Natural Ventilation Solutions & Systems

Natural, Hybrid and Heat Recovery Ventilation Solutions
Off the Shelf or Bespoke Solutions
Virtual and laboratory based testing to validate and support your design

Natural Ventilation Solutions

Every brief starts the same: a space that must breathe but can’t afford to leak energy. Tight budgets, tighter carbon targets, awkward floor plates, heritage facades. Yet occupants still demand perfect comfort. That’s where our in‑house technical experts and engineers step in. Because we design and manufacture every component of the natural ventilation range, we can tailor our systems to fit your project, no “off‑the‑shelf‑or‑nothing” compromises.

Why our natural ventilation range?

  • Up to 65 % heat recovery – comes as standard for our Mistrale Fusion Deo MFS-HR

  • Best‑in‑class airtightness – meeting and exceeding TM23 regulations

  • Factory‑built, off‑site modules – rapid install, predictable quality, risk reduction

  • Flexible by design – customised grilles, dampers and louvres for unique layouts

  • Whole‑life carbon wins – smaller plant rooms, ultra‑low fan power, easier maintenance

  • Regulation ready – proven compliance with BB 101, Part L, DfE specification and net zero frameworks

Bring us your most challenging footprint or retrofit and we’ll create a natural‑plus‑hybrid system that breathes efficiently and fits first time.

Natural ventilation, unlike mechanical fan forced ventilation, simply uses the natural pressure differential force of air movement, wind and buoyancy to deliver a steady supply of fresh air for building ventilation and cooling.

Your window on Natural Ventilation

Passive Natural Ventilation

Pure natural
ventilation

Hybrid Natural Ventilation

Natural Ventilation with fan power assistance

Hybrid Roof Terminals

Natural roof vent with fan power assistance

Hybrid Heat Recovery

Natural Ventilation with 65% heat recovery

Gilberts Mistrale Natural Ventilation Solutions are design led technologies incorporating patented features which position them at the leading edge of modern natural ventilation design. Suitable for both stack effect and wind driven systems Mistrale comprises of all of the key the components you will need to design a robust, efficient and extremely effective natural ventilation system.

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