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| Hopper windows are used on a three-season porch as venting transoms, bringing in cool breezes and letting hot air out. |
| Hopper windows are the smart choice when it comes to providing optimal ventilation in small areas like bathrooms. |
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| A massive hopper window offers an unobstructed view in Northern California. |
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| Ventilation from hopper windows can be especially helpful in the kitchen. |
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| Hopper windows are known for their energy efficiency. When closed, they offer a compression seal, making them a good choice for a sunroom with many windows. Tell us: Do you have a hopper in your home? |
You can either use the 'hopper' and get virtually no circulation (especially in a place with no cross-ventilation, as most post-WWII buildings are in central Europe) or you can open them like doors and have them jutting out into the room. I can't open them like doors 'part-way' to get 'just enough' air because they will blow full open no matter how much you open them. If it's windy outside, and they are open the 'hopper' way, they bang open and closed with every gust of air, unlike traditional American windows that slide up and down or side-to-side. I really don't see how they vent hot air, since hot air rises: how does the hot air go up to the top of the window and 'fall' down and out? How does cooler air outside rise UP to come in at the top of the windows? I suppose they might work in a well-designed building, but here in Poland, in the Bauhaus-nightmare apartment blocks, they are inconvenient, space-wasting and don't provide any real air circulation.
I often fantasize about making my fortune selling American-style sliding windows here, so you can adjust them anywhere from slightly open to full open, getting exactly as much air as you want, and without having to take everything off the windowsills in order to operate them or having to move your sheer curtains out of the way to avoid ripping them. Really, these 'tilt and turn' windows are the stupidest design I have ever seen. The only good anyone has ever said about them is that you can clean them easily. But since I clean them far less often than I open and close them, I'd rather have a bit more trouble cleaning the windows and skip all the hassle of dealing with them on a day-to-day basis. Horrible design.