/r/thermostats

Photograph via snooOG

Welcome to r/Thermostats, an 8-year-old community for all things related to thermostats and heating tech! Whether you’re interested in the latest smart thermostats, energy-saving tips, or HVAC innovations, this is the place to discuss, explore, and learn. Please include the model number when asking questions for accurate help. ⚠️ DIY thermostat work may pose fire risks, and your insurance may not cover mishaps. This subreddit is not liable for any advice given here—proceed with caution!

Welcome to r/Thermostats, an 8-year-old community for all things related to thermostats and heating tech! Whether you’re interested in the latest smart thermostats, energy-saving tips, or HVAC innovations, this is the place to discuss, explore, and learn. Please include the model number when asking questions for accurate help. ⚠️ DIY thermostat work may pose fire risks, and your insurance may not cover mishaps. This subreddit is not liable for any advice given here—proceed with caution!

/r/thermostats

3,191 Subscribers

1

Thermostat recommendation with temporary override or temporary hold only

Looking for a recommendation for a thermostat that only allows a temporary override (or hold) and not a permanent one.

This is for a conventional forced air furnace with nothing fancy and doesn't need Internet or smart home connectivity.

I have a MRCH1 on Mitsubishi mini split unit and it has the exact feature I'm looking for: commercial mode allowing for a temporary hold only.

Being able to lock out the ability to change the schedule like on the MRCH1 would be a plus too.

0 Comments
2024/12/18
15:46 UTC

1

How Can I Install A Smart Thermostat?

I need help figuring out what thermostat I can replace the one I have with. I have live in a condo that controls the heat and AC hence the W/Y wire I think, so I’m not sure if this’ll be possible or how to accommodate.

Don’t quite need a smart thermostat but it would be preferred. Otherwise, just looking to replace with a thermostat that can allow for scheduled temperatures.

2 Comments
2024/12/18
14:24 UTC

1

I need a thermostat suggestion!! Please help

I recently bought a thermostat a couple years ago. It’s a Sensi thermostat and it has worked fine my house drops a degree in winter quickly causing it to cycle on like every 2 minutes. I set it at 69 and it turns back on when it reaches 68 or even when it reads 69 still. So it’s constantly running. Is there a thermostat that I could buy and have my set temp at 69 and have it drop 4 degrees before cycling back on? This would save me massively on my gas bill.

9 Comments
2024/12/18
13:45 UTC

1

Thermostat upgrade advice

I'm looking for some advice on moving to a smart thermostat or even just a more modern fully programmable one.

The cabling on mine seems quite different to what I see online even other HV (240v) ones which is why I was hoping someone else might have experience with a similar setup. I live in an apartment block in Australia with ducted heating and cooling system so it seems to be more complex than a lot of others.

Pictures of the thermostat wiring and specs here: https://imgur.com/a/johnson-controls-5200-tf-9js0-BQZormP

Would love any advice or ideas on this.

0 Comments
2024/12/18
13:29 UTC

0

Can someone please ID?

14 Comments
2024/12/17
23:38 UTC

1

Please help how to wire to Amazon thermostat

I have six wires connected plus a jumper. I also see an orange wire not being used. how Do I connect to the Amazon thermostat with the 7 wires I see please help

5 Comments
2024/12/17
23:10 UTC

2

How to turn off?

I have it set to 60 but it is constantly well over 80 in my apartment. Is there a way to turn it off? Only way I can interact with it is a little lever on the bottom that I use to set the temp.

2 Comments
2024/12/17
00:59 UTC

1

Help! My thermostat reads this and can't be changed!

3 Comments
2024/12/16
23:31 UTC

1

Smart Thermostat - apartment - no c wire

Install Smart Thermostat - apartment - No c-wire

Trying to see how I can replace my current thermostat with a smart thermostat. Don't seem to currently have a cwire and since it is an apartment building I also don't have access to the heat/cooling sysytem control panel to install a c-wire adapter or do anything on that end of the system - limited to just what is in my unit

Included a picture of the current wiring

Any suggestions?

1 Comment
2024/12/15
17:42 UTC

1

Two thermostats in one big room

Question, which way saves money? Turning on one thermostat setting it to 70 degrees or setting both thermostats at a lower temperature? Is it more about the temperature setting, or the amount of thermostats being used at the same time that drive up costs?

5 Comments
2024/12/15
11:41 UTC

1

Want to upgrade to programmable thermostat, preferably WiFi capable. Currently have a 2003 Honeywell RTH6360D1002

Suggestions??

3 Comments
2024/12/15
05:10 UTC

2

What can I upgrade this to?

