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OT Which direction is your ceiling fan SUPPOSED to run?
It's HOT, so I thought run the ceiling fan so the cool air comes across
the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? |
OT Which direction is your ceiling fan SUPPOSED to run?
"RobertMacy" wrote in message news:op.xif3f3zo2cx0wh@ajm... It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? it depends if you have air conditioning. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy
wrote: It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? I run UP all seasons.... moves the air within putting myself in a wind. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:29:47 -0700, Pico Rico
wrote: "RobertMacy" wrote in message news:op.xif3f3zo2cx0wh@ajm... ...snip... So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? it depends if you have air conditioning. again which way? for what reason? elaborate? |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:32:58 -0700, Jim Thompson
wrote: ...snip... I run UP all seasons.... moves the air within putting myself in a wind. ...Jim Thompson EXACTLY! In the summer cooler, in the winter the hot ceiling air does get a chance to slide down the cooler external wall, heating them a bit. ....I'm going to go change them all back. Experts! phewey! |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy
wrote: It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? Mine doesn't reverse, it always blows down. I don't think the blades can be switched. We don't have a/c, so the only time we use the fan is when it's warm at night. Works great. -- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott com http://www.highlandtechnology.com |
OT Which direction is your ceiling fan SUPPOSED to run?
Jim Thompson wrote:
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy wrote: It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? I run UP all seasons.... moves the air within putting myself in a wind. Yup. Same here. -- Regards, Joerg http://www.analogconsultants.com/ |
OT Which direction is your ceiling fan SUPPOSED to run?
On 04/07/14 07:38, RobertMacy wrote:
On Thu, 03 Jul 2014 16:32:58 -0700, Jim Thompson wrote: ...snip... I run UP all seasons.... moves the air within putting myself in a wind. ...Jim Thompson EXACTLY! In the summer cooler, in the winter the hot ceiling air does get a chance to slide down the cooler external wall, heating them a bit. ...I'm going to go change them all back. Experts! phewey! The idea of a direct draft downwards is to make you feel cooler due to the evaporation of your perspiration, why not make up your own mind and use whatever feels the best. |
OT Which direction is your ceiling fan SUPPOSED to run?
The instructions for my Hunter suggest blowing v(down arrow) in winter, to keep heat closer to occupants, and ^ in summer, to lift heat up. Those instructions are for a 12" or longer shaft betweem the ceiling and the motor turning the blades. For my fan - a flush 'ceiling hugger' - instructions are to run v in summer, since there is insufficient clearance for fan to create updraft. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:39:33 -0700, John Larkin
wrote: ...snip.... Mine doesn't reverse, it always blows down. I don't think the blades can be switched. We don't have a/c, so the only time we use the fan is when it's warm at night. Works great. AZ housing is noted for these fans. We have eight laced throughout the house. Three speed settings, two chains, one for fan one for light, and always two switches on the walls for each fan, and a 'direction switch' on the side of the housing, requires a ladder to get to that is very intelligently mnemonic, slide up air moves UP, slide down air moves DOWN. noiseless critters, too. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:44:53 -0700, Joerg wrote:
Jim Thompson wrote: ...snip.... I run UP all seasons.... moves the air within putting myself in a wind. Yup. Same here. THANKS, again empirical evidence opposite the 'experts'! |
OT Which direction is your ceiling fan SUPPOSED to run?
"RobertMacy" wrote in message news:op.xif3so2o2cx0wh@ajm... On Thu, 03 Jul 2014 16:29:47 -0700, Pico Rico wrote: "RobertMacy" wrote in message news:op.xif3f3zo2cx0wh@ajm... ...snip... So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? it depends if you have air conditioning. again which way? for what reason? elaborate? heat rises. If you have ac, you want to push the warm air down so it can become ac'd. If you don't have ac, you might as well leave the warm air up there were it will be less noticed. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:50:22 -0700, RobertMacy
wrote: On Thu, 03 Jul 2014 16:39:33 -0700, John Larkin wrote: ...snip.... Mine doesn't reverse, it always blows down. I don't think the blades can be switched. We don't have a/c, so the only time we use the fan is when it's warm at night. Works great. AZ housing is noted for these fans. We have eight laced throughout the house. Three speed settings, two chains, one for fan one for light, and always two switches on the walls for each fan, and a 'direction switch' on the side of the housing, requires a ladder to get to that is very intelligently mnemonic, slide up air moves UP, slide down air moves DOWN. noiseless critters, too. Mine cost $40 at Home Depot and doesn't have all those fancy features; 3 speeds, no light, no direction. It is quiet. In our climate, we probably use it 5 or 10 nights per year, for the rare heat wave. Ceiling fans are impressive. They seem to last forever. I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. -- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott com http://www.highlandtechnology.com |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 17:11:23 -0700, John Larkin
wrote: ...snip... I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. These fans are probably a bit more. you just reminded me that UP air is going to turn the fan into a chopper if accidently raise up into it! |
OT Which direction is your ceiling fan SUPPOSED to run?
