From: <krk...@gm...> - 2013-05-29 00:47:19
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<div dir="ltr">I installed a whole house fan over the weekend and I was able to use MisterHouse to add "thermostat control" to it. I wrote it up as an example of the power of MisterHouse and thought others might be interested.<div> <br></div><div><a href="http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/" target="_blank">http://www.krkeegan.com/a-<WBR>temperature-controlled-whole-<WBR>house-fan-with-misterhouse/</a><br></div><div><br></div><div> <br></div></div> |
From: Eloy P. <pe...@ch...> - 2013-05-29 02:56:39
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On 05/28/2013 08:47 PM, krk...@gm... wrote: > I installed a whole house fan over the weekend and I was able to use > MisterHouse to add "thermostat control" to it. I wrote it up as an > example of the power of MisterHouse and thought others might be interested. > > http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/ > <http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/> Very nice; thanks for the detailed write up. BTW, what are you using for the web interface; is that a customized version of the iphone.pl shipped with MisterHouse? Cheers, Eloy Paris.- |
From: Kevin R. K. <ke...@kr...> - 2013-05-29 03:27:47
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It was started from iphone.pl, but I doubt much of it survives anymore. My goal is to make a jquery plugin that is completely object-type independent. Iphone.pl was annoying in that many of the object specific type code was hardcoded into it. This relies either on MH atttributes, such as set_states or set_label. In addition, I am trying to make it very customizeable so that users can change the "status" of any object or group by passing code similar to that used in tie_events. I have every intention of adding it to MH eventually, but I still have a lot more work to do. The current, undocumented, code is here: https://github.com/krkeegan/mh-user-code make sure you get the files from the code and web directories. Since it is not currently part of MH you should remap your directories using html_alias if you are going to use it. Kevin On Tue, May 28, 2013 at 7:56 PM, Eloy Paris <pe...@ch...> wrote: > On 05/28/2013 08:47 PM, krk...@gm... wrote: > > > I installed a whole house fan over the weekend and I was able to use > > MisterHouse to add "thermostat control" to it. I wrote it up as an > > example of the power of MisterHouse and thought others might be > interested. > > > > > http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/ > > < > http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/ > > > > Very nice; thanks for the detailed write up. > > BTW, what are you using for the web interface; is that a customized > version of the iphone.pl shipped with MisterHouse? > > Cheers, > > Eloy Paris.- > > > > ------------------------------------------------------------------------------ > Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET > Get 100% visibility into your production application - at no cost. > Code-level diagnostics for performance bottlenecks with <2% overhead > Download for free and get started troubleshooting in minutes. > http://p.sf.net/sfu/appdyn_d2d_ap1 > ________________________________________________________ > To unsubscribe from this list, go to: > http://sourceforge.net/mail/?group_id=1365 > > |
From: Rick Bolen(gm) <ric...@gm...> - 2013-05-29 11:48:19
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I'm working on a temp controlled WHF also. I intend to sense temp using some 1wire devices. You chose 5 degrees as the differential trigger? Any particular reason, or was that just a starting point? I'm trying to think thru the algorithm for enabling\disabling the fan. As the outside temp bottoms out ~5-6am and starts to climb, I'm not sure if I should stop the fan, or continue drawing until outside temp = inside temp. If I log some data I suppose I can get a feel for it by looking at whether the inside temp continues to fall, but by 8:30am the outside temp is usually to high. While I'm a heat tolerant person, the WHF has enabled me to barely run AC at all for the past three (milder) summers. BTW, I'm interested in JQuery in MH as well. Cheers, Rick |
From: Kevin R. K. <ke...@kr...> - 2013-05-29 16:20:33
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On Wed, May 29, 2013 at 4:48 AM, Rick Bolen(gm) <ric...@gm...> wrote: > You chose 5 degrees as the differential trigger? Any particular reason, or > was that just a starting point? I'm trying to think thru the algorithm for > enabling\disabling the fan. > It is just a guess. Some articles online state that you need a 10 degree differential. I figure I get exponentially diminishing returns as the temperature differential drops. The downsides of leaving the fan on are power costs and increased dust, my guess is that at about 5 degrees these downsides exceed the upsides. > As the outside temp bottoms out ~5-6am and starts to climb, I'm not sure > if I should stop the fan, or continue drawing until outside temp = inside > temp. > The mass of my house results in it heating up much, much slower than the outside temp. > While I'm a heat tolerant person, the WHF has enabled me to barely run AC > at all for the past three (milder) summers. > Awesome, I am hoping I get the same results. > BTW, I'm interested in JQuery in MH as well. > Got it. As soon as we get the 3.0 milestone done, I will finish it up. |
From: Marc M. <ma...@me...> - 2013-05-30 02:15:29
