Myth01
Passive ventilation is just an opened window.
Fact
Windhive controls flow with intelligent dampers and recovers heat through a static exchanger. Open windows throw warm air away.
Fan-free passive ventilation
Natural ventilation.
With heat recovery.
Fresh air driven by natural stack effect. Heat captured in a passive counterflow exchanger. For the first time, a single unit delivers both — with no fan energy in the airway.
01 / 03Windhive
0 fans·Natural stack·UK made
The product range
04 / systemsFour systems.
One healthy building.
Passive ventilation, automated façade vents, and exhaust-air heat pumps — engineered and manufactured in the UK, sharing one monitoring platform.
Passive·Automated·EAHP
Passive HR
01 / 04Windhive®
Passive ventilation with heat recovery.
100% fresh air at comfortable temperatures, whatever the weather. No fans in the airway.
- HR eff.
- 72%
- Fan power
- 0 W
- Peak supply
- 200 l/s
72%0 W200 l/s
Explore
Automated wall vent
02 / 04Façade
Automated wall ventilation.
Fresh air and overheating protection through the wall — silent, connected, seamless.
- Mode
- Purge
- Control
- Smart
- Acoustic
- Silent
PurgeSmartSilent
Explore
Exhaust air heat pump
03 / 04Home E
EAHP comfort system.
Renewable heating, balanced ventilation, hot water and energy storage in one cabinet.
- Heating
- Renewable
- Storage
- Integrated
- Monitor
- Cloud
RenewableIntegratedCloud
Explore
EAHP + heat recovery
04 / 04Home B
EAHP with heat recovery.
For airtight new-builds and deep retrofits — balanced HRV plus heat pump and free cooling.
- For
- Airtight
- Cooling
- Free
- HR core
- Yes
AirtightFreeYes
ExploreServices
Not a catalogue.
A full-service engineering team.
From first sketch to twentieth year on site. Our engineers work with your team from brief through to monitored, tuned performance in use.
Design
Design services
Early-stage consultancy for architects and M&E engineers. Strategy, unit sizing, airflow modelling and integration into Passive First and Part F/L/O compliance routes.
RIBA 2–4
Design stage support
Live buildings
Remote monitoring
Every unit connects to the Ventive Hub. Live IAQ, temperature and performance data — commissioned, tuned and reported remotely across the building's life.
24 / 7
Cloud-connected performance
In-use
Service and reporting plan
Scheduled servicing plus quarterly performance reporting on IAQ, comfort and energy — measured against design intent, with tuning recommendations from our engineers.
Quarterly
Performance reports
Education
CPD's
RIBA-approved CPDs on natural ventilation, heat recovery, overheating and IAQ. In-person or online, certified and evidence-led — no product pitch.
45 min
Live CPD sessions
By the numbers
A ventilation system that reads like a physics paper.
Every claim on this page is measured against modelled and monitored in the cloud across the installed fleet.
0%
Heat recovery, no fans
0%
Fresh outdoor air
0 W
Fan energy in the airway
0.0 kWh
Annual per-unit consumption
The four anchors
What Windhive stands on.
Four commitments that don't bend for a project. Read them as the specification we hold ourselves to before we ask you to hold a specification to us.
01 / 0401
Independence
A genuinely independent British manufacturer, in a field where every direct rival has been absorbed into a group.
02 / 0402
Fan-free heat recovery
Passive ventilation and heat recovery in one unit, with no fans. The thing none of them do.
03 / 0403
Backed by evidence
Performance stood up by testing and cloud monitoring across every installed unit.
04 / 0404
UK manufacturing
Designed and built here. Short lead times, closed loop on quality.
The independence story
The last independent
specialist standing.
Every direct passive ventilation specialist in the UK has been absorbed into a plumbing, brick or fan-manufacturing conglomerate. One remains independent — and it's the only one that recovers heat without a fan.
The passive ventilation specialists — 2026
- WindhiveIndependent — UK
- MonodraughtGenuit Group
- PassiventWienerberger
- Breathing BuildingsVolution Group
Manufactured
United Kingdom
Short lead times, closed-loop QA.
Sector applications
Where Windhive
earns its keep.
High-occupancy rooms where noise, CO₂ and overheating decide whether a building actually gets used.
Schools01 / 07
Schools & Academy Trusts
Read the sector brief→
Community02 / 07
Community, Village & Assembly Halls
Read the sector brief→
Sports03 / 07
Sports & Scout Halls
Read the sector brief→
Early Years04 / 07
Nurseries & Early Years
Read the sector brief→FE & HE05 / 07
Colleges & Universities
Read the sector brief→Leisure06 / 07
Leisure Facilities
Read the sector brief→Public sector07 / 07
Public Buildings
Read the sector brief→Specifier hubs
Written for the people naming Windhive at Stage 2 and 3.
Passive First
A worldview,
not a gate.
Put natural physics first. Add mechanical assistance only where it does something the fabric cannot. A design order both architects and M&E engineers can move through together.
Evidence
Measured
against modelled.
Every installed Windhive is cloud-monitored. We publish post-occupancy temperature and CO₂ against the modelled prediction — predicted next to measured, no cherry-picking.
+3%
Δ vs model
890
CO₂ ppm mean
24/7
Telemetry
Case Study — St Mary’s Community Hall
Live · CO₂ ppm
SepOctNovDecJan
Modelled Measured
n = 8,760 hrsMyth vs Fact
The common objections,
answered plainly.
Myth02
You can't recover heat without fans.
Fact
Windhive does exactly that — up to 72% heat recovery with no fans in the ventilation path.
Myth03
Passive systems only work in mild weather.
Fact
Cloud-controlled dampers and heat recovery keep the system in range year-round, including winter cold and summer overheating.
Specifying, or just working out where Windhive fits?
Talk to us for a project-specific conversation, or book a CPD for your practice — remote or in person.