I installed a nest learning thermostst in my parents 100 year old house with 2 wire heating system. The system worked well for a few weeks but it drove the boiler haywire as the thermostat was trying to steal power by turning it on and off. There was no c wire from the boiler. After researching, I purchased a external c wire power adapter from amazon and it worked like a charm. Almost 2 years gone and no trouble anymore. Wanted to share the experience because it took me a lot of digging. Installing a c wire was too complicated. This was a easy fix
Very similar to my situation ... Have a home originally built in 1912 (Sheesh, the year the Titanic sank ...lol). Which has an old two wire gas furnace. Installed a Nest gen. 3 like in the video several weeks ago, which appears to be working fine so far without a C wire. But since I read several comments that this could still cause problems later on, but running a C wire is too much of a hassle and didn't want the unsightly dangling wires of a plugin AC/AC adapter at the thermostat. Installed the new "Nest Power Connector" at the furnace that converts to two thermostat wires, R and W, into three, an R, W, and C wire. ua-cam.com/video/xlx2Um6D1Z8/v-deo.html
I've installed the nest and ecobee units at my home and for family. It is imperative to find a way to supply power via the "C" wire. That is needed because these electronic units don't have replaceable batteries. When the Li-ion battery dips in voltage below 3.16V, it goes haywire, and in my case it started to blow the fan inside my house with the outside temperature at 22 degrees. The pipes nearly froze. I connected the C +24V dedicated supply and it has worked flawlessly for many years now.
I have an Ecobee in my apartment. A dedicated 24 VAC transformer plugged in near the thermostat does the trick. You don't need a C wire for it to work, but without one you will need a dedicated power source!
I've had 2 of these in my house. I've installed 3 more at my family's houses. These nest thermostat have non replaceable Lithium Ion batteries. You must connect the "C" wire to a dedicated 24V supply on the furnace. Otherwise it tries to siphon electricity from the other wires when voltage dips around 3.7V on the battery. It will send the furnace into a tailspin during winter time with the blower fan going non stop. Easy recipe for frozen pipes in the winter.
This video showed me everything I needed to know. Then again I've come to expect professional demonstration from the pros at This Old House. Thanks Richard!
a couple years ago we switch energy companies and they offered this exact thermostat controller for free. honesty it's amazing and has dropped energy bill by a lot.
I’m surprised you guys didn’t speak about when you have high voltage, 120V, compared to low voltage, 24V, that are needed for smart thermostats. Are their any options in the smart thermostat range in the 120v range? If not how do I install a 24V transformer on my furnace or HVAC unit in order to be able to convert from a mechanical thermostat to a smart thermostat. Maybe a good chance for an update video as these thermostats are gaining more popularity as technology and smart homes progress. Ppl will inevitably have to convert voltage in their older home.
I'm sure they are fine for some simple installations. But for how much they cost and the problems people have had so far with them. Google nest updated causes no heat during ice storm. They've also caused alot of heat pumps to use more electricity by using aux heat strips to recover temperature. Also if you have a high seer system with bells and whistles, you are most likely better off using that systems recommended tstat. Its possible they have improved but they caused so many issues at launch and for a while after it is hard to recommend them to anyone.
I need to invest in one of these for my new home. I get tired of having to adjust the temperature all the time. This would save me a lot of money for sure.
This may seem a few bubbles off plumb but read a bit further... I see issues with these all the time when used in a heating / cooling situation on a home equipped with a stand by generator. The problem happens when the power goes out and someone has wired the t-stat to grab it's 24 volts from the AC side, which is usually not connected to the gen set. Ok, so it's winter and I get the call that there's no heat so the customer thinks we screwed up and didn't connect the boiler or furnace. I verify that's connected but the t-stat is a recent addition and THAT is not wired correctly. Typically someone swapped the RH (heat) with the RC (cool) wire so basically the t-stat has no power when the house is running on the gen set. (but they are both hot when utility is present so doesn't matter) Reading further.... oh, the Wi-Fi part is not working during a power failure and I have to ask where that other router is and if the cable internet is even working in this crappy weather. Some people want wireless remote control no matter what...and it ain't gonna happen! You want fewer problems? Keep everything on the simple side!
