growth, and supports a healthier breathing environment.

Maintenance is straightforward: most models include washable filters and accessible vents. Over time, consistent air turnover can reduce reliance on intense heating, promoting energy savings and improving occupant comfort. While upfront installation requires some planning, the resulting benefits—drier walls, fresher air, and reduced cleaning needs—make PIV systems a valuable long-term investment.

Explore our selection to find a PIV unit suited to your home’s size and layout, making year-round comfort and air quality easier to achieve.

  • Main Image
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
    Blauberg

    Blauberg AERIS-MIDI-TER Aeris-Midi Decentralised Single Room Heat Recovery Unit - Terracotta Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg AERIS-MIDI-TER Aeris-Midi Decentralised Single Room Heat Recovery Unit - Terracotta Cowl Product Description Blauberg Aeris-Midi smart ro...

    View full details
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
  • Main Image
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
    Blauberg

    Blauberg AERIS-MIDI-GRY Aeris-Midi Decentralised Single Room Heat Recovery Unit - Grey Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg AERIS-MIDI-GRY Aeris-Midi Decentralised Single Room Heat Recovery Unit - Grey Cowl Product Description Blauberg Aeris-Midi smart room mou...

    View full details
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
  • Main Image Sold out
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
    Blauberg

    Blauberg AERIS-MIDI-CS Aeris-Midi Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl

    Availability:
    SOLD OUT

    Blauberg AERIS-MIDI-CS Aeris-Midi Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl Product Description Blauberg Aeris-Midi smart...

    View full details
    £436.81
    £436.81 - £436.81
    £436.81
    £431.00 Inc VAT
    £359.17 Exc VAT
    £431.00 - £431.00
    £359.17 Inc VAT
    £359.17 - £359.17 Exc VAT
    £359.17 Exc VAT
    Sold out
  • Main Image
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
    Blauberg

    Blauberg AERIS-MINI-TER Aeris-Mini Decentralised Single Room Heat Recovery Unit - Terracotta Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg AERIS-MINI-TER Aeris-Mini Decentralised Single Room Heat Recovery Unit - Terracotta Cowl Product Description Blauberg Aeris Eco-Ventilato...

    View full details
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
  • Main Image
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
    Blauberg

    Blauberg AERIS-MINI-GRY Aeris-Mini Decentralised Single Room Heat Recovery Unit - Grey Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg AERIS-MINI-GRY Aeris-Mini Decentralised Single Room Heat Recovery Unit - Grey Cowl Product Description Blauberg Aeris Eco-Ventilators are...

    View full details
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
  • Main Image
    Sold out
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
    Blauberg

    Blauberg AERIS-MINI-CS Aeris-Mini Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl

    Availability:
    SOLD OUT

    Blauberg AERIS-MINI-CS Aeris-Mini Decentralised Single Room Heat Recovery Unit - Cotswold Stone Cowl Product Description Blauberg Aeris Eco-Ventil...

    View full details
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
    Sold out
  • Main Image
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
    Blauberg

    Blauberg AERIS-MINI-BRO Aeris-Mini Decentralised Single Room Heat Recovery Unit - Brown Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg AERIS-MINI-BRO Aeris-Mini Decentralised Single Room Heat Recovery Unit - Brown Cowl Product Description Blauberg Aeris Eco-Ventilators ar...

    View full details
    £391.88
    £391.88 - £391.88
    £391.88
    £387.00 Inc VAT
    £322.50 Exc VAT
    £387.00 - £387.00
    £322.50 Inc VAT
    £322.50 - £322.50 Exc VAT
    £322.50 Exc VAT
  • Main Image
    £446.22
    £446.22 - £446.22
    £446.22
    £437.98 Inc VAT
    £364.98 Exc VAT
    £437.98 - £437.98
    £364.98 Inc VAT
    £364.98 - £364.98 Exc VAT
    £364.98 Exc VAT
    Blauberg

    Blauberg VENTO-MIDI-AIR-GRY Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Grey Cowl

    Availability:
    Dispatch in 2-3 Days

    Blauberg VENTO-MIDI-AIR-GRY Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Grey Cowl Product Description Vento ventilators a...

