Grandma's Best fan placement to move air through the house

[00:00:00]My grandmother owned one box fan, one, for a whole house in heat that would put most of us flat on the floor by noon.

[00:00:09]She had a single fan she carried from room to room for probably 30 years. The cage gone soft and gray with kitchen grease, one blade slightly bent so it ticked a little when it ran. And here's the part that stuck with me my whole life. That one fan sitting in the right window kept her house cooler than the four fans my aunt ran across town blasting away in every corner plugged in all day long. Same heat, same kind of house. My grandmother stayed cool and my aunt stayed miserable. People figured the old woman just couldn't afford more fans. That wasn't it. There was a reason she only ever needed the one and it took me years to understand it. And when I finally did, I felt a little foolish for how simple it turned out to be. My name's Dale. I'm retired now, worked a lot of jobs across my life and I've spent the last few years passing on the things my grandparents taught me because nobody seems to know them anymore and I think that's a quiet kind of theft. My grandmother was Cuban. She grew up where summer wasn't a season you complained about. It was a thing you lived with every single day with no machine to make it go away. And the things that woman knew about moving air through a house without spending a dollar, without a thermostat, without anything but a couple of open windows and that one tired fan I'm still using every July of my life. So, let me give it to you the way she gave it to me because once you understand it, you will never look at a fan the same way again. Here's the question I want to answer, The whole reason we're sitting here. How do you actually cool a house with a fan? Not cool yourself for 10 minutes, cool the house. Because I'll be straight with you, almost everybody does this wrong.

[00:02:10]And the reason they do it wrong is that nobody ever told them the one thing they needed to know first. They were sold a machine instead. We'll get to that machine and to who profits when you don't know any of this because somebody does. But stay with me because by the end you're going to know exactly where that fan goes and which window and what hour of the day and you're going to walk through your own house tonight seeing it the way my grandmother saw hers. Let me start with the thing that breaks everybody's brain and it's the thing you have to swallow before any of the rest makes sense. A fan does not cool the air. It doesn't, not even a little. run a fan in a sealed room for 6 hours and the temperature in that room will be exactly the same as when you started and honestly a hair warmer because the motor itself gives off a little heat. That's not me being clever, that's just what a fan is. It's a thing that moves air.

[00:03:13]That's all it does. It moves air. So why does standing in front of one feel so good? Because of you. Because your body is throwing off heat and sweat every second and when moving air rushes across your skin, it carries that heat away and it speeds up the sweat drying off you and that evaporation pulls warmth right out of your body. That's the whole magic. The breeze isn't cold. The breeze is just moving. Your skin does the rest.

[00:03:42]They've measured it. A good moving breeze across your skin can make you feel something like 4° cooler than the actual air around you, and not one degree of that is the air getting colder. It's all happening on the surface of your skin. Try it right now if you don't believe me. Blow on the back of your hand slow and soft. Feels warm, right? Of course it does. You're around 98° inside. Now purse your lips up tight and blow fast across that same spot. Feels cool. Nothing changed except the speed of the air. Your hand's the same temperature, the room's the same temperature, but fast-moving air on skin feels cool, and slow air feels warm.

[00:04:31]That right there is the entire secret of a fan, and most people go their whole lives without anybody explaining it to them. Now, here's why that matters so much. If a fan only cools the person it's blowing on, then a fan sitting in an empty room is doing absolutely nothing but spinning and using up electricity, and warming the place by a whisker. My grandmother would have been appalled at the idea of a fan running in a room with nobody in it. To her, that was the same as leaving the faucet running, and it tells you something. If all the fan does is move air across you, then the real game, the thing she understood that almost nobody does today, isn't pointing a fan at your face. It's something much bigger. It's moving the air through the whole house, trading the hot air inside for the cooler air outside. And that is a completely different skill, and it's where she was an absolute master. Before I show you exactly how she did it, let me say one quick thing, because if you like this kind of thing, the old know-how, the ways people kept a house livable before everything came with a power cord and a monthly bill. This is what I do here every week. Forgotten skills that still work. Subscribing is just how you keep this stuff from disappearing completely because there aren't many people left teaching it.