I watched this video and other bunch to install my smart thermostat, but it didn't fix the problem because like this guy said to install the wires as color patterns. Unfortunately, in my case, I took the picture of the wire how it was attached before removing from the old one. Thanks to this person who showed to take the picture and which I did. First, I installed like the color patterned and it did not work and my house was getting cold 9 at night. I followed the picture of the wire from the old thermostat and put it the way on the new one and my heater started working. 😉
A large amount of people see these online, at Home Depot, Lowes, etc. and think that they will automatically work for their home application. This is not always the case. In many instances; Particularly with homes that have oil or gas fired heating systems and no central air conditioning they will have thermostats running off of only two wires. A red and a white. These smart thermostats, specifically the Nest thermostats, want to have 24 volts of electricity provided to them via a transformer. In the case of just a red and a white wire you will not be providing adequate voltage to the thermostat and it will end up running off of the internal battery. The battery in these thermostats exists to maintain settings during a power outage or during electrical work where power would be turned off for your equipment. You may experience problems with your smart thermostat if you attempt to install it without proper wiring. It's important to know what you have before you go out and spend $200+ on a smart thermostat or you should be at least prepared to have a transformer installed alongside replacing the thermostat wires if needed.
You can, but should you? I've been to several customer's houses where they've had complaints about the longevity of the thermostat's battery as well as issues using wifi on the thermostat because of low battery voltage as a direct result of not having a dedicated 24v provided to the thermostat. The thermostat will only charge when the unit is running. In this case, if the unit is not run frequently enough, the Nest thermostat may even simulate a call for heat for a very brief period - in pulses - as a last resort. It can only charge itself with a bridged connection - AKA when there is a call for heat, so 2 wire setups with less frequent usage on their equipment are prone to suffering from battery issues. The "pulsing" of your equipment in most cases would be fine, but in some instances it may result in damage and/or a noticeable amount of noise. So just because it's possible to run them on only a red and white wire doesn't mean that you should.
I just installed the gen3 Nest today and didn't have a common wire. I was going to call someone to help with this, but looked at one of their instructional videos and it said it might work with what I had. I have the yellow, red, white, and green wires. So I gave it a try and it seems to be working fine. This is an older Rheme AC with heat when needed. (Florida). Would I run into the same problem you're describing? Just curious.
In these it's in an IC chip that turns it on and off. On Dumb ones it's a coiled piece of tungsten that moves enough with changes in temperature to trigger one relay to the left or right and the temp set adjusts where they point is.
I have an inconsistent work schedule. The Nest gen3 also has geo-fencing which is kind of cool. Say you're within a certain distance of heading home, you can have it adjust to your comfort temp before arriving. Same with going out. Or you can just use the app on the fly. It uses your phone's GPS.
Nice video. I have an old Coleman floor furnace. Probably at least 60 years old. Thermostat is mercury switch with only 2 wires. How do i know where to connect wires on a smart thermostat? Thx. Marty
you dont. your wiring is too old to work with this. the only way would be to replace the furnace and put in all new wires, which obviously wouldnt be worth it unless the furnace was already broken and needed replacing. you are kinda stuck with what you got.
My Lennox wifi thermostat replacement cost me a little less than 900 hundred dollars,trip charge,with condenser washed,check freon (none added) ,warranty 5 years(not very good)
There is a lot more to setting up this stat. For instance, it's a headache and a half to get it set to your router if it is at all possible. Customer support sucks and even says they'll charge for a guy to come out and do it for you. Even then it may not be possible. It should be plug and play. Since it's not it's just a very expensive stat that has a mind of it's own and it constantly changes your settings.
question about the motion detection in the house im in, the thermostat is mounted on a wall nobody walks by it is in a room that is not used much facing into the room so how will this effect it ?
