61 posts tagged with thermostat.
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Thermostat Question

Spousal difference regarding thermostat. I run cold, wife runs hot. Her argument is that you can always layer. Fair enough, but I find myself needing to pile on sweaters in the middle of summer. Our two kids (5 & 8) are also usually cold inside the house. The thermostat is usually set to 65 degrees. Does 65 degrees year round seem unusually cold in the context of human beings living in a climate controlled house? Household thermometer is currently 62.5 (located in a different room that thermostat).
posted by leotrotsky on Jan 15, 2017 - 98 answers

How can I safely install Nest thermostats to replace line-voltage units?

My apartment has in-wall heaters in each room, with a separate line-voltage thermostat each. I'd like to replace those with Nest thermostats, but my understanding is that it requires special work. [more inside]
posted by ChrisR on Dec 17, 2016 - 7 answers

Repair or Replace, Upright Freezer Edition

Should I repair or replace my 25+ year old GE upright freezer? [more inside]
posted by vignettist on Aug 9, 2016 - 9 answers

Replacing old thermostat -- two problems

I'm trying to replace an old analog, mercury tube Carrier thermostat with a programmable one. I'm having two problems. [more inside]
posted by mudpuppie on Jun 12, 2016 - 14 answers

Connecting a "C" wire at the furnace for smart thermostat

I'm trying to hook up my smart thermostat, but it needs a wire that isn't currently connected at the furnace. Am I doing the right thing? [more inside]
posted by almostmanda on Apr 12, 2016 - 5 answers

I broke my heater - what'd I do wrong?

I am in the process of replacing all of the 240V single-pole wall thermostats in my house with programmable thermostats. This has all gone well until I got to the very last thermostat, which I can't get to work. What'd I do wrong? [more inside]
posted by saeculorum on Feb 22, 2016 - 9 answers

How to safely heat only half my house at night?

My single radiator heats the main living areas from one side and the bedrooms from the other. At night it gets down into the 30s/40s. Is there a way I could safely heat just the bedrooms at night? Diagram inside. [more inside]
posted by joshwa on Feb 7, 2016 - 19 answers

How can I make my Nest thermostat activate emergency heat?

Last summer, I replaced my thermostat with a Nest thermostat. It worked great until now that winter is here—when the temperature drops below freezing, my heat pump can't produce warm air. Tomorrow night it's forecast to be 8°F. Can you help me figure out what I've wired incorrectly? [more inside]
posted by waldo on Jan 6, 2015 - 10 answers

How do heat settings work on dryers?

How can a dryer with 2 thermostats have three heat ranges, especially since only one is on the blower element? [more inside]
posted by jonclegg on Dec 19, 2014 - 5 answers

Why does my car not give me heat at idle?

My 2003 VW GTI VR6 warms up fine and gives heat while driving, but at idle it immediately blows cold air. [more inside]
posted by fritley on Nov 24, 2014 - 11 answers

It has the word "heat" in its name, so.

What am I not understanding about my HVAC system? [more inside]
posted by emelenjr on Nov 10, 2014 - 10 answers

How does my office thermostat work?

Is there any guide for best practices on setting a 2-dial thermostat like the one pictured here and here? And what do the two dials represent? [more inside]
posted by spbmp on Nov 6, 2014 - 10 answers

Will this temperature controller work in North America?

I need to purchase a few temperature controllers; I'm interested in this one but I'm not sure if it will work in North America without blowing up or melting something or other adverse and undesirable things. [more inside]
posted by Nyx on Aug 13, 2014 - 4 answers

Can I Get My Furnace Fan to Function Independently of Heating/Cooling?

We have this furnace. In the summer it would be nice if we could run only the fan (We don't have central air), but according to the manual, Fan Only Mode requires the R and G thermostat contacts be wired. As you can see, only the RC/RH and W contacts are wired. Would simply swapping the orange wire from RC/RH to RH/G create the circuit needed for sweet, sweet fan action, or will it be necessary to run a new wire from G to the control board in the furnace, therefore requiring professional help? [more inside]
posted by Alvy Ampersand on Aug 8, 2014 - 4 answers

Is my problem electrical or mental?