[00:06:06]That's all. Let me get back to your grandmother's house. So, moving air through the house. Here's the first thing she knew that the fan companies never tell you. Air doesn't want to move through a closed up room. It needs two openings, not one. It needs a way in and a way out. You ever stand in a doorway on a breezy day and feel that lovely current pulling through? That only happens because the air has somewhere to come from and somewhere to go. Block either end and it dies. Air comes in one window on the side the breeze is hitting, runs across the room, and leaves out a window or door on the far side, the sheltered side where the pressure is lower. Folks call it cross ventilation and it is the single oldest cooling trick there is. It needs no electricity at all. A decent cross breeze running through a house can hold the inside a couple of degrees below the outside air just on its own, just from the trade. So, what does the fan do? The fan is there for the days the wind won't cooperate. On a dead still, breathless afternoon, the days you need it most, and of course, those are exactly the days nature gives you nothing. The fan becomes the wind. You put it in the picture and it forces that trade to happen. It drives air out one side, so fresh air has to come pulling in the other. The fan isn't cooling anything.

[00:07:42]The fan is a pump. It's pumping the hot air out of your house and pulling the cooler air in to take its place. Once you see it that way, that a fan is really an air pump and not a cooling machine, everything about where to put it suddenly makes sense. And where you put it is everything. This is the part my grandmother got exactly right and the part everybody else gets exactly backwards. Let me tell you how she set up that one fan. The fan goes in a window facing out. Out. You read that right. You point it out the window so it's blowing the inside air away, out of the house like an exhaust. And you pick the window in the hottest, stuffiest, highest part of the house to do it.

[00:08:30]Upstairs if you've got an upstairs, the room that bakes, the side that took the afternoon sun. That's your exhaust.

[00:08:39]That's the fan kicking the worst, hottest air out of the building entirely. Then, and this is the half people forget, you go to the other end of the house, the shady side, the cool side, the lowest and most sheltered window you've got, and you open it wide.

[00:08:57]You don't put a fan there. You just open it. That open window is the intake. With the fan shoving hot air out one end, the house goes a little bit hungry for air and it pulls fresh, cooler air in through that open window all on its own, drawing it straight across every room in between. One fan, two windows, a river of air running through the whole house.

[00:09:22]You want the fan filling a small opening, not floating in a big one.

[00:09:26]Crack the window down so the fan just fits. Stuff a rolled towel in the gaps, block off the extra space. The smaller and tighter the opening around the fan, the more of its push actually goes outside and stays outside instead of curling back into the room. The professionals who move air for a living know this cold. The firefighters know it, too. But she when they need to clear a house full of smoke in a hurry, they don't wave a fan around in the middle of the room. They set it in one tight opening and let it drive every bit of that smoke out the far side of the house. Same exact principle that cools your bedroom. A tight opening pushing out, pulling fresh in across the way.

[00:10:14]Now, if you've got a bigger house, or you're lucky enough to own two fans, you can do something even better. And it's the closest thing to building yourself a little wind machine for nothing. You put the second fan in that low, cool window, the intake, and you face it in blowing the cool outside air into the house. So, now you got one fan downstairs on the shady side shoving cool air in, and one fan upstairs on the hot side shoving hot air out. And the two of them are working as a team, one pushing and one pulling, driving a current straight through the middle of the house from the cool corner to the hot one. Intake low and cool facing in, exhaust high and hot facing out. You can stand in the hallway between them and feel the whole house moving. My grandmother never had two fans to spare, but the year I finally set it up that way in my own place, I understood exactly what she'd been doing with one. She duct She'd just been making a single fan do both jobs by trusting the open window to handle the other half. So, already, if you do nothing else, you're ahead of almost everybody. Fan high and hot, facing out.