It will think no one is home. However there is a solution for this. Two of them. The first one is easy, Nest now makes individual room sensors that connect to the main Nest thermostat, buy one sensor and put it right in your living room. Problem solved. You can even have one in each room, so it keeps the occupied rooms at the set temperature and ignores the the temperature of the unoccupied rooms. The second option is to relocate the wall that you mount your thermostat on, is a fairly easy job, something you can do yourself.
Ours has become a total nightmare, heating and cooling guy told me to get rid of it. Way to sensitive to power fluctuations. The other day the display was flashing "touch yourself", very hackable
Isnt 55 terribly cold. I keep the house between 67 when I'm gone and 70 to 71 when I'm here. Do folks really set to so much cooler in the day while at work ?
Seems so easy in this video but these things are a nightmare to hook up especially if there's no C-wire for constant power supply. Two wire systems are absolute nightmare for Nest thermostat installation.
My existing thermostat has 2 wires. Red and White for heat only. Nest 2020 requires C wire. If I use a transformer, where do I connect the wires transformer wires? Nest 2020 has O/B, G, Y, C, R, W terminals.
You don't NEED wifi, you can use it like a good ol' thermostat by adjusting physically. It's super convenient when you connect to wifi and can remote access your thermostat.
I am interested in installing this in my house but we have 3 different thermostat controls , 1 in the basement , 1 on the main level and one in the basement so my question is do all 3 need to be replaced or just the one on the main level that is digital?
Great video. I only had one question. I wish he broke out a multi meter to test the voltage for the common wire. Newer Nests require a C wire aka common wire. Old homes may not have that. Thank you. Great video all the same. Now get the paint. lol.
After watching this show, I bought the Nest thermostat and I was able to install it myself. We keep getting this Error ( WIRING REPORT E74 ) with no power to the RH wire. We have taken all the wires out and rewired it again. We still get the same error. Do you have any ideas or suggestions for fixing this issue?
sometimes they have a kit that you have to connect to inside the furnace itself. Not sure about Nest but Echobee has a kit with its thermostat if you don't have a C wire.
I got a smart thermostat, Trane XL 950. But now it has never been updated. When I purchased it, the instructions said it could be updated on line. but no more. Now they want you to call a local Trane dealer and have him update it. All it takes is an SD card. The dealer downloads the program on the card and comes and puts it in the thermostat, Thats it. But I can't do that. Help
great if you have a set 7 day schedule. but what about someone who works a 3/2 shift? would it be able to keep up with monday tuesday work, wednesday thursday off, friday saturday sunday work, monday tuesday off, wednesday thursday work, friday saturday sunday off . ? basicly i would need a 2 week cycle
R is not heat. W is not fan. Here is the correct colors: R is power supply, ie the hot wire. You can touch this wire to any of the other wires to complete the circuit and request that function to be on. Y is for cooling. W is for heating. G is for fan. But be careful with C (black) and never touch R to C as that would be a dead short between hot and common and blow the fuse.
Its the way the thermostat charges its battery. If the common wire is not wired from heating system to the nest. It will become a power stealing/robbing thermostat. The circuitry will steal a little power at a time to recharge the battery . problemd I have found is that you will have no heat or overheating . in same cases burn out the control board in heating/cooling systems. Most WiFi stats require C common , nest does not it can be installed either way. I'm in the north east we have a lot of homes with only 2 wire heating system , We have to charge customers to run a new thermostat wire so there heat will work right . yes they are some people that have the nest wired with no common, and its works just fine. Those are not calling me in the middle of the night when its zero degrees out.. Look up ecobee or Honeywell thermostats they both explain what power stealing / robbing is.
Unfortunately I have a boiler/radiant heat system which requires you to set your temp and forget it. I always wanted a Nest, but it would just be a big waste of money for me :-(
The odd thing is my builder told us not to turn temps up and down. They said that uses more energy as the system plays catchup. Maybe the rules are different for new construction homes though. House was finished the beginning of 2018.