RobertMacy wrote in
news:op.xif3f3zo2cx0wh@ajm: It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] I can only answer one of your questions. See red marking. http://tinypic.com/r/whxjpl/8 So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? |
OT Which direction is your ceiling fan SUPPOSED to run?
Mine cost $40 at Home Depot and doesn't have all those fancy features; 3 speeds, no light, no direction. It is quiet. In our climate, we probably use it 5 or 10 nights per year, for the rare heat wave. Ceiling fans are impressive. They seem to last forever. I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. Hi, Sounds like you have an experience with falling ceiling fan on you? I have 3 of them fancy ones on top floor of the house. Very seldom use them. Today it is VERY hot(for us at least), 30.7C in my front yard. 30C temp. here is not usual. Rather -30C is usual in winter, LOL! |
OT Which direction is your ceiling fan SUPPOSED to run?
On 7/3/2014 7:53 PM, RobertMacy wrote:
On Thu, 03 Jul 2014 16:44:53 -0700, Joerg wrote: Jim Thompson wrote: ...snip.... I run UP all seasons.... moves the air within putting myself in a wind. Yup. Same here. THANKS, again empirical evidence opposite the 'experts'! Wow, you seem to have a problem with authority. Of course you can use the fan anyway you wish. The recommendation has nothing to do with your house, it has to do with your skin. As others have pointed out when it is warm a slight breeze can feel good, so the fan is set to blow down so you can feel it. In the winter when it is cool you don't want to feel the breeze, so set it to up. By the time the circulation reaches you it is greatly dispersed and you don't feel the cool air so much. My bed is right under a window and I tried adding a plastic film to seal off the draft. But that only worked so well. I tried adding some cardboard as layers of insulation behind the blind and still felt a cold draft. Turns out I was reducing the heat flow through the window, but that was not the full problem. The air by the window would still get cold, but since it got cold slowly it fell slowly still lowering temperature significantly by the time it fell on my bed. It took a 3/4 inch sheet of Styrofoam tightly fitted to the window before I could sleep in that bed. This was a cold winter here and that draft was unbearable! It only takes a very little air flow to create a very noticeable draft in the winter because the air can be rather cold. That is why you want the fan blowing up if at all in the winter. I turn mine off in the winter. I don't think it changes the electric bill noticeably one way or the other or the comfort in the room. -- Rick |
OT Which direction is your ceiling fan SUPPOSED to run?