When my central air turns on or off, I hear a loud popping sound coming from the thermostat area. I have replaced the thermostat and still hear it. I'm sure that I have always heard it and that other ac's have made that noise but, for the past few months, it seems to have gotten louder and it wakes me up throughout the night. It is driving me crazy. Is your thermostat that loud? Could this be an electrical issue? [more inside]
posted by myselfasme on Jun 18, 2014 - 6 answers

Space heaters vs turning up the heat?

I live in a drafty old farmhouse. My roommates and I are currently waging a thermostat war--one says it's cheaper to to have the heat for the whole house at 70 than it is for him to heat his room with a space heater. I maintain that its probably way more expensive to heat the entire drafty house. Who's right? We have electric heat. [more inside]
posted by Grandysaur on Nov 4, 2013 - 26 answers

Can a programmable thermostat be hooked up to a old furnace and ac unit

My mother-in-law has a old furnace in her basement and a air conditioner unit outside, can these be hooked up to one of those new programmable thermostats?
posted by just asking on Oct 13, 2013 - 9 answers

I want to control lights and/or thermostat with my phone, from anywhere.

It seems like all the home automation device/app combos allow me to only control my lights or devices while inside my house where, you know, I can actually just walk over to them and turn them on and off already. [more inside]
posted by sandra_s on Sep 12, 2013 - 11 answers

Turn It Up, Turn It Down

Extensive research into the state of the HVAC art has revealed more questions than it has answered. How do I set the thermostat in my new row house to maximize both comfort and efficiency? [more inside]
posted by fedward on Jul 14, 2013 - 10 answers

What's broken: shower, tank, pump, thermostat, boiler, or all??

I live in rented accommodation in the UK. The hot water is scaldingly hot. The radiators burn to touch. The shower temperature is hugely unreliable -- scalding or freezing. The landlord is worried that a plumber will rip him off, based on bad experiences in the past, and unwilling to pay to investigate. Can you help me understand what's going on? I'd like to put my landlord's mind at rest regarding plumbers, and set his expectations regarding likely diagnoses and solutions -- and hence cost. I also suspect this situation is wasting energy and hence driving up the cost of heating bills. I'd like to persuade the landlord that fixing it might be a good idea. [more inside]
posted by ajp on Apr 12, 2013 - 23 answers

Stubborn check engine light ideas

A few months ago, my car's check engine light came on. They fixed it, it came back on again, they fixed it again, and now it's back on. I'm looking for possible explanations so I'm more prepared when I take it back yet again. [more inside]
posted by misskaz on Mar 29, 2013 - 33 answers

What's up with our electricity?

We woke up this extremely cold morning (9F/-13C) and various electric things in our condo seem to be flaky, like there's not enough power. I also noticed that the thermostat for our heat pump says "Auxiliary Heat On", which I haven't seen before. Has anyone seen something like this before? Since it's all electric, it seems like it might be related. [more inside]
posted by smackfu on Jan 23, 2013 - 15 answers

What's really smart for a smart house?

I'd love to learn more about innovative uses of technology in the home, beyond media/entertainment. I'm sure there's a lot of development going on out there, but how do I keep on top of it, and how can I find out what's really worth it? [more inside]
posted by Sublimity on Jan 13, 2013 - 16 answers

Indoor/Home Temperatures in Arctic or Very Cold Climates

At what temperature do people set their thermostats if they live in Arctic climates, such as Barrow, Alaska? My mother wants to know. [more inside]
posted by aabbbiee on Dec 12, 2012 - 16 answers


Programable thermostats - regular or internet style? [more inside]
posted by cestmoi15 on Oct 27, 2012 - 13 answers

Ancient boiler/modern thermostat: help me end the freeze/roast cycle

I need some thermostat programming tips. I moved over the summer and now I have a thermostat after many, many years of living with landlord-controlled heating systems and other curious and quirky forms of heating. Problem: the boiler takes FOREVER to heat up the radiators and then overshoots the target temperature dramatically. Details within. [more inside]
posted by mskyle on Oct 12, 2012 - 9 answers