    View full details
    £446.22
    £446.22 - £446.22
    £446.22
    £437.98 Inc VAT
    £364.98 Exc VAT
    £437.98 - £437.98
    £364.98 Inc VAT
    £364.98 - £364.98 Exc VAT
    £364.98 Exc VAT
  • Main Image
    Sold out
    £446.22
    £446.22 - £446.22
    £446.22
    £437.98 Inc VAT
    £364.98 Exc VAT
    £437.98 - £437.98
    £364.98 Inc VAT
    £364.98 - £364.98 Exc VAT
    £364.98 Exc VAT
    Blauberg

    Blauberg VENTO-MIDI-AIR-CS Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Cotswold Stone Cowl

    Availability:
    SOLD OUT

    Blauberg VENTO-MIDI-AIR-CS Vento Midi-Air Decentralised Single Room Heat Recovery Unit - WiFi - Cotswold Stone Cowl Product Description Vento vent...

    View full details
    £446.22
    £446.22 - £446.22
    £446.22
    £437.98 Inc VAT
    £364.98 Exc VAT
    £437.98 - £437.98
    £364.98 Inc VAT
    £364.98 - £364.98 Exc VAT
    £364.98 Exc VAT
    Sold out
  • Main Image
    £167.24 - £167.24
    £167.24 Inc VAT
    £139.37 Exc VAT
    £167.24 - £167.24
    £139.37 Inc VAT
    £139.37 - £139.37 Exc VAT
    £139.37 Exc VAT
    Blauberg

    Blauberg ENVIRA-45 Single Room Heat Recovery Fan for Mould Control - Small

    Availability:
    Dispatch in 2-3 Days

    Blauberg ENVIRA-45 Single Room Heat Recovery Fan - Mould Control Solution Product Overview ENVIRA-45 - Your Affordable Solution to Mould Issues The...

    View full details
    £167.24 - £167.24
    £167.24 Inc VAT
    £139.37 Exc VAT
    £167.24 - £167.24
    £139.37 Inc VAT
    £139.37 - £139.37 Exc VAT
    £139.37 Exc VAT
  • Main Image
    £183.79 - £183.79
    £183.79 Inc VAT
    £153.16 Exc VAT
    £183.79 - £183.79
    £153.16 Inc VAT
    £153.16 - £153.16 Exc VAT
    £153.16 Exc VAT
    Blauberg

    Blauberg ENVIRA-50 Single Room Heat Recovery Fan for Mould Control - Medium

    Availability:
    Dispatch in 2-3 Days

    Blauberg ENVIRA-50 Single Room Heat Recovery Fan for Mould Prevention - Medium Product Overview Introducing the ENVIRA-50: Advanced Heat Recovery F...

    View full details
    £183.79 - £183.79
    £183.79 Inc VAT
    £153.16 Exc VAT
    £183.79 - £183.79
    £153.16 Inc VAT
    £153.16 - £153.16 Exc VAT
    £153.16 Exc VAT
  • Main Image
    £228.15 - £228.15
    £228.15 Inc VAT
    £190.13 Exc VAT
    £228.15 - £228.15
    £190.13 Inc VAT
    £190.13 - £190.13 Exc VAT
    £190.13 Exc VAT
    Blauberg

    Blauberg ENVIRA-60 Single Room Heat Recovery Fan for Mould Control - Large

    Availability:
    Dispatch in 2-3 Days

    Blauberg ENVIRA-60 Single Room Heat Recovery Fan – Effective Mould Control Solution Product Overview ENVIRA-60 – Intelligent Ventilation for Mould ...

    View full details
    £228.15 - £228.15
    £228.15 Inc VAT
    £190.13 Exc VAT
    £228.15 - £228.15
    £190.13 Inc VAT
    £190.13 - £190.13 Exc VAT
    £190.13 Exc VAT

    • Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare

    Compare