I installed a nest learning thermostst in my parents 100 year old house with 2 wire heating system. The system worked well for a few weeks but it drove the boiler haywire as the thermostat was trying to steal power by turning it on and off. There was no c wire from the boiler. After researching, I purchased a external c wire power adapter from amazon and it worked like a charm. Almost 2 years gone and no trouble anymore. Wanted to share the experience because it took me a lot of digging. Installing a c wire was too complicated. This was a easy fix
Hmm... I think you meant to say, "Installing a C-wire _WASN'T_ too complicated."
@@CitizenPerkins i meant running a new wire from the boiler was too complicated. This was an easier alternative.
I don't understand why he doesn't mention the c-wire (or not) issue.
Very similar to my situation ...
Have a home originally built in 1912 (Sheesh, the year the Titanic sank ...lol). Which has an old two wire gas furnace.
Installed a Nest gen. 3 like in the video several weeks ago, which appears to be working fine so far without a C wire.
But since I read several comments that this could still cause problems later on, but running a C wire is too much of a hassle and didn't want the unsightly dangling wires of a plugin AC/AC adapter at the thermostat.
Installed the new "Nest Power Connector" at the furnace that converts to two thermostat wires, R and W, into three, an R, W, and C wire.
ua-cam.com/video/xlx2Um6D1Z8/v-deo.html
This this old house still coming in clutch!! I remember watching this with my parents when was a kid now at 32 its just me.
1:30 Hey the cameramen was in basement already. Why he didn't flip the switch to off.
Hahaha I think I enjoyed your comment more than you intended, thank you!
Maybe it was just a camera on a tri pod and no camera person
He was there to show the lady which switch to shut off
The camera guy was hiding in the dark
Why?
I've installed the nest and ecobee units at my home and for family. It is imperative to find a way to supply power via the "C" wire. That is needed because these electronic units don't have replaceable batteries. When the Li-ion battery dips in voltage below 3.16V, it goes haywire, and in my case it started to blow the fan inside my house with the outside temperature at 22 degrees. The pipes nearly froze. I connected the C +24V dedicated supply and it has worked flawlessly for many years now.
I have an Ecobee in my apartment. A dedicated 24 VAC transformer plugged in near the thermostat does the trick. You don't need a C wire for it to work, but without one you will need a dedicated power source!
Best video and after watching this, it took me 15 minutes each to install two of them in my house.
I like how he let her touch the wires first to make sure the power was off lol!!!
Mike on a Bike lol
Mike on a Bike YA CANT TRUST A BITCH 😂😂
24 volts isn't going to kill her.
@@polishtheturdmickelson5473 😂😂😂😂
Sounds like someone is scared of 24v😥
I've had 2 of these in my house. I've installed 3 more at my family's houses. These nest thermostat have non replaceable Lithium Ion batteries. You must connect the "C" wire to a dedicated 24V supply on the furnace. Otherwise it tries to siphon electricity from the other wires when voltage dips around 3.7V on the battery. It will send the furnace into a tailspin during winter time with the blower fan going non stop. Easy recipe for frozen pipes in the winter.
👍🏼
I o0
Nest fixed that in a software update.
What color is the C wire?
@@dongertan3320 I just installed one, colors aren't exact for ID but typically it's blue if all colors were set up right.
Man I have had mine for nearly over 5 years. Welcome to the 21st century This Old House!
For me, old-school is the 21st century.
This video showed me everything I needed to know. Then again I've come to expect professional demonstration from the pros at This Old House. Thanks Richard!
Amazing! Not complicated to install at all just basic thermostat wiring. Great video!
a couple years ago we switch energy companies and they offered this exact thermostat controller for free. honesty it's amazing and has dropped energy bill by a lot.
2:58 is she checking him out?
she was nervous
loooool (^.^)
Oh definitely. He is just so sexy. How could she help herself?
she was turned on by the screwhole action.
I thought you were kidding at first, but, yes, she was fantasizing about the repair guy. Too funny.
This video showed me everything I need to know but how to actually wire it up 😅😅😅
Can you adjust with cell phone WiFi when not at home?