On 7/3/2014 8:42 PM, Tony Hwang wrote:
Mine cost $40 at Home Depot and doesn't have all those fancy features; 3 speeds, no light, no direction. It is quiet. In our climate, we probably use it 5 or 10 nights per year, for the rare heat wave. Ceiling fans are impressive. They seem to last forever. I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. Hi, Sounds like you have an experience with falling ceiling fan on you? I have 3 of them fancy ones on top floor of the house. Very seldom use them. Today it is VERY hot(for us at least), 30.7C in my front yard. 30C temp. here is not usual. Rather -30C is usual in winter, LOL! 30°C doesn't sound so bad to me. I like the 30°C days. It is the 33°C days like we've been having when it starts to be a bother. This weekend should be nice though. High around 30°C, low around 14°C at night. Nice sleeping weather. -- Rick |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 17:34:44 -0700, Red Green wrote:
RobertMacy wrote in news:op.xif3f3zo2cx0wh@ajm: ...snip.... claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] I can only answer one of your questions. See red marking. http://tinypic.com/r/whxjpl/8 Went there, waited ...and waited ...and waited, forgot what it was all about, couldn't read the tiny little words, so gave up cursing and swearing under my breath to return here ready to lambaste your reply when upon rereading, realized what that image was! then, LOL! Plus, the images had an unusual coordinate system for showing those spatial diagrams. Had you not shown me those images, I NEVER would have thought of using that type of presentation to potential clients for showing accuracy of our proposed position-location system in that simple manner, THANKS! See, there's a reason for everything! |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:38:12 -0700, RobertMacy
wrote: On Thu, 03 Jul 2014 16:32:58 -0700, Jim Thompson wrote: ...snip... I run UP all seasons.... moves the air within putting myself in a wind. ...Jim Thompson EXACTLY! In the summer cooler, in the winter the hot ceiling air does get a chance to slide down the cooler external wall, heating them a bit. ...I'm going to go change them all back. Experts! phewey! The theory is to move the hot air from the ceiling down to the living space in the winter. Depending the use of the space, summer may require up or down. If air conditioned you can get away with keeping temps at least 4 degrees warmer if you keep the fan running down because the light breeze helps cool. Running the fan UP draws the cool air from the floor up to the ceiling and circulates the air across the ceiling to spill down the walls. Doesn't work as well with "architectural" ceilings. I just put 2 70 inch fans in the office - 6 speed - running down on 4th speed -13 and 15 foot ceilings with architectural features - (former theatre) |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy
wrote: So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? If your room is a well insulated adiabatic system, it doesn't matter. The fan just mixes the air until the air in the room is all the same temperature. Whether you mix from the bottom or top has little effect on the final temperature. However, if the system leaks and is therefore not adiabatic, the story is a little different. Heat will be introduced into the room through the ceiling and windows. The result with be a temperature gradient where the ceiling and window air are warmer than the air near the floor. The only temperature of importance is your head, which radiates most of the waste heat from your body. Because it is closer to the ceiling than the floor, a fan blowing downward will heat your head instead of cooling it, as you observed. So, if you have a leaky system, blow the colder air from the floor upwards. If you have a well insulated system, it doesn't matter as all the air will eventually be the same temperature. If you have a thermistor temp probe and meter, you could wave it around various locations in the room and see how you're doing on insulation. If you find that the ceiling air is very much warmer than room air (near the floor), it might pay to look into a ceiling exhaust fan. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 17:54:04 -0700, rickman wrote:
...snip... Wow, you seem to have a problem with authority. Of course you can use the fan anyway you wish. Problem with authority? Maybe, but it was a LEARNED response. Actually, I was trying to confirm whether others experienced what I had found empirically, and was in direct opposition to the 'experts' suggestion. Plus, convince Ms. Macy that I am NOT an idiot and delusional for thinking I know more than the experts on these House shows. The recommendation has nothing to do with your house, it has to do with your skin. As others have pointed out when it is warm a slight breeze can feel good, so the fan is set to blow down so you can feel it. In the winter when it is cool you don't want to feel the breeze, so set it to up. By the time the circulation reaches you it is greatly dispersed and you don't feel the cool air so much. I thought that way too, directly blowing down onto me in hot weather 'sounded' better. But just confirmed that blowing down on me ended up 'feeling' a good 5 degrees hotter, than letting air come in from the sides. I now have the fan set for UP and it feels cooler in the room than with NO fan. And earlier it