6 speed levels

7.5 / 25 / 35 / 48 / 90 / 140 m³/h supply rates. Speed 4 is the reference flow for compliant whole-room ventilation.

Night mode

Silent 7.5 m³/h with +4°C extra incoming temperature for sleep comfort and continuous low-level air exchange.

Winter mode

Anti-frost protection prevents heat exchanger icing in extreme cold. Maintains 92% recovery down to −15°C ambient.

Mini-heating

Switchable 45 W micro-heater extends operating range to −30°C outdoor for prolonged Northern winters.

Boost mode

140 m³/h unregulated maximum — for purging cooking smells, post-shower humidity, or rapid air change after parties.

Wireless remote

IR remote control included as standard. All 6 speeds, modes, and on/off accessed from across the room.

Status LEDs

Front-panel LEDs show current speed, mode, and filter cleaning indicator.

Manual on/off

Run continuously or switch off at the wall when not needed. Default behaviour: continuous low-speed.

Filter LED indicator

Front-panel LED indicates when filter cleaning is due — typically every 3–6 months.

Through-wall sleeve

Ø212 mm core hole — single drilling, no internal ductwork required.

Module length

490 mm minimum — fits standard external wall thicknesses including UK cavity walls.

Module diameter

210 mm working module — larger ceramic core and fan stack than 160 series.

Two EC fans

Higher-capacity supply and extract fans, separately controlled, brushless motors. SPI 0.12 W/(m³/h).

Copper heat exchanger

Naturally antimicrobial. Larger surface area than 160 series. Counter-current design retains 92% of room heat.

G2 filter (standard)

Washable mesh filter on supply side. Cleaned at home. G4 upgrade available (+£25).

Internal grille

235 mm white grille, supplied — sits flush on the internal wall.

External cap

200 mm stainless or white — weather-protected, integrated insect screen.

Weight

≥ 6 kg — wall-mounted, no floor or ceiling fixings required.

2 year warranty

PRANA covers the unit for 2 years from commissioning. CE certified, EMC / Ecodesign / RoHS / LVD compliant. ISO 9001 quality system.

10+ year service life

Manufacturer-stated 10-year service life. Copper heat exchanger has no moving parts and no degradation path. EC fans rated for 50,000+ hours of continuous operation.

100% double-tested

Full incoming quality inspection, plus double 100% final inspection after assembly. Each unit tested for 24 hours at maximum load before shipping.

Filter cleaning

Every 3–6 months — slide out the G2 mesh, wash under the tap, let it dry, reinstall. Takes 2 minutes.

Optional G4 upgrade

Replace standard G2 mesh with a G4 cartridge for finer filtration. £25 add-on. Same cleaning routine.

No refrigerant

The unit is purely mechanical — fans, copper exchanger, no F-gas. No regulated handling, no leak risk, no phase-out concerns.