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On Wed, May 29, 2013 at 12:47:13AM +0000, krk...@gm... wrote: > <div dir="ltr">I installed a whole house fan over the weekend and I > was able to use MisterHouse to add "thermostat control" to > it. I wrote it up as an example of the power of MisterHouse and > thought others might be interested.<div> > <br></div><div><a href="http://www.krkeegan.com/a-temperature-controlled-whole-house-fan-with-misterhouse/" target="_blank">http://www.krkeegan.com/a-<WBR>temperature-controlled-whole-<WBR>house-fan-with-misterhouse/</a><br></div><div><br></div><div> > <br></div></div> First, FYI, it looks like you recently changed mail programs, but either way your Emails now send a text portion of your multipart text/html that is also HTML. It makes your mails a bit painful to read now (in text mode that is). Can you see if you can fix that? As for the topic, I have 3 pieces of code that do temperature control with fans. owfs.pl does a fridge-like code that turns a fan just long enough to cool down a room, but only if it gets too hot to start with garage_fans.pl does more fancy work to get temperature back down between 2 zones in my garage (attic and garage itself), with: - only keep attic cool if it's getting too hot and the air outside is cool enough to bother - do the same for the garage, but only do that one at night because it's loud Also, it's only if the predicted temperature in the next 24H is going to be warm enough to bother. hvac.pl is much more complex and implements a mix of using duct fans as booster fans, or as fans to suck outside air to cool down the house without AC, again based on temperature differentials and predicted temperature. outsidetemp.pl::get_high_low_temp gets upcoming highest and lowest temp from forecast and puts them in $Weather{'upcoming_high_temp'} $Weather{'upcoming_low_temp'} Hope this helps, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ |
From: JimMH <jsk...@sb...> - 2013-06-28 17:27:56
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I would like to automate my whole house fan but I have a couple issues ... 1. How do people let air into the house? This normally requires at least a couple open windows. But I don't want to leave the open all day or night. I usually run the fan at night when it cools down and then shut down the fan and close the windows in the morning. The days can get quite warm so I want the windows shut then. I have casement windows so could add some gear motors to a couple windows but that makes the project more complex - especially getting the control signals to the motors. 2. I live in the midwest and humidity is an issue that must be factored in. If the dew point isn't below 65 (preferably 60) there isn't much point in ventilation. Not a real problem as that is easy enough to do. It's just that no one in this thread has mentioned it. Apparenlty humidity isn't an issue for others? -- View this message in context: http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18182.html Sent from the Misterhouse - User mailing list archive at Nabble.com. |
From: J D <sta...@gm...> - 2013-06-28 17:33:09
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It isn't that it's not a problem. It's that no one seems to think it's a solvable one. Which is so weird, because now we have fairly cheap humidity and temp sensors that could be built into HVAC products but so rarely seem to be. I don't know why house exhaust fans are never built into home HVAC systems. It seems to me they'd be a cheap addition that could save a lot of money. On Jun 28, 2013 1:29 PM, "JimMH" <jsk...@sb...> wrote: > I would like to automate my whole house fan but I have a couple issues ... > > 1. How do people let air into the house? This normally requires at least > a > couple open windows. But I don't want to leave the open all day or night. > I usually run the fan at night when it cools down and then shut down the > fan > and close the windows in the morning. The days can get quite warm so I > want > the windows shut then. I have casement windows so could add some gear > motors to a couple windows but that makes the project more complex - > especially getting the control signals to the motors. > > 2. I live in the midwest and humidity is an issue that must be factored > in. > If the dew point isn't below 65 (preferably 60) there isn't much point in > ventilation. Not a real problem as that is easy enough to do. It's just > that no one in this thread has mentioned it. Apparenlty humidity isn't an > issue for others? > > > > -- > View this message in context: > http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18182.html > Sent from the Misterhouse - User mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > ________________________________________________________ > To unsubscribe from this list, go to: > http://sourceforge.net/mail/?group_id=1365 > > |
From: Jim S. <ji...@se...> - 2013-06-28 22:23:10
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I have a heat recovery ventilator - I have the automation run it when there is an anticipated need to cool and the outdoor air is cool and dry enough. I have plans to make a "bypass core" so that it is not as efficient at heat exchanging that I can put in for the summer. From: J D [mailto:sta...@gm...] Sent: Friday, June 28, 2013 1:33 PM To: JimMH Cc: misterhouse users Subject: Re: [mh] Temperature Controlled Whole House Fan It isn't that it's not a problem. It's that no one seems to think it's a solvable one. Which is so weird, because now we have fairly cheap humidity and temp sensors that could be built into HVAC products but so rarely seem to be. I don't know why house exhaust fans are never built into home HVAC systems. It seems to me they'd be a cheap addition that could save a lot of money. On Jun 28, 2013 1:29 PM, "JimMH" <jsk...@sb...> wrote: I would like to automate my whole house fan but I have a couple issues ... 1. How do people let air into the house? This normally requires at least a couple open windows. But I don't want to leave the open all day or night. I usually run the fan at night when it cools down and then shut down the fan and close the windows in the morning. The days can get quite warm so I want the windows shut then. I have casement windows so could add some gear motors to a couple windows but that makes the project more complex - especially getting the control signals to the motors. 2. I live in the midwest and humidity is an issue that must be factored in. If the dew point isn't below 65 (preferably 60) there isn't much point in ventilation. Not a real problem as that is easy enough to do. It's just that no one in this thread has mentioned it. Apparenlty humidity isn't an issue for others? -- View this message in context: http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fa n-tp18077p18182.html Sent from the Misterhouse - User mailing list archive at Nabble.com. ---------------------------------------------------------------------------- -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ________________________________________________________ To unsubscribe from this list, go to: http://sourceforge.net/mail/?group_id=1365 |
From: darylreece <ds...@co...> - 2013-06-30 17:20:53
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Here is a suggestion. I have a whole house fan, but I didn't like the inlet being my window screens with all the pollen, so I added a 10" duct to my furnace return side. I then ran that duct through an automated damper and to two 8" fixed inlets on the outside of my house. I don't have it knit into MH yet, but you can visualize the control. You have to separate the various controls of the furnace (fan, heat, A/C compressor,...). When T_outside<target AND humidity<target, then open damper and turn on fan. If T_outside>target, then close damper and run fan and A/C compressor Right now I run it manually through my thermostat by disconnecting the compressor line and putting the thermostat on auto cool with the damper open. Seems to work nice at night until it gets too humid. The net result of this is you get what you want without the whole house fan. Plus you can seal that opening which is a huge energy sink. -- View this message in context: http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18186.html Sent from the Misterhouse - User mailing list archive at Nabble.com. |
From: JimMH <jsk...@sb...> - 2013-07-01 02:20:41
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Sounds similar to my setup. I have a duct from outside to the return on the furnace but haven't used it much or automated it yet. Easier to use the WHF until I automate things somehow. How do you plan to have air exit the house when you use this inlet? What damper did you use? I have a variable speed furnace that only runs on low for "fan" so unless I figure out something else I will probably also break the line to the compressor relay and activate cool mode to pull in outside air. It will move a lot less air than a whole house fan though. -- View this message in context: http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18187.html Sent from the Misterhouse - User mailing list archive at Nabble.com. |
From: Kevin R. K. <ke...@kr...> - 2013-07-08 22:22:10
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All interesting ideas, my two cents: 1. Incoming air - I leave a couple of windows open all of the time (when the AC is off). It works for now in my area, but I realize it isn't ideal. I could automate the crank on a window, but given the force needed, I would be concerned about a pinching danger. I like the idea of a dedicated inlet duct, but I see two issues 1. this may violate building codes and 2. the cooling effect of a WHF is most noticeable near the open windows. If I want to cover multiple bedrooms, I would need multiple inlet ducts. 2. Humidity - This isn't an issue for me, but you can certainly add it as a parameter that is considered in the equation. 3. HVAC blower as a WHF - this would not be very effective for me. The WHF can pull all the air out of my house every 6 minutes. I haven't checked, but I doubt my HVAC blower can get anywhere near that. I think I am on to my second month with my WHF and I still love it. However, I can already see that it probably won't work for me during August as it is pretty ineffective unless the nightime low temp gets to about 60. On Sun, Jun 30, 2013 at 7:20 PM, JimMH <jsk...@sb...> wrote: > Sounds similar to my setup. I have a duct from outside to the return on > the > furnace but haven't used it much or automated it yet. Easier to use the > WHF > until I automate things somehow. How do you plan to have air exit the > house > when you use this inlet? What damper did you use? I have a variable speed > furnace that only runs on low for "fan" so unless I figure out something > else I will probably also break the line to the compressor relay and > activate cool mode to pull in outside air. It will move a lot less air > than > a whole house fan though. > > > > -- > View this message in context: > http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18187.html > Sent from the Misterhouse - User mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > ________________________________________________________ > To unsubscribe from this list, go to: > http://sourceforge.net/mail/?group_id=1365 > > |
From: JimMH <jsk...@sb...> - 2013-07-09 00:06:26
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You make some good points. The WHF will move a considerable amount more air than a furnace blower. Dew point is a much better indication of comfort than relative humidity. I have noticed that often the temperature at night dips to at or near the dew point. Dew points of much more than 60 are outside of the established human "comfort zone". Think that might explain why the WHF is effective if night time temps get down to 60. I haven't automated the WHF but turn it on if the early morning temps are at or close to 60. -- View this message in context: http://misterhouse.10964.n7.nabble.com/Temperature-Controlled-Whole-House-Fan-tp18077p18202.html Sent from the Misterhouse - User mailing list archive at Nabble.com. |
From: Tim S. <tps...@gm...> - 2013-07-31 17:10:17
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One other thing to code in is watching for extreme temperatures. I used to remember, but anything over 130F should be considered a fire situation and all ventilation should *stop*... Tim |