3 ms·
Major tangent, but a product that I can't believe doesn't seem to exist is window fans (not AC units) with passive shutters to prevent air leakage when not in u
by sf_rob 6y ago
Major tangent, but a product that I can't believe doesn't seem to exist is window fans (not AC units) with passive shutters to prevent air leakage when not in use. I've actually built an exhaust fan in our rental house that somewhat meets these specs.
There are so many old houses that rely on window fans for fresh air or exhaust. The fact that these fans are literally just open fans with all the leakage that entails is quite inefficient.
This seems like a product with the same BOM cost as an existing popular product but with incremental energy benefits and no need for construction.
- pstuart 6y agoDoubling down on that: with air filter / swamp cooler options.
- ketamine__ 6y agoWhen they aren't in use take them out of the window. Problem solved.
- blacksmith_tb 6y agoObviously overkill/unneeded overhead, but most window AC units have a 'fan-only' setting that doesn't run the compressor. They aren't entirely sealed when not in use, either, of course. It does seem like it be easy enough to build a box with a fan and some louvers, maybe even a frame to hold an insulated cover on the inside...