My landlord locked the thermostat and it's not in the lease

Just started renting at a new apartment. The lease includes a flat fee for utilities, but does not state that the landlord will have control over the thermostat/have the thermostat locked. I was never told that the thermostat would be physically locked and the lease makes absolutely no mention of it. In fact, the only thing in the lease about utilities is his single hand-written line stating "$100 flat fee for utilities a month." [more inside]
posted by rbf1138 on Jul 3, 2012 - 29 answers

Help Installing Nest Thermostat on Millivolt System Using 24v Transformer

I just purchased a new Nest thermostat. My old thermostat gets power from an ancient millivolt system (thermopile on top of pilot light generates 0.7VDC). This is incompatible with the Nest, since the Nest requires standard 24VAC. Nest support told me they've heard some customers have had success using 24v step-down transformer. After lots of research, I think the wiring is supposed to go something like this: W from furnace (common, -0.7VDC ?) --> W on T-Stat 24 VAC power from transformer (+/- ?) --> C on T-Stat R from furnace (+0.7VDC ?) --> RH on T-Stat 24VAC power from transformer (+/- ?) --> RH on T-Stat As you can see, I'm still a bit fuzzy on the details. Questions are below the fold! [more inside]
posted by jesseendahl on Jan 22, 2012 - 17 answers

Matter cannot be created or destroyed.

If you are going to be out of the house for a few days, does it make any sense to turn the heat down? My engineering-OCD has been bugging me on this one. [more inside]
posted by shipbreaker on Dec 2, 2011 - 18 answers


What are the major benefits of a programmable thermostat, how big a deal is the new Nest thermostat, and how much might I expect to save with either one over a non-programmable digital thermostat? [more inside]
posted by brentajones on Oct 26, 2011 - 21 answers

Winter heating confusion

How do I use a programmable thermostat/heater efficiently in the winter? Specifically, how cold should I let it get when no one is home? [more inside]
posted by andrewesque on Oct 24, 2011 - 9 answers

Why is my thermostat buzzing?

I just installed a digital thermostat for the evaporative cooler in our house. Works great, hi/lo, pump, fans, etc., but there is a very low buzzing coming from the thermostat when the evaporative cooler is running. When the thermostat is in "standby" (just showing the ambient temperature) it does not make any noises. It is definitely coming from the thermostat and not any nearby location. Any ideas why this is happening? A defective unit? Weird house wiring? Thanks!
posted by jroybal on Jun 3, 2011 - 3 answers

Help me control my furnace's blower

How can I reconfigure my Goodman GmH950703Bx furnace so that it doesn't blow all the time? [more inside]
posted by ChrisR on Feb 23, 2011 - 3 answers

Thermostat for new Lennox gas furnace

This is pretty specific, but we have a new Lennox G61-MPP gas furnace and aren't all that happy with the thermostat the contractor installed for it (Pro1 IAQ). Does anyone have any experience with other thermostats compatible with this furnace? Should be able to provide 7 day schedule, advance recovery, and multi-stage heat calls. Thanks!
posted by aught on Feb 23, 2011 - 5 answers

I suspect my thermostat is a dirty, no-good, cheatin' liar (who may have shot my Pa)

My house is cold, and I suspect something's wrong with the thermostat. But I know next to nothing about how home HVAC systems work. Other weird stuff inside... [more inside]
posted by ChrisLSU on Jan 12, 2011 - 21 answers

Heater troubleshooting

It's getting cold, and the heat in our newly-purchased but old house won't turn on. Can you help troubleshoot, or should we just call in a professional? [more inside]
posted by misskaz on Oct 2, 2010 - 22 answers

Progammable thermostat for heat pump with timer

If this exists, help me find it: I would like a programmable thermostat with a timer that will work with a heat pump (used for both heating and cooling). [more inside]