谁装过 smart thermostat ？

[noid2]

sensi屏幕可不小啊。我电池四年没换，还好使着呢

2节 AA 电池？你确认Wi-FI 是用电池供电而不是C-wire？
什么牌子的电池这么耐用？

[noid2]

方便不是就设好一个温度曲线，然后忘记吗？调它做什么？白天70F, 晚间没人的地方就60F. 晚上卧室70F, 白天有人就一直70F。不用经常调。一年调两次，一次拨到制冷，一次拨到暖气就完了。

“晚间没人的地方就60F. 晚上卧室70F”
这个是怎么做到的？
每个屋都有自己的控制系统？

[malta]

2节 AA 电池？你确认Wi-FI 是用电池供电而不是C-wire？
什么牌子的电池这么耐用？

duracell. 四条线没有C-wire。我也挺惊讶能挺这么久，到现在四年了，正常工作

[lsheng]

“晚间没人的地方就60F. 晚上卧室70F”
这个是怎么做到的？
每个屋都有自己的控制系统？

精确不到屋子，只能精确到区。比如，楼上，楼下，地下室。

[noid2]

精确不到屋子，只能精确到区。比如，楼上，楼下，地下室。

这是控制风门？
不会是有几个炉子吧。

[lsheng]

这是控制风门？
不会是有几个炉子吧。

锅炉和空调都是分区控制的。空调是两个控制两个区，锅炉是控制水阀分区送热水。

[noid2]

不知道市面上有没有控制风门的产品
应该节能显著。

[YouHi]

不知道市面上有没有控制风门的产品
应该节能显著。

有。我以前看Ask This Old House有介绍过。每个风门后面加一个能控制的damper。但是要拉线还是挺麻烦的。

而且后来有人说如果几个风门被关小，会影响blower/duct的工作效率，造成容易坏掉，其实得不偿失。后来市场上就没咋见到了。

[noid2]

有。我以前看Ask This Old House有介绍过。每个风门后面加一个能控制的damper。但是要拉线还是挺麻烦的。

而且后来有人说如果几个风门被关小，会影响blower/duct的工作效率，造成容易坏掉，其实得不偿失。后来市场上就没咋见到了。

可以跟炉子一起设计，看来这个市场还是很有潜力的。

[noid2]

duracell. 四条线没有C-wire。我也挺惊讶能挺这么久，到现在四年了，正常工作

看到抱怨电池的。
https://www.amazon.com/Emerson-Thermost ... geNumber=1

The thermostat is now eating the 2 AA batteries completely, from 100% to zero, in one day and the thermostat literally heats up. Its says it's 79 in a 68 degree room because the actual thermostat itself is putting out so much heat and eating batteries. I've tried about every brand of battery now and the same thing happens about 10x now. It will go dead with brand new batteries in a day or day and a half and disconnect. Also I've checked the entirety of the rest of the system and every thing is fine, other than the thermostat I disconnected it and let it sit for days with no battery and it still does the same thing when back in the wall with batteries. I've also tried the thermostats with the wifi off and it made no difference. It is noticably putting off heat and the temperature reading reflects that. Of coarse it's exactly a couple months after the one year warranty. I purchased in June 2021.....watch out. I'm going to contact Emerson but I'm not hopeful

[mrmaja]

看到抱怨电池的。
https://www.amazon.com/Emerson-Thermost ... geNumber=1

The thermostat is now eating the 2 AA batteries completely, from 100% to zero, in one day and the thermostat literally heats up. Its says it's 79 in a 68 degree room because the actual thermostat itself is putting out so much heat and eating batteries. I've tried about every brand of battery now and the same thing happens about 10x now. It will go dead with brand new batteries in a day or day and a half and disconnect. Also I've checked the entirety of the rest of the system and every thing is fine, other than the thermostat I disconnected it and let it sit for days with no battery and it still does the same thing when back in the wall with batteries. I've also tried the thermostats with the wifi off and it made no difference. It is noticably putting off heat and the temperature reading reflects that. Of coarse it's exactly a couple months after the one year warranty. I purchased in June 2021.....watch out. I'm going to contact Emerson but I'm not hopeful