The video should have addressed the 'C' wire potential issue...
Lady: powers off
Richard: and theres your new thermostat hope you like it
Ending credits
I’m surprised you guys didn’t speak about when you have high voltage, 120V, compared to low voltage, 24V, that are needed for smart thermostats. Are their any options in the smart thermostat range in the 120v range? If not how do I install a 24V transformer on my furnace or HVAC unit in order to be able to convert from a mechanical thermostat to a smart thermostat.
Maybe a good chance for an update video as these thermostats are gaining more popularity as technology and smart homes progress. Ppl will inevitably have to convert voltage in their older home.
I am a commercial a/c tech and would recommend staying away from the nest t-stat.
why? I was thinking of getting one
I'm sure they are fine for some simple installations. But for how much they cost and the problems people have had so far with them. Google nest updated causes no heat during ice storm. They've also caused alot of heat pumps to use more electricity by using aux heat strips to recover temperature. Also if you have a high seer system with bells and whistles, you are most likely better off using that systems recommended tstat.
Its possible they have improved but they caused so many issues at launch and for a while after it is hard to recommend them to anyone.
Yeah right ok right yeah yes yeah right yeah yeah right ok yes wow oh yeah yes amazing
😂😂
The Nest is what I have in my house and it was so easy to install. Incredible piece of technology. Saved me a bunch the next year.
As soon as he left she pulled it back off and installed the plate so she doesn't have to bother with patching and painting
I need to invest in one of these for my new home. I get tired of having to adjust the temperature all the time. This would save me a lot of money for sure.
Not really
@@dsantostv3711 yeah it would.
This may seem a few bubbles off plumb but read a bit further... I see issues with these all the time when used in a heating / cooling situation on a home equipped with a stand by generator. The problem happens when the power goes out and someone has wired the t-stat to grab it's 24 volts from the AC side, which is usually not connected to the gen set. Ok, so it's winter and I get the call that there's no heat so the customer thinks we screwed up and didn't connect the boiler or furnace. I verify that's connected but the t-stat is a recent addition and THAT is not wired correctly. Typically someone swapped the RH (heat) with the RC (cool) wire so basically the t-stat has no power when the house is running on the gen set. (but they are both hot when utility is present so doesn't matter) Reading further.... oh, the Wi-Fi part is not working during a power failure and I have to ask where that other router is and if the cable internet is even working in this crappy weather. Some people want wireless remote control no matter what...and it ain't gonna happen! You want fewer problems? Keep everything on the simple side!
He is a true genius jack of all trades
0:30 Bellows? Try, "bimetallic coil".
Oscar winning performances right there
I watched this video and other bunch to install my smart thermostat, but it didn't fix the problem because like this guy said to install the wires as color patterns. Unfortunately, in my case, I took the picture of the wire how it was attached before removing from the old one. Thanks to this person who showed to take the picture and which I did. First, I installed like the color patterned and it did not work and my house was getting cold 9 at night. I followed the picture of the wire from the old thermostat and put it the way on the new one and my heater started working. 😉
A large amount of people see these online, at Home Depot, Lowes, etc. and think that they will automatically work for their home application. This is not always the case. In many instances; Particularly with homes that have oil or gas fired heating systems and no central air conditioning they will have thermostats running off of only two wires. A red and a white. These smart thermostats, specifically the Nest thermostats, want to have 24 volts of electricity provided to them via a transformer. In the case of just a red and a white wire you will not be providing adequate voltage to the thermostat and it will end up running off of the internal battery. The battery in these thermostats exists to maintain settings during a power outage or during electrical work where power would be turned off for your equipment. You may experience problems with your smart thermostat if you attempt to install it without proper wiring. It's important to know what you have before you go out and spend $200+ on a smart thermostat or you should be at least prepared to have a transformer installed alongside replacing the thermostat wires if needed.
