Key Features

• Brand: EnviroVent — LV-EVL (non-heated) loft-mounted PIV

• Whole-home condensation & mould control via central landing diffuser

• Filtered fresh-air supply improves indoor air quality

• Quiet, energy-efficient continuous operation with boost on demand

• Long-life, easy-access filter for minimal maintenance

• Insulated ducting for reduced losses and quieter airflow

• Discreet loft installation with low visual impact in rooms

• Helps meet UK Building Regulations Part F when correctly specified

What’s Included

• LV-EVL loft PIV unit (non-heated)

• Insulated flexible duct & ceiling diffuser (package/model dependent)

• Filter cartridge (pre-installed)

• Mounting feet/straps & fixings

• Installation & user instructions

Ideal For

• Houses & bungalows needing whole-home condensation control

• Retrofits where low running cost and low visual impact are priorities

Installation Notes

• Position on a stable loft deck; wire to a fused spur per regs

• Route insulated duct to a central landing diffuser; keep bends gentle and runs short

• Ensure roof space ventilation or duct intake to external air as per EnviroVent guidance

• Maintain background trickle vents in habitable rooms

Maintenance

• Inspect/replace filters at recommended intervals (usage/environment dependent)

• Wipe the diffuser and check duct/insulation annually

• Test boost/control functions seasonally

Technical Overview

• Type: Loft-mounted PIV, non-heated

• Controls: Trickle/boost (humidity/temperature/timer options depending on model)

• Duct size: typically Ø125–150 mm

• Electrical: 230 V AC via fused spur (see datasheet for rating)

• Finish: Robust polymer housing; insulated flexible duct to diffuser