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What are good ways to increase air flow in a home with few windows and oriented unfavorably to the local wind direction (cheaply)? (lemmy.ml)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

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I've been racking my brain lately thinking of what are good methods to increase internal airflow in a house with few windows, all facing the wrong direction to catch wind. What are your ideas?

Edit: Breaking a wall to make more windows isn't an option.

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[–] [email protected] 4 points 7 months ago* (last edited 7 months ago) (1 children)

Research and shop around for a type of fan called a centrifugal blower or utility blower. These fans are designed specifically for entire space ventilation. They sound like tiny jet engines. The same fans that inflate bouncy fun houses or the fans you sometimes see on a storefront wet floor during a rainy day to blow dry. Output rates of small units 100 to 500cfm (cubic feet per minute) will replace all air inside a 2-car garage space every hour. Mid range blowers 600-900cfm will replace that same air space every 5-10min (approx. 6x per hour). Higher velocity blowers >1000cfm will clear an entire 1-story house (typically for HVAC or factory use) and is more efficient and quieter than the biggest attic fan style unit.

After you have bought the raw power of air movement, then experiment with positive pressure and negative pressure flow setups (suck vs. blow). And then finally other per room or per window configurations as needed.

[–] [email protected] 3 points 7 months ago

Thanks for the tip, it does seem quite interesting. From what I could find locally, prices are all over the place, so I'll spend some time reading spec sheets haha