definitely felt hotter with the fan blowing DOWN, by several degrees above what it was like with NO fam. My bed is right under a window and I tried adding a plastic film to seal off the draft. But that only worked so well. I tried adding some cardboard as layers of insulation behind the blind and still felt a cold draft. Turns out I was reducing the heat flow through the window, but that was not the full problem. The air by the window would still get cold, but since it got cold slowly it fell slowly still lowering temperature significantly by the time it fell on my bed. It took a 3/4 inch sheet of Styrofoam tightly fitted to the window before I could sleep in that bed. This was a cold winter here and that draft was unbearable! It only takes a very little air flow to create a very noticeable draft in the winter because the air can be rather cold. That is why you want the fan blowing up if at all in the winter. I turn mine off in the winter. I don't think it changes the electric bill noticeably one way or the other or the comfort in the room. At University I had a roomate who during the summer would go logging for piece meal wages to make great money. He said they roasted all day, like into the 80's, 90's, and froze at night in their cabins. Wake up in the morning to find a sheet of ice frozen over standing water in any dish! Now THAT's cold. He said the money was worth it, though. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 21:01:14 -0400, rickman wrote:
On 7/3/2014 8:42 PM, Tony Hwang wrote: Mine cost $40 at Home Depot and doesn't have all those fancy features; 3 speeds, no light, no direction. It is quiet. In our climate, we probably use it 5 or 10 nights per year, for the rare heat wave. Ceiling fans are impressive. They seem to last forever. I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. Hi, Sounds like you have an experience with falling ceiling fan on you? I have 3 of them fancy ones on top floor of the house. Very seldom use them. Today it is VERY hot(for us at least), 30.7C in my front yard. 30C temp. here is not usual. Rather -30C is usual in winter, LOL! 30°C doesn't sound so bad to me. I like the 30°C days. It is the 33°C days like we've been having when it starts to be a bother. This weekend should be nice though. High around 30°C, low around 14°C at night. Nice sleeping weather. Low humidity 30C is comfortable. 28C and 60+% humidity is a different story. But still better than 39C and 90+% humidity in Livingstone in October!!! |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:48:25 -0700, wrote:
The instructions for my Hunter suggest blowing v(down arrow) in winter, to keep heat closer to occupants, and ^ in summer, to lift heat up. Those instructions are for a 12" or longer shaft betweem the ceiling and the motor turning the blades. For my fan - a flush 'ceiling hugger' - instructions are to run v in summer, since there is insufficient clearance for fan to create updraft. I didn't think to see if the manual for these fans says anything about air direction. Great, trip over those damn little manuals [one for each fan] for a year, now can't find a single one! aha! distance to the ceiling making a difference, hmmmm, 10 ft ceilings so the fan has the luxury of being down a bit from the ceiling. assume 'v' mean down? |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 18:18:43 -0700, wrote:
...snip.... space in the winter. Depending the use of the space, summer may require up or down. If air conditioned you can get away with keeping temps at least 4 degrees warmer if you keep the fan running down because the light breeze helps cool. Running the fan UP draws the cool air from the floor up to the ceiling and circulates the air across the ceiling to spill down the walls. Doesn't work as well with "architectural" ceilings. I just put 2 70 inch fans in the office - 6 speed - running down on 4th speed -13 and 15 foot ceilings with architectural features - (former theatre) wow, sounds neat! just got done with a 'side by side' comparison; DOWN is HOTTER than no fan! even though the air hits you more directly just seems to become hot air. UP is COOLER than no fan! keep getting cold drafts from every side. well 'cool' drafts. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 18:19:00 -0700, Jeff Liebermann
wrote: ...snip.... If you have a thermistor temp probe and meter, you could wave it around various locations in the room and see how you're doing on insulation. If you find that the ceiling air is very much warmer than room air (near the floor), it might pay to look into a ceiling exhaust fan. True, a bit leaky into the rest of the house and a lot of thermal storage out there in the form of a few thousand sq ft of travertine stones. This is 2008 construction in AZ custom built for an owner, walls are like R-22, or such and ceilings are like R-30+ or such. Ceiling exhaust fan !!! when it's 105 outside no way!!! you want me to suck in outside air at those temps??!! Let's see at night 81 during day 105, making the average high side of 93, sounds about right. Since I painted my house a darker color and take advanatage of 'night time radiation' the average in our house has dropped substantially. Who would have thought? dark house = cooler average, light colored house = hotter average. but true we noticed a difference the moment the house was painted. |
OT Which direction is your ceiling fan SUPPOSED to run?