Nest compatibility chart and videos show you can run a 3rd gen Nest with R & W
You can, but should you? I've been to several customer's houses where they've had complaints about the longevity of the thermostat's battery as well as issues using wifi on the thermostat because of low battery voltage as a direct result of not having a dedicated 24v provided to the thermostat. The thermostat will only charge when the unit is running. In this case, if the unit is not run frequently enough, the Nest thermostat may even simulate a call for heat for a very brief period - in pulses - as a last resort. It can only charge itself with a bridged connection - AKA when there is a call for heat, so 2 wire setups with less frequent usage on their equipment are prone to suffering from battery issues. The "pulsing" of your equipment in most cases would be fine, but in some instances it may result in damage and/or a noticeable amount of noise. So just because it's possible to run them on only a red and white wire doesn't mean that you should.
I just installed the gen3 Nest today and didn't have a common wire. I was going to call someone to help with this, but looked at one of their instructional videos and it said it might work with what I had. I have the yellow, red, white, and green wires. So I gave it a try and it seems to be working fine. This is an older Rheme AC with heat when needed. (Florida). Would I run into the same problem you're describing? Just curious.
A HVAC tech, I don't do residential work. I thought you needed a common wire going to them in all installs?
I like my programmable thermostat. It performs just fine with all the time and temperature settings available.
Wow 55 degrees. They got 💰
Sheree Sims mine is 80 is this ok?
@@PoodleMaster69 mine is 82 for the summer
@@Datsun7705 70f year round
@AsSeenOnTV you need to calm down. You are getting very triggered by an internet comment.
@@Murmurrr that's because their comments are unrealistic
Can't wait to install this at my holy baptist church!
kruff39 lol
The Nest is the best thermostat I've ever had. I have it in two houses and love it.
He got pissed when she wasnt taking the screws out quick enough lol
That is good for winter but what about summer cooling?
Make sure your t-stat wire is gauge 18 or lower. The Nest pulls more current than most t-stats.
I just got this for my new boiler, but I had to use an AC adapter for the Common wire since my wiring only has 2 wires (white and red).
Thanks for the video guys!
So what’s in thermometers nowadays if the mercury ones aren’t used?
In these it's in an IC chip that turns it on and off. On Dumb ones it's a coiled piece of tungsten that moves enough with changes in temperature to trigger one relay to the left or right and the temp set adjusts where they point is.
The installer didn't even cut the wire back for the new terminals.
Do you have paint? Yes. But do you have 5-minute drywall mud and sandpaper?
Does this make sense for people with inconsistent work schedule?
I have an inconsistent work schedule. The Nest gen3 also has geo-fencing which is kind of cool. Say you're within a certain distance of heading home, you can have it adjust to your comfort temp before arriving. Same with going out. Or you can just use the app on the fly. It uses your phone's GPS.
Nice video. I have an old Coleman floor furnace. Probably at least 60 years old. Thermostat is mercury switch with only 2 wires. How do i know where to connect wires on a smart thermostat?
Thx.
Marty
that will not work with the nest
Cheapskate, if your furnace is 60 years old. That nest t stat isn't going to help you out.
you dont. your wiring is too old to work with this. the only way would be to replace the furnace and put in all new wires, which obviously wouldnt be worth it unless the furnace was already broken and needed replacing. you are kinda stuck with what you got.
Wow, This Gadged Is A Dream
Buying one tomorrow
My Lennox wifi thermostat replacement cost me a little less than 900 hundred dollars,trip charge,with condenser washed,check freon (none added) ,warranty 5 years(not very good)
Nice! now I just need to fine a home with more then 2 wires for the thermostat
There is a lot more to setting up this stat. For instance, it's a headache and a half to get it set to your router if it is at all possible. Customer support sucks and even says they'll charge for a guy to come out and do it for you. Even then it may not be possible. It should be plug and play. Since it's not it's just a very expensive stat that has a mind of it's own and it constantly changes your settings.
easy enough... however what if the wire coming through the wall only has 2 wires? Will this still work with this type of smart thermostat?
Yes we understand that but did you test see if it's work properly???????