还是老老实实拉线吧，这个应该很容易，因为已经有线了，把新线拴在旧线一头，线上喷点润滑剂，应该很容易拉

[mrmaja]

我最近刚把老的换成Nest thermostat， 带电池的，所以不用c-wire。
你可以买nest learning thermostat， 据说兼容90的暖气炉，不用加c-wire。

Nest不如ecobee和honeywell，除了外表炫酷一些

[cokecoke]

我也想问同样的问题，我的表停止工作了，需要换个新的，旧表只有两根线，用两节电池，不知道换什么样的新表最简单啊，估计nest 不拉新线不行吧，系统是传统的水暖暖气片模式。

[noles]

Nest不如ecobee和honeywell，除了外表炫酷一些

我的Ecobee 很不错。
我以前自己装的时候，在旧的mitbbs贴了图。可惜找不到了。

[noid2]

James W Wood
3.0 out of 5 stars Don't trust this device to control your house temperature while you're away for extended periods
Reviewed in the United States on December 6, 2023
Style: DIYPattern Name: ThermostatVerified Purchase
We travel a lot and are often away during cold winter months. I have customarily set our standard thermostat to 45 degrees on leaving the house. When we return during winter, we immediately reset the thermostat to 70. However, it takes nearly 24 hours for the slow climb from 45 to 70, so we huddle around portable electric heaters till the temperature's tolerable.
I thought that I'd be able to use this Sensi thermostat to start the temperature climb remotely a day before arriving. Device setup was necessarily a little involved, but the directions were completely adequate. After setup, I tested various functions using the app on my iPhone as well as using the buttons on the device. Everything worked as I expected, so I didn't mess with the device or its iPhone app further. However, the night before the morning that we were to scheduled to leave on another extended trip, I noticed that the house was getting awfully hot. I checked the Sensi thermostat and it was set for 69 (just where I had set it days before), but the actual temperature reading was 81. I tried turning off "heat" on the device, but the heat system stayed activated. I tried changing the thermostat setting to lower values --- again the heating system stayed on. I tried connecting to the device with my iPhone, but it would no longer connect.
As you'd expect, I removed the Sensi "smart" thermostat and reinstalled the "no smarts" old-school Honeywell bimetallic strip thermostat. It still worked fine, so I set it for 45 and we left on our trip. It's unacceptable for a smart thermostat to go rogue. Kind of like the computer named "Hal" in the movie 2001. I'll probably play with this Sensi smart thermostat whenever we return to the house again, but I'll never trust any "smart" thermostat again. I think using a smart thermostat is OK as long as you can checkup on your house daily, but my use case would require independent backup systems to automatically disable the "smart" thermostat if/when it goes rogue. Otherwise, it might cook or freeze everything in your house while you're away and you'd have no way of knowing.

[fard]

强力推荐Sensi，有全部按钮的那种，不需要adapter。

[zmz123]

向同学们汇报一下，通过一段时间的折腾，我的 wifi smart thermostat 终于装好了，现在在手机上就可以用了。很高兴

我装的是 sensi smart thermostat，我没有 c wire, 现在用两节电池。也可以装 24v adapter，外接电源

用电池似乎很耗电，不到一个月就没电了，也可能一开始用的电池不好，需要观察一下再做结论
RH, RC 口是通用的，图上显示红线接到RH，但师傅接到了RC，没有任何问题

蒸汽暖气炉有好几个box，里面都是各种各样的电线和接头。我这边调thermostat，那边师傅用万用表，可以测出暖气炉是否接受到这边的信号

感觉现在wifi smart thermostat 做的很好，我的这么老式的暖气都能装，大家的暖气都可以装

[zmz123]

强力推荐Sensi，有全部按钮的那种，不需要adapter。

你说的很可能就是我现在用的。还比别的牌子型号便宜

[zmz123]

我也想问同样的问题，我的表停止工作了，需要换个新的，旧表只有两根线，用两节电池，不知道换什么样的新表最简单啊，估计nest 不拉新线不行吧，系统是传统的水暖暖气片模式。

Emerson Sensi Wi-Fi Smart Thermostat

[Usmlesteps]

很简单。主要看原来有没有c wire, 没有的话要买不需要c wire 的。然后按说明书上接就可以了。