|
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy
wrote: It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Down in Summer, up in Winter. A breeze cools. Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. Just saw one of those home shows, says in winter run the fan to move air UP so the hot air moves along the ceiling and down your walls. And, in the summer run your fan DOWN, with NO explanation, except claiming that lowers your temperature 4-5 degrees [which is impossible in a CLOSED system] and save up to 40% on air conditioning [what planet do THEY live on?] It doesn't do anything for the temperature (other than raise it slightly - power dissipation of the fan) but a breeze will cool you off. You don't want this in the Winter but you may want to mix the air, so it should be up and on low so you don't feel a draft. Low will mix the air, just fine. So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? DOWN |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 3 Jul 2014 17:00:16 -0700, "Pico Rico"
wrote: "RobertMacy" wrote in message news:op.xif3so2o2cx0wh@ajm... On Thu, 03 Jul 2014 16:29:47 -0700, Pico Rico wrote: "RobertMacy" wrote in message news:op.xif3f3zo2cx0wh@ajm... ...snip... So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? it depends if you have air conditioning. again which way? for what reason? elaborate? heat rises. If you have ac, you want to push the warm air down so it can become ac'd. If you don't have ac, you might as well leave the warm air up there were it will be less noticed. But you can cool to a higher temperature if you help the convection off your skin. Add in evaporative cooling and a breeze is a big win, at least in small rooms, like a home. |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 16:50:22 -0700, RobertMacy
wrote: On Thu, 03 Jul 2014 16:39:33 -0700, John Larkin wrote: ...snip.... Mine doesn't reverse, it always blows down. I don't think the blades can be switched. We don't have a/c, so the only time we use the fan is when it's warm at night. Works great. AZ housing is noted for these fans. We have eight laced throughout the house. Three speed settings, two chains, one for fan one for light, and always two switches on the walls for each fan, and a 'direction switch' on the side of the housing, requires a ladder to get to that is very intelligently mnemonic, slide up air moves UP, slide down air moves DOWN. noiseless critters, too. Ours have pull-chains for both switches (even though all but one have two wall switches, and that one has two switches but only one is connected for some reason). |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 18:29:46 -0700, RobertMacy
wrote: On Thu, 03 Jul 2014 18:18:43 -0700, wrote: ...snip.... space in the winter. Depending the use of the space, summer may require up or down. If air conditioned you can get away with keeping temps at least 4 degrees warmer if you keep the fan running down because the light breeze helps cool. Running the fan UP draws the cool air from the floor up to the ceiling and circulates the air across the ceiling to spill down the walls. Doesn't work as well with "architectural" ceilings. I just put 2 70 inch fans in the office - 6 speed - running down on 4th speed -13 and 15 foot ceilings with architectural features - (former theatre) wow, sounds neat! just got done with a 'side by side' comparison; DOWN is HOTTER than no fan! even though the air hits you more directly just seems to become hot air. UP is COOLER than no fan! keep getting cold drafts from every side. well 'cool' drafts. Air conditioned, or not?? In the "theatre" we were able to crank the AC up 4 degrees C without people complaining of heat, and the "upper deck" area is now cool instead of toasty. (about 1/3 of the "theatre" is about 16" higher (floor) than the rest - with level ceiling. Originally was 3 levels, 1/3 low, 1/3 up one step, and 1/3 up another step. A few of the girls should wear more clothes - they complain their legs get cold. |
OT Which direction is your ceiling fan SUPPOSED to run?
On 7/3/2014 9:19 PM, RobertMacy wrote:
On Thu, 03 Jul 2014 17:54:04 -0700, rickman wrote: ...snip... Wow, you seem to have a problem with authority. Of course you can use the fan anyway you wish. Problem with authority? Maybe, but it was a LEARNED response. Actually, I was trying to confirm whether others experienced what I had found empirically, and was in direct opposition to the 'experts' suggestion. Plus, convince Ms. Macy that I am NOT an idiot and delusional for thinking I know more than the experts on these House shows. The recommendation has nothing to do with your house, it has to do with your skin. As others have pointed out when it is warm a slight breeze can feel good, so the fan is set to blow down so you can feel it. In the winter when it is cool you don't want to feel the breeze, so set it to up. By the time the circulation reaches you it is greatly