[00:11:37]Open window, low and cool, far away, tied around the fan. That alone will change how your house feels tonight. And while we're at it, if you've got a ceiling fan, summer is when it should be spinning counterclockwise. So, it pushes the air straight down on you instead of pulling it up. There's a little switch on the body of most of them. Nobody ever touches. Flip it. Down in summer so you get the breeze on your skin, up in winter to stir the warm air down off the ceiling without the draft. Free, and most folks have had it set wrong for years. But I want to give you the deeper layer because this is where it stops being a trick and starts being something you actually understand. The way she did. And I want to be honest with you about something first because honesty is the only way I know how to do this.

[00:12:31]Moving air over your skin and trading the house's air, that's wonderful. And on a lot of days, it's all you need. But there are days it won't be enough on its own. When the air outside is thick and muggy and dead still and just as hot as the air inside, a fan has very little to work with because there's no cooler air to trade for and your sweat can't even evaporate in air that wet. I won't tell you a box fan beats a brutal, soupy heat wave because it doesn't. And anybody selling you that is lying. What I'm giving you is the thing that handles the ordinary heat of an ordinary summer for almost nothing. The heat that we now throw a thousand dollars a year at a machine to handle. So, let me show you the part that does the real, lasting work. Hot air rises. You know this. You felt it on a staircase, that wall of warmth at the top, that stuffy thick air that sits up high while the floor stays cooler. Heat goes up always because warm air is lighter than cool air. Your grandmother's house, your house, every house is a little chimney whether you know it or not. And here's how you use it. If hot air is already trying to climb to the top of your house and escape, then your job is just to give it the door. Open a window up high, top of the stairs, an upstairs room, the highest opening you've got, and the hottest air in the house will pour out of it on its own. No fan needed because that's what it wants to do. And the moment it leaves, it pulls cooler air in through the low windows downstairs to replace it. Cool air sinks in low, gets warmed by the house and by you, rises up and slips out the top, and it just keeps going. A slow, steady current running upward through your whole home, powered by nothing but the simple fact that heat rises. The old folks built whole houses around this, high ceilings, tall windows up top, a way for the heat to climb out.

[00:14:47]They called it the chimney effect because that's exactly what it is. Your house breathing like a chimney. And if you put your one fan up at that high window facing out, you're not fighting the house anymore. You're helping it do the thing it already wanted to do.

[00:15:04]You're supercharging a current that nature started for free. That's the trouble, really. And I want to be honest about why I bring up what I'm about to bring up. Every one of these things is wonderful on its own, the cross breeze, the fan placed right, the chimney effect, the timing I'm about to show you. But the old folks never used them one at a time. My grandmother ran all of them at once together as a single system, the way you'd play every note in a chord instead of one at a time. The cross breeze and the high exhaust and the cool low intake and the right hour of the day all working together that what kept that house livable. And that's a whole way of thinking, not a single tip. And that's exactly why I finally sat down and put all of it in one place.

[00:15:58]It's a book called the zero dollar household Bible. It's everything my grandparents knew about running a home on almost nothing and not just keeping cool in July. It's keeping warm in January for next to nothing. It's the food that stretches and lasts. It's fixing what breaks instead of tossing it. The whole pantry, the whole house, all of it. The entire way those people lived gathered back into one place.

[00:16:30]Because here's the thing that gets me. I tell you that knowledge wasn't lost by accident. It was good knowledge. It kept families fed and warm and comfortable and free. It got taken from us quietly because there's no money in a family that already knows how to keep itself cool. There's a fortune in selling that same family a machine and a monthly bill. So, I gathered it back up. If you'd like it, just grab your phone, open the camera and point it at the code on the screen. It'll bring the book right up. Or you'll find the link in the first comment below and in the description. That's it. I won't bring it up again. If you want it, it's there.

[00:17:12]And if you don't, you've still got everything I'm telling you right now free, the same as she gave it to me.