This is the thermostats we have for our hydronic baseboard heating. Is this possible to go to a smart system such as the google nest? Or anything that could just update this to not appear like it’s so outdated?

4 Comments
2024/12/14
17:27 UTC

1

Help with Kasco C-10 Thermostat De-Icer Control 110225

This might be a pretty niche question but I have Kasco C-10 thermostat that turns on a de-icer in my pond to provide water circulation during the winter months. I recently had to replace mine and the new one is somehow inverted. Meaning, instead of providing power when the temperature drops below a set temperature, it provides power when the temperature is above the set temperature.

Does anyone have any knowledge about this? Is there a switch that I am missing? The user manual was not helpful.

Thanks

0 Comments
2024/12/14
15:56 UTC

3

Help with Honeywell thermostat.

Hey guys,why this is not heating up the room, if anyone knows what’s the right setting to set it to 76-78 please hmu.

12 Comments
2024/12/13
17:05 UTC

1

T9 / Resideo app slow to show current data?

I have three T9 thermostats installed on a zoned heating and cooling system. When I launch the Resideo app on my iPhone, it fails to display the current temperature and settings. Instead, it seems to be showing the temperatures and settings from the last time I opened the app.

After waiting for 20 to 30 seconds, the app switches to displaying the correct current data.

Is this the expected behavior? If so, it’s quite frustrating that there’s no visual cue to indicate that the data is outdated. Is there something I can do to speed it up?

0 Comments
2024/12/12
20:25 UTC

1

Comfort Heat 510-t

How do I program settings?

0 Comments
2024/12/12
19:28 UTC

1

Sensi Smart Thermostat - Cannot Fetch Schedule

I have three of the same Sensi Smart Thermostats but the new one I got does not allow me to set a schedule. Here is the screenshot I get. Any ideas?

https://preview.redd.it/83fwhruwvg6e1.png?width=1290&format=png&auto=webp&s=22cbd50f17acedbb3c0fe6c256d388b62a0088a0

0 Comments
2024/12/12
19:14 UTC

1

Installing thermostat in house

I want to install thermostats in each room. I do not have thermostats in my house. Is it a simple job? What’s involved in the installation process?

2 Comments
2024/12/12
18:33 UTC

1

Help with thermostat replacement

Not very handy and knowledgeable; please be gentle. We have a two story house, and a builder-installed HVAC system with Honeywell Lyric Round Thermostats, one on each floor. We have a single AC outside and the individual control seems to be using automatic dampers of some kind to direct the flow. House was built six years back and we are the second owner. For three years, there was no issue with the HVAC. Recently, downstairs one lost WiFi connectivity, and in a month stopped workihg manually as well. It just keeps in a perpetual boot-up loop and never gets past the continuously rotating Lyric circle. Tried resetting it, taking out battery, repalcing it with a new Lithium AAA battery, but the problem is still there. The upstairs one is still working fine. Want to replace it with a new one, but have some questions.

If I need to replace, should I replace both thermostats? I think yes, but just checking as it is 2X the cost, obviously.

Due to single AC, dual zone configuration, do I need to buy a specific kind of thermostat? What should I watch out for?

If it is just a simple replacement keeping track of current wiring connection and getting a new one, I may be able to do it myself. Ecobee or Nest seem to be two recommendations for smart thermostats in general, but no experience with either of them.

Thank you in advance.

4 Comments
2024/12/12
06:10 UTC

1

help!

just moved into a new apartment, with this mystery thermostat. any idea what the buttons mean, and how to turn on the heat?

thanks in advance from a very cold UK

2 Comments
2024/12/11
21:09 UTC

1

Looking for new thermostat

Sorry about this long post but I am trying to find a thermostat that has programming that allows you to set timeframes when the aux heat (heat strips) will run. My power company has recently gone to a peak demand power rate. During winter months the peak rate timeframe is 6a-9a. The peak power cost is $12 Kw while off peak is $0.06. I have 2 story house with 2 HVAC units. During the cold mornings I am trying to preheat the house to 70-71 and with a heat pump that is impossible. So I have started using the heat strips along with the heat pump which brings the preheat temp up to 71 before 6am. Then I program the heat pump for 68 degrees for 30 minutes each hour between 6a-9a to control my power costs. I currently have an ecobee and I have to wake up at 5:50 and manually go to the thermostat and make changes to shut the heat strips off. Does anyone know of a thermostat that allows you to program time frames to allow aux heat ti turn on and off? Or any help at all with this situation?

1 Comment
2024/12/11
15:46 UTC

1

Lennox iComfort M30

It is showing an indoor temperature of 80*. That is impossible 71 un the house. It is about 10 years old, but would rather not buy another thermostat.

1 Comment
2024/12/11
03:16 UTC

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