dispersed and you don't feel the cool air so much. I thought that way too, directly blowing down onto me in hot weather 'sounded' better. But just confirmed that blowing down on me ended up 'feeling' a good 5 degrees hotter, than letting air come in from the sides. I now have the fan set for UP and it feels cooler in the room than with NO fan. And earlier it definitely felt hotter with the fan blowing DOWN, by several degrees above what it was like with NO fam. I can't explain that and it is in direct opposition to what I have observed. With the fan blowing down gently I feel the breeze and it helps. I never felt like the air was a warm wind. With the fan blowing up I don't feel anything, but then my ceiling may be higher than yours, it is a cathedral ceiling. I do use it for dispersing the stuff that triggers the smoke detector. If you like your toast dark it goes off. Turn on the fan and in a minute it goes off. My bed is right under a window and I tried adding a plastic film to seal off the draft. But that only worked so well. I tried adding some cardboard as layers of insulation behind the blind and still felt a cold draft. Turns out I was reducing the heat flow through the window, but that was not the full problem. The air by the window would still get cold, but since it got cold slowly it fell slowly still lowering temperature significantly by the time it fell on my bed. It took a 3/4 inch sheet of Styrofoam tightly fitted to the window before I could sleep in that bed. This was a cold winter here and that draft was unbearable! It only takes a very little air flow to create a very noticeable draft in the winter because the air can be rather cold. That is why you want the fan blowing up if at all in the winter. I turn mine off in the winter. I don't think it changes the electric bill noticeably one way or the other or the comfort in the room. At University I had a roomate who during the summer would go logging for piece meal wages to make great money. He said they roasted all day, like into the 80's, 90's, and froze at night in their cabins. Wake up in the morning to find a sheet of ice frozen over standing water in any dish! Now THAT's cold. He said the money was worth it, though. Money is money. I am barely willing to do regular work these days. Once you get some how much do you need? -- Rick |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 20:09:24 -0600, Tony Hwang
wrote: wrote: On Thu, 03 Jul 2014 21:01:14 -0400, rickman wrote: On 7/3/2014 8:42 PM, Tony Hwang wrote: Mine cost $40 at Home Depot and doesn't have all those fancy features; 3 speeds, no light, no direction. It is quiet. In our climate, we probably use it 5 or 10 nights per year, for the rare heat wave. Ceiling fans are impressive. They seem to last forever. I did tie it into the ceiling real good. Nothing wrecks your sleep like a fan falling on you. Hi, Sounds like you have an experience with falling ceiling fan on you? I have 3 of them fancy ones on top floor of the house. Very seldom use them. Today it is VERY hot(for us at least), 30.7C in my front yard. 30C temp. here is not usual. Rather -30C is usual in winter, LOL! 30°C doesn't sound so bad to me. I like the 30°C days. It is the 33°C days like we've been having when it starts to be a bother. This weekend should be nice though. High around 30°C, low around 14°C at night. Nice sleeping weather. Low humidity 30C is comfortable. 28C and 60+% humidity is a different story. But still better than 39C and 90+% humidity in Livingstone in October!!! Hi, I just took a look on my Davis weather station console. 32% indoor, 43% outdoor humidity. This week end Stampede starts, hope we have good, dry weather next 10 days. I'm sitting at 24C and 41% right now without the AC on. Was 13C outside this morning, and 25-ish later in the day -likely 45%. Not nearly as hot and humid as earlier in the week. |
OT Which direction is your ceiling fan SUPPOSED to run?
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OT Which direction is your ceiling fan SUPPOSED to run?
On 07/03/2014 04:27 PM, RobertMacy wrote:
So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? Move the air down in the summer so the breeze keeps you cool, move the air up in the winter to push the heat out of hugging the ceiling. Jon |
OT Which direction is your ceiling fan SUPPOSED to run?
"Jon Danniken" wrote in message ... On 07/03/2014 04:27 PM, RobertMacy wrote: So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? Move the air down in the summer so the breeze keeps you cool, move the air up in the winter to push the heat out of hugging the ceiling. Jon move the air up in the summer so you aren't blasting yourself with warm air, move the air down in the winter to push the warm air down where you live. I think a lot of this has to do with how tall your ceilings are, and your specific temperature differentials. |
OT Which direction is your ceiling fan SUPPOSED to run?