[00:17:19]Let's get back to the house because there's one more piece, and it's the biggest one, and it's the one nobody does anymore. And it's the reason my grandmother only ever needed that single fan. Here's the part I promised you at the start. It's not about the fan at all. It's about the clock. She walked the house twice a day, every single summer day, two trips, and I can still see her doing it. Early, before the sun had any teeth in it, with the tile floor still cold enough under your bare feet to make you hop, she'd go room to room and throw every window and door wide open. The whole house thrown open to that cool, soft morning air. The curtains lifting and falling, the smells of the garden coming in. She was flushing the house, filling every room, every wall, the very bones of the place with that cool night and morning air while it was free for the taking. And then, this is the part everybody misses.

[00:18:26]Late morning, before the heat got serious, she walked it again, and she closed it all. Every window shut, every shutter pulled, and the whole house sealed up tight and shaded, holding that cool morning air inside like a thermos holds your coffee. By the worst of the afternoon, while the world outside was an oven, her house was a cave, cool and dim and quiet. She had trapped the morning and was living in it all day long. That's the secret. That's the whole thing. The house itself, the floors, the walls, the furniture, soaks up whatever air sits in it. Fill it with cool air at night and seal it at dawn, and that coolness stays in the structure for hours, bleeding back out slowly all afternoon, keeping you comfortable long after the cool air outside is gone. Open the house when it's cool, close it when it's hot. It is the exact opposite of what most people do. They throw the windows open at 2:00 in the afternoon when it's blazing, letting all the heat pour in, and then wonder why the house won't cool down at night. You've got it backwards. Close by day, open by night, and the fan? The fan's job is at night in that open window, helping pull all that lovely cool night air deep into the house faster, flushing the day's heat out and the night's cool in, charging the whole place up like a battery so it'll coast cool through the next day.

[00:20:02]There's an honest limit here, and I'll give it to you straight because that's the deal between us. This works best where the nights actually cool off. If you live somewhere the night barely drops below the day, there's less cool to trap, and you'll lean harder on the moving air across your skin instead. But across most of this country, most of the summer, the night air is a good deal cooler than the afternoon, and almost nobody is using it. It's pouring past your house for free every single night while you sleep in a hot box and pay a machine to fight a battle you could have won with an open window and the right hour. And that's the thing I keep circling back to. The thing that gets under my skin a little. None of this was ever a secret. The fan that does all this, a man named Squealer Wheeler, stuck a little two-bladed propeller on an electric motor back in 1882, and the patent office put its stamp on the electric fan in 1885. People called it the buzz fan. It's been in American houses for almost 150 years. And for most of that time, people knew how to use it because they had to. The air conditioner didn't come along to cool people until decades later. The first one a fellow named Carrier built in 1902 wasn't even for comfort. It was to keep paper from wrinkling in Brooklyn printing plant. Cooling the people was almost an afterthought. For generations before that machine took over every house in America, family stayed cool the way my grandmother did with air, with timing, with know-how. And it worked.

[00:21:53]So, let me ask you something and I mean it as a real question, not just talk.

[00:21:58]The people who grew up in houses like hers, they all knew which window in the house was the cool one. There was always one. The one on the shady north side, the one that caught the evening breeze, the one grandma swore by. Do you know which window in your house is the cool one? Most folks have never once thought about it. If you do know or if your grandmother had one she swore by, I'd love to hear about it down in the comments. Tell me where you grew up and which window it was. I read them and those little memories are half the reason I do this. Because here's what happened and I'm not going to dress it up as some grand conspiracy because it isn't one and the truth is simpler and honestly a little sadder than that.

[00:22:47]There was no meeting in a back room where somebody decided to make us forget how to open a window. It's just money.

[00:22:54]That's all it ever is. There is no money in teaching a family to flush their house at dawn and seal it at noon.