Was that like an iPhone 1 he took a picture of the wires with?? Lol 😂
question about the motion detection
in the house im in, the thermostat is mounted on a wall nobody walks by
it is in a room that is not used much facing into the room
so how will this effect it ?
It will think no one is home. However there is a solution for this. Two of them. The first one is easy, Nest now makes individual room sensors that connect to the main Nest thermostat, buy one sensor and put it right in your living room. Problem solved. You can even have one in each room, so it keeps the occupied rooms at the set temperature and ignores the the temperature of the unoccupied rooms. The second option is to relocate the wall that you mount your thermostat on, is a fairly easy job, something you can do yourself.
Rob, you can get the next protect which is a smoke alarm. It has a motion sensor in it that communicates back to the thermostat.
Yes it’s easy but trying removing Honeywell’s redline system from the boiler. That’s hard
Ours has become a total nightmare, heating and cooling guy told me to get rid of it. Way to sensitive to power fluctuations. The other day the display was flashing "touch yourself", very hackable
Hope he put that blue wire to C Terminal and checked the wiring from control board.
Isnt 55 terribly cold.
I keep the house between 67 when I'm gone and 70 to 71 when I'm here.
Do folks really set to so much cooler in the day while at work ?
nice shiny round thermostat on rough wall from old thermostat
I I just installed the nest thermostat 3rd generation and I like it a lot
Seems so easy in this video but these things are a nightmare to hook up especially if there's no C-wire for constant power supply.
Two wire systems are absolute nightmare for Nest thermostat installation.
I looked into this but found I dont have a C Wire. What do we do then?
@@markschommer7407 buy a 24V transformer as a C wire replacement.
My existing thermostat has 2 wires. Red and White for heat only.
Nest 2020 requires C wire. If I use a transformer, where do I connect the wires transformer wires? Nest 2020 has O/B, G, Y, C, R, W terminals.
Got a question:
I don’t have my WiFi running yet.
Can I still install and use the thermostat, or is it required to have WiFi for it to function?
You don't NEED wifi, you can use it like a good ol' thermostat by adjusting physically. It's super convenient when you connect to wifi and can remote access your thermostat.
Do some programabe themostats have a way that the blower and burner are tuned on directly by it?
Are the thermostats with humidistat a good replacement?
My old termostat has a numbers. 1 red,2grey,3 orange,4 green. Could you please tell me which one goes where on Nest? Thank you
You have to go to the furnace to see where they are hooked up.
What about C connection?
What are all the other wire connectors for on the Nest?
power, activation to heat, activation to cool, activation to fan, signal to system monitor.
Very clever gadget. .....and with a nice design as well. ......sure need one of those ahead.
i have a taco sr503-3 raley can i connect a nest thermostat
What if the thermostat need 24 ac to run ? Gas furnace Honeywell aqua stat primary cotrol
I am interested in installing this in my house but we have 3 different thermostat controls , 1 in the basement , 1 on the main level and one in the basement so my question is do all 3 need to be replaced or just the one on the main level that is digital?
Great video. I only had one question. I wish he broke out a multi meter to test the voltage for the common wire. Newer Nests require a C wire aka common wire. Old homes may not have that. Thank you. Great video all the same. Now get the paint. lol.
Not necessary.
she should have let u place the plate to cover the old holes and un painted trim... looks nasty around the new thermostat
Wasn't necessary because the homeowner said she has extra paint to touch up the unpainted areas.
I have a Honeywell thermostat, can I install a Nest thermostat if my I have gas heater?
The type of heater doesn’t matter.
Yes
Can I install in a only 2 wire thermostat
No you can’t
Yes you can. But it’s more complicated because you need to add a power transformer at the thermostat and supply power from a nearby outlet.
Can use this an a 2 wire thermostat
Odilio Juarez yes
After watching this show, I bought the Nest thermostat and I was able to install it myself. We keep getting this Error ( WIRING REPORT E74 ) with no power to the RH wire. We have taken all the wires out and rewired it again. We still get the same error. Do you have any ideas or suggestions for fixing this issue?