On 7/3/2014 9:19 PM, Jeff Liebermann wrote:
On Thu, 03 Jul 2014 16:27:29 -0700, RobertMacy wrote: So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? If your room is a well insulated adiabatic system, it doesn't matter. The fan just mixes the air until the air in the room is all the same temperature. Whether you mix from the bottom or top has little effect on the final temperature. However, if the system leaks and is therefore not adiabatic, the story is a little different. Heat will be introduced into the room through the ceiling and windows. The result with be a temperature gradient where the ceiling and window air are warmer than the air near the floor. The only temperature of importance is your head, which radiates most of the waste heat from your body. I would love to see a reference for this factoid. It is an often perpetuated myth that half you heat leaves your body through your head. Simply not supported by the facts. Because it is closer to the ceiling than the floor, a fan blowing downward will heat your head instead of cooling it, as you observed. This statement shows no understanding of human physiology. Even ignoring the issue of perspiration and evaporative cooling, the human body is nominally at 98°F and will be cooled better in an airstream of even 90°F than in still air. -- Rick |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 18:40:06 -0700, RobertMacy
wrote: Ceiling exhaust fan !!! when it's 105 outside no way!!! you want me to suck in outside air at those temps??!! Let's see at night 81 during day 105, making the average high side of 93, sounds about right. I thought it gets kinda cold at night in Az. I've only been there once. It was quite hot during the day, but we nearly froze sleeping in the car at night. Since I painted my house a darker color and take advanatage of 'night time radiation' the average in our house has dropped substantially. Who would have thought? dark house = cooler average, light colored house = hotter average. but true we noticed a difference the moment the house was painted. In some areas, white rocks and white roofs are required by code to reduce air conditioning requirements. It's suppose to reflect the sunlight instead of absorbing it. Now, you're telling me that the collective wisdom of the local planning department might be wrong? Are you sure? -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
OT Which direction is your ceiling fan SUPPOSED to run?
On Thu, 03 Jul 2014 22:28:23 -0400, krw wrote:
On Thu, 3 Jul 2014 17:00:16 -0700, "Pico Rico" wrote: "RobertMacy" wrote in message news:op.xif3so2o2cx0wh@ajm... On Thu, 03 Jul 2014 16:29:47 -0700, Pico Rico wrote: "RobertMacy" wrote in message news:op.xif3f3zo2cx0wh@ajm... ...snip... So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? it depends if you have air conditioning. again which way? for what reason? elaborate? heat rises. If you have ac, you want to push the warm air down so it can become ac'd. If you don't have ac, you might as well leave the warm air up there were it will be less noticed. But you can cool to a higher temperature if you help the convection off your skin. Add in evaporative cooling and a breeze is a big win, at least in small rooms, like a home. We have air conditioning which keeps the house at 78, and a way undersized room dehumidifier which we set up in the master shower, turn on the circulating fan in the furnace, and basically slowly and inefficiently dry out the whole house. It makes a huge huge difference how hot it feels -- and we're in Oregon, where everyone is a humidity wimp. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
OT Which direction is your ceiling fan SUPPOSED to run?
Hi Robert,
It's HOT, so I thought run the ceiling fan so the cool air comes across the stone flooring and moves by me to be sucked up into the ceiling fan - so I feel cooler. Fan is set to move air UP Earlier I thought run the fan directly onto me gently moving air straight at me, which is DOWN. But when I did that, after 10-15min felt hotter in the room. If the fan has been off for a while, there will be a pool of hot air near the ceiling. When you turn the fan on, it may feel warmer for a while until that hot air mixes with the cooler air below. So my question is WHICH way is this !@#$#@ system designed for? UP or DOWN air in the summer? A ceiling fan doesn't change the actual temperature in the room (watch your thermometer). It just feels cooler because the air moves across your skin. That's why you should only run the fan when you're in the house. You're just wasting energy if you're not in the house to feel the breeze. In a closed room, it really shouldn't make any difference which way the fan blows. The fan simply circulates the air, one direction or the other, but it moves the same amount of air either way. Doorways and other openings can alter the airflow somewhat, but that's the basic principle. That said, the breeze will be strongest directly in front of the fan where it is less dispersed. Since I spend more time walking beneath the fan than I do above it, I always have my fan blowing down. That way I am more likely to feel the air flow. In any case, try both directions and see which is more comfortable in your home where you spend the most time. I rarely use my ceiling fan in the winter. I don't want air moving across my skin to make me feel cooler. About the only time I use the fan in the winter is if we are using our woodstove, in which case it helps equalize the heat in the house instead of being warm in one room and cool in the others. Anthony Watson www.mountainsoftware.com www.watsondiy.com |
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