He No Just Invented The Internet Now This Thing Too!I have three of them so far. Beautiful device, fantastic interface and highly functional. Right up Apple's alley. Was developed with Al Gore VC money, so there are lots of Apple connections here
He No Just Invented The Internet Now This Thing Too!I have three of them so far. Beautiful device, fantastic interface and highly functional. Right up Apple's alley. Was developed with Al Gore VC money, so there are lots of Apple connections here
It totally slipped my mind that this needs power somehow. Not sure how it works (I don't know much about HVAC or thermostats in general) but looks like it charges itself? I wonder if maybe Nest uses a a better Li-ion battery similar to the batteries in MacBooks with longer lifespan (1000 charge cycles).
http://support.nest.com/customer/po...-the-nest-learning-thermostat-need-batteries-
The Nest Learning Thermostat is equipped with a self-recharging lithium-ion battery. This battery is charged through everyday use of the thermostat and doesn’t need a power adapter or charger. The lifetime of the battery is about 7-10 years and comes with a 5 year warranty.
While the Nest seems to support two-stage heating, it does not seem to support two or multi-stage *cooling*
I got one in Sunday. So far it is pretty cool. What I like most is being able to control my thermostat from my iPhone.
So it senses if you're in the house. What if your thermostat is in a room that isn't used very much?
But this power-from-furnace-or-AC can be problematic if you don't need either (ie, if the weather is just right). Then the Nest either pulses the furnace or AC to get some power, which can be problematic, or to avoid this needs an extra wire to supply it with electricity separately (which can be installed easily but it's yet one more wire you have to install).All thermostats use power continuously. It is supplied from the furnace/AC. It's 24v AC, I believe. Most of the programmable thermostats also come with a backup battery so that the program isn't lost every time the power is interrupted. That's the only reason it needs to have a battery.
That's a common myth. It takes roughly the same amount of energy to continuously keep a building at a specified temperature as it does to warm it back up to the same temperature after it was cooled down. You save energy between the time it takes for a space to stabilize and when heat is needed again. So the longer the setback (and the greater the temperature difference), the greater the energy savings. That's why having decent insulation and energy efficient windows are so important too—the best furnace in the world will keep running if there's leaks all over the house. Furnaces also tend to be more efficient when they're continuously working not being switched on and off.you have to be careful with how much you set back your thermostat. It can take more energy trying to warm it or cool it if you are trying to gain or drop too many degrees.
Apple Retail Stores will sell the Nest thermostat, according to a report from iLounge.
I don't think they would be selling them if they hadn't been created by Tony Fadell.
But this power-from-furnace-or-AC can be problematic if you don't need either (ie, if the weather is just right). Then the Nest either pulses the furnace or AC to get some power, which can be problematic, or to avoid this needs an extra wire to supply it with electricity separately (which can be installed easily but it's yet one more wire you have to install).
(I have no idea.)Hey Programmers, is this even possible? Is the GeoFencing concept open for third party apps?
Geofencing on iOS uses cell tower triangulation to increase battery life. It works very well in the Reminders app without a big battery hit.(I have no idea.)
...But that's an interesting thought. However, that could really hurt the iPhone's battery life. GPS uses a lot of juice.
I don't see why it would need an extra wire. The 24v should be supplied continuously to the thermostat no matter what kind of thermostat you have, unless perhaps if it's mechanical.
But this power-from-furnace-or-AC can be problematic if you don't need either (ie, if the weather is just right). Then the Nest either pulses the furnace or AC to get some power, which can be problematic, or to avoid this needs an extra wire to supply it with electricity separately (which can be installed easily but it's yet one more wire you have to install).
Then I stand corrected.Geofencing on iOS uses cell tower triangulation to increase battery life. It works very well in the Reminders app without a big battery hit.
you need a power, and a common wire.
A simple old fashioned mechanical thermostat is nothing but a bimetallic switch, so it would not require power. But I don't know anyone who uses one of them anymore.