[00:23:03]There's no monthly bill in a box fan placed in the right window, but there is a fortune in it, a genuine, endless, beautiful to them fortune in convincing every household in America that the only way to be cool is a machine that costs thousands to install and runs your meter all summer long and breaks down right when you need it. So, that's what got sold, and the old knowing got allowed to quietly die. Not because it stopped working, it never stopped working, but because nobody could make a dollar off it. You weren't told, you were just left to assume your grandparents suffered through the heat because they were poor and didn't know better. They didn't suffer, they understood air, and understanding air was free. My wife, Linda, and I'll tell you right now, Linda's the real problem solver in this house. I just do what she tells me. She walks our place every evening in summer, same as my grandmother did, opening it all up to the cool of the night, and she's got one trick of her own that's better than anything I do. On the very worst nights, when even the night air comes in warm and limp, she'll hang a damp sheet or a wet towel right across the open window where the fan's pulling the air in. The air comes through that wet cloth, and the water evaporating out of it pulls the temperature down a few degrees on the way in, the same way sweat cools your skin, just at the window instead.

[00:24:46]People pay good money in the dry parts of the country for a whole machine that did exactly that. A swamp cooler, they called it, built back in the 1930s, blowing air through wet pads. Linda does it with a bath towel and a clothespin.

[00:25:05]Costs nothing. They'd have laughed at what we pay for the fancy version. If you grew up in a house that lived this way, windows thrown open at first light, shutters closed against the noon sun, a single fan moved from room to room, maybe a wet sheet in the window on the bad nights, then you already carry this.

[00:25:25]You lived it, and there aren't as many of us left who remember it as there used to be. If you can still picture your grandmother walking the house at dawn, opening it all up, I'd love it if you'd say so below. You're keepers of something most people threw away. And if all of this reminds you of somebody, uh your dad who always knew exactly which window to open, your grandmother who ran the whole house off one fan, an old neighbor who never owned an air conditioner in his life and was somehow always comfortable, send this to them.

[00:26:02]They'll get a kick out of hearing somebody finally say it out loud.

[00:26:06]There's one more thing my grandfather taught me that goes right along with all this, and it's how you find out where your air is actually moving before you ever plug a fan in. He'd wet his finger and hold it up in a doorway, the old sailor's trick, cool side told him which way the draft ran. But if you want to really see it, light a candle or a single match and walk it slowly past a cracked window or a doorway. Watch the flame. Where it leans, the air is moving, and which way it leans tells you whether that opening is pulling air in or pushing it out. He'd walk a whole house that way of an evening, reading the air like other men read a newspaper, finding the secret little currents already running through the place. Then he'd set the fan to work with them instead of against them. Most people fight their own house without ever knowing it. He never did. He found out what the air was already doing, and he just gave it a push. So, here's where I'll leave you. Go walk your own house today the way she walked hers. Find your hot high room and your cool low one.

[00:27:18]Tonight, when the air outside finally goes soft, put your one fan in that high window facing out, tighten the opening down around it, open a low window on the cool side wide, and feel the whole house start to breathe. Then in the morning, before the sun gets mean, throw it all open and let the cool pour in. And the second it starts to warm up, close it all and trap that morning. Seal the cave. You'll spend the hot afternoon inside the cool of the morning, and you'll have done it with a $20 fan and the turn of a few window latches. And here's the part I really want you to hear. Underneath all the how-to, those people weren't worse off than us sweating it out because they couldn't afford better. That's the story we got told, and it's a lie. They were free.

[00:28:13]They didn't depend on a company that didn't care whether their house was livable or not. They couldn't have their comfort shut off for a missed payment.

[00:28:22]They understood the air in their own home, and that understanding belonged to them and to their children, and it was supposed to belong to you. It got taken, but it's the easiest thing in the world to take back because it never actually went anywhere. It was just waiting in an open window for somebody to remember it.

[00:28:43]So, this summer, take it back. And I'd love to hear which window in your house turns out to be the cool one. Go find it and tell me.