You guys are the best!
worked great!
Wow that looked so easy
Wow it's that simple
I cut off power to entire circuit breaker and my thermostat was still on! Any advice for the problem?
what would be a good thermostat to replace the old electric thermostats
The old tried-and-true mechancal thermostats, in my opinion.
How to connect Samsung HVAC adapter(tadpt2) to Samsung mini split with 3rd party Thermostat, Nest.
Power is off ? Really , u trusted her what if she switched a different switch?
Like that Rick and Morty episode when Morty flipped the wrong switch 😂
powers off and lights are on?
Kevin Bolsajian that was just for the thermostat
Are there any smart thermostat for older house with 2 wires? 🤔
I have an older home that only had to wire for the AC side but the installer connected the common 24 V wire To power the thermostat.
Where the other wires go the c wire from the old unit?
dont have wire c ,what can i do
sometimes they have a kit that you have to connect to inside the furnace itself. Not sure about Nest but Echobee has a kit with its thermostat if you don't have a C wire.
I got a smart thermostat, Trane XL 950. But now it has never been updated. When I purchased it, the instructions said it could be updated on line. but no more. Now they want you to call a local Trane dealer and have him update it. All it takes is an SD card. The dealer downloads the program on the card and comes and puts it in the thermostat, Thats it. But I can't do that. Help
great if you have a set 7 day schedule. but what about someone who works a 3/2 shift? would it be able to keep up with monday tuesday work, wednesday thursday off, friday saturday sunday work, monday tuesday off, wednesday thursday work, friday saturday sunday off . ? basicly i would need a 2 week cycle
They don't make a thermostat for you. Sorry
R is 4 heat what is w for?
I believe it's usually for the Fan...
R is not heat. W is not fan. Here is the correct colors: R is power supply, ie the hot wire. You can touch this wire to any of the other wires to complete the circuit and request that function to be on. Y is for cooling. W is for heating. G is for fan. But be careful with C (black) and never touch R to C as that would be a dead short between hot and common and blow the fuse.
What did you do about the C wire?
+Doni Nelkenbaum he completely avoid it . blue wire was on B was it a heat pump system?
+Paul Ricardo BTW nest stat is power robbing . I would highly recommend hooking up Common wire .
Its the way the thermostat charges its battery. If the common wire is not wired from heating system to the nest. It will become a power stealing/robbing thermostat. The circuitry will steal a little power at a time to recharge the battery . problemd I have found is that you will have no heat or overheating . in same cases burn out the control board in heating/cooling systems. Most WiFi stats require C common , nest does not it can be installed either way. I'm in the north east we have a lot of homes with only 2 wire heating system , We have to charge customers to run a new thermostat wire so there heat will work right . yes they are some people that have the nest wired with no common, and its works just fine. Those are not calling me in the middle of the night when its zero degrees out.. Look up ecobee or Honeywell thermostats they both explain what power stealing / robbing is.
Unfortunately I have a boiler/radiant heat system which requires you to set your temp and forget it. I always wanted a Nest, but it would just be a big waste of money for me :-(
Great video!
The odd thing is my builder told us not to turn temps up and down. They said that uses more energy as the system plays catchup. Maybe the rules are different for new construction homes though. House was finished the beginning of 2018.
Chad Bremer This is something that I have not yet learned. Is it better to turn the system off or keep the temp constant? I have no idea.
What if a older house only have two. Heatinf. Wired color??
Than you can either run a new thermostat wire or stick with a good simple thermostat
GREAT video. I am getting one of these and they gave me confidence to do it. LOL.
Did they have common hooked up on the B terminal?
My thermostat only has 2 wires. How do I install this?
Run new thermostat wire. You can't do it with 2 wires.
what if the thermostat is in a room that I don't go in and the motion sensor doesn't see me? should I not buy one
You can link it to your phone, so if your phone is in the house, the thermostat will assume you're home.
Can I set the temperature of my house from my smartphone when I am away?
Yes.
Always check that the user has switched off the electricity properly and not a wall socket
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