Ventilate: When to Open

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Per-window, weather-based advice to cool your home without air conditioning

Freemium - Core per-window advice is free; optional paid features likely include advanced forecasts, multiple locations or priority notifications (product page does not list exact tiers).

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About Ventilate: When to Open

Ventilate gives clear, actionable guidance for each of your windows—when to close, crack, open, or place a fan—based on live weather and each window’s orientation. It helps you time ventilation to stay comfortable during heat without relying on air conditioning, reduce energy use, and make cooling decisions simple and practical.

Key Features

Per-window, orientation-aware recommendations (close, crack, open, or use a fan)
Live weather-driven timing so you ventilate “at the right time”
Fan placement suggestions to maximize cooling without AC
Simple, actionable instructions aimed at reducing reliance on air conditioning

Who is this for?

Homeowners and renters in warm climates who want simple, weather-driven guidance to cool their homes without air conditioning

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Freemium

Core per-window advice is free; optional paid features likely include advanced forecasts, multiple locations or priority notifications (product page does not list exact tiers).