Author Topic: Zwave air vent  (Read 18241 times)

Offline AgileHumor

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Re: Zwave air vent
« Reply #15 on: March 16, 2014, 04:25:44 pm »
I have motion HSM motion sensors in each room that also give temp.  Once I calibrate their temp down a bit (since they are up high), I was going to just "bypass" (close vent) the current room if it is => the current HVAC set point. 

This could leave the logic simple, and in theory should not confuse the nest whom's programming is simply "heat until i reach set point" (unless away).

There is a special feature where it learns how long to pre-heat before the specified scheduled temp change, and it learns how long it takes to heat from say 67 to 71 degrees in the morning and will learn how long ti takes to heat cool.   That is turned off by default, but could be affected.

My main problem is my thermostat is down stairs, and not near a vent, so it takes a long time to warm that area.   I'm worries what happens when 50% of vents are bypassed that it won't get warmed at all.
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Offline Pseudomizer

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Re: Zwave air vent
« Reply #16 on: March 16, 2014, 04:42:27 pm »
Hmmm. So what we all really need is the following:

Z-wave controlled vents in every room, temperature sensors in every room and a specialized smart thermostat which is aware of all the rooms and has a built-in logic on how to most efficiently cool down those rooms and ideally based on occupancy and maybe predict the occupancy to save energy.

Sounds like a huge project and whoever comes up with an automated solution could be a hero.
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Offline AgileHumor

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Re: Zwave air vent
« Reply #17 on: March 16, 2014, 05:16:49 pm »
Do you speak French? :)
https://apps.mios.com/plugin.php?id=2968

I think this developer has 90% of the system already built.
« Last Edit: March 17, 2014, 11:14:49 am by AgileHumor »
WMC Leviton:18xVPE06,8xVRS15,3xVRP03-W,2xVRR15,4xVRCS4,2xVRCS2,VP00R,8xVRS15 Aeon:5xDSC06106,4xDSC24,4xDSC25,12xDSB29,2xDSC11,4xDSB54,DSB05,3xDSA22,DSA38,2xDSA03202B,DSB09104,HEM Other:3xYale,12xHSM100v3,7xSP103,45604,WDHA-12,SSA2USR,EVLCD1T,6xWWA02A,7xIPC-HFW2100,URTSI,Hue,Russound,OpenSprinker

Offline AgileHumor

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Re: Zwave air vent
« Reply #18 on: March 17, 2014, 10:43:15 am »
So I contacted the company this weekend as I did find 10" x 6" on their website.  They agreed to sell me the 10" model which is not in retail.

They are working on a Outside Gate Lock and a Water Flow sensor too.
http://econetcontrols.com/products.php
WMC Leviton:18xVPE06,8xVRS15,3xVRP03-W,2xVRR15,4xVRCS4,2xVRCS2,VP00R,8xVRS15 Aeon:5xDSC06106,4xDSC24,4xDSC25,12xDSB29,2xDSC11,4xDSB54,DSB05,3xDSA22,DSA38,2xDSA03202B,DSB09104,HEM Other:3xYale,12xHSM100v3,7xSP103,45604,WDHA-12,SSA2USR,EVLCD1T,6xWWA02A,7xIPC-HFW2100,URTSI,Hue,Russound,OpenSprinker

Offline BulldogLowell

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Re: Zwave air vent
« Reply #19 on: March 17, 2014, 11:00:58 am »
So I contacted the company this weekend as I did find 10" x 6" on their website.  They agreed to sell me the 10" model which is not in retail.

They are working on a Outside Gate Lock and a Water Flow sensor too.
http://econetcontrols.com/products.php

thanks for this, AgileHumor. 

The Gate Lock they are working on is cool.  I have been thinking about how to rig something up like that for a while.

Offline aaronsquire

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Re: Zwave air vent
« Reply #20 on: March 17, 2014, 01:15:59 pm »
Very neat. This would be great for our multi level home as upstairs gets hot in summer and cool in winter. We adjust our vents manually to try to get equal heating and cooling throughout entire home. If I programmed these to operate with temperature sensors could achieve that. They are a bit expensive but if I'm getting more consistant heating and cooling could pay for themselves... I have corner vents though. Don't see those on their website. Neat find though.
Thanks!

Offline garrettwp

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Re: Zwave air vent
« Reply #21 on: March 18, 2014, 03:04:03 pm »
Just ordered one earlier today. Question, does this report battery status?

- Garrett


Offline AgileHumor

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Re: Zwave air vent
« Reply #22 on: March 18, 2014, 04:11:12 pm »
Yes, it does report battery status :)

Manual states one year with alkaline batteries (2 x AAA) with 2 movements a day.  Manual says 2 years are possible with Lithium Ion.
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Offline agoodman82

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Re: Zwave air vent
« Reply #23 on: March 18, 2014, 08:23:17 pm »
Guys, correct me if I'm wrong but I had always heard that it's a bad idea to close off air vents in a forced air system because 1) The furnace or central AC now has to work harder to move the air which was already sized appropriately for the house it's operating in and 2) If a room's vent is closed to avoid having to heat it, the room now gets colder faster than the rest of the house and draws more hot air into that room as heat naturally flows from hot to cold areas, thus again making it inefficient to shut down a vent.

Would these vents (as cool as they are) actually be useful for climate control situations or would they just cause more potential problems than they would actually solve?

Offline BulldogLowell

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Re: Zwave air vent
« Reply #24 on: March 18, 2014, 08:36:04 pm »
Guys, correct me if I'm wrong but I had always heard that it's a bad idea to close off air vents in a forced air system because 1) The furnace or central AC now has to work harder to move the air which was already sized appropriately for the house it's operating in and 2) If a room's vent is closed to avoid having to heat it, the room now gets colder faster than the rest of the house and draws more hot air into that room as heat naturally flows from hot to cold areas, thus again making it inefficient to shut down a vent.

Would these vents (as cool as they are) actually be useful for climate control situations or would they just cause more potential problems than they would actually solve?

many people presently (including myself) do this manually with their existing louvers; sort of fine-tuning the distribution of the hot/cool air supply.  Whilst your point is very valid, you would have to significantly restrict a lot of outlets to affect the overall operation of the HVAC system.  I think people would use this to cut off a guest bedroom they don't regularly use or a single room that just gets too warm because it has much higher airflow; a consequence of the initial engineering and installation of the system.

Offline NHguy

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Re: Zwave air vent
« Reply #25 on: March 18, 2014, 08:52:02 pm »
These looks really cool. I have a finished basement and the only heat I have down there is 2 registers cut directly into one of my main ducts from the 1st floor heating zone. The registers are usually manually turned off, unless someone is planning to hang out in the basement. It never gets toasty down there, but good enough for the kids to play/watch movies (low to mid 60's dead winter when it's a high in the teens outside)

These vents seems perfect, can set these off a scene taking into account motion/temp/light switches, tie them in to kick the 1st floor thermostat if needed, etc. I'm looking at 4x12's and it wouldn't be simple to make them larger (a few inches of additional duct work extending from the main duct to make it go through the drop ceiling)

Question for anyone that has one in their possession: From what I've seen online, it looks like you loose a good 30% of the surface area that the air flows through the vents due to the controller that opens/closes the vent. This is the only reason I'm not pulling the trigger on 2 right now. Any comments on what you think of the airflow (compared to the ones that were replaced)?

Thanks!

Offline lemrock

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Re: Zwave air vent
« Reply #26 on: May 27, 2014, 03:53:01 pm »
I've found another wireless control air vent. Now, it's not Z Wave but it is rather cool (pun not intended) and the price is very cheap. It's called the Activent http://www.theactivent.com/ . It comes in two parts; the wireless vent and a controller. The vent and controller talk to each other and the controller acts like a wireless thermometer. You set the temperature you want the room to be at in the controller and the vent will then open or close to reach the desired temp. (This does not control your thermostat). You can have many temperature zones acting independently without a central controller and the added benefit on having individual remote control of each vent in your home.

Offline Pseudomizer

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Re: Zwave air vent
« Reply #27 on: May 27, 2014, 04:27:53 pm »
I've found another wireless control air vent. Now, it's not Z Wave but it is rather cool (pun not intended) and the price is very cheap. It's called the Activent http://www.theactivent.com/ . It comes in two parts; the wireless vent and a controller. The vent and controller talk to each other and the controller acts like a wireless thermometer. You set the temperature you want the room to be at in the controller and the vent will then open or close to reach the desired temp. (This does not control your thermostat). You can have many temperature zones acting independently without a central controller and the added benefit on having individual remote control of each vent in your home.

Looks interesting but they claim to be on smarthome.com and they are not. They are on the market since 2009 but I don't see any wide adoption and on the hvacsystems website the base model is out of stock.

The idea sounds great but honestly I am concerned because the thermostat will only kick in when it is too cold or too hot. If the room with the thermostat has the proper temperature it won't start cooling or heating so closing off vents or opening other vents won't do you any good. Maybe it is just me not getting it but this product sounds great but I don't think it is there yet. Open for corrections or suggestions ;-)
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Offline lemrock

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Re: Zwave air vent
« Reply #28 on: May 27, 2014, 06:01:21 pm »
This device obviously has to operate within the cycle and temp limits of the main thermostat. But if you have a room that tends to cool off or heat up faster than the room with the thermostat, then these activents would open and close to a temp you set within the thermostat temp limits. I agree there is very limited utility for this but interesting none the less.

Offline dzmiller

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Re: Zwave air vent
« Reply #29 on: May 27, 2014, 08:42:51 pm »
In some cases a duct booster on zwave on the power might provide more control. Furnace fan control from zwave is another way to even out temp, especially in a too warm room that has direct sun.
Direct sun can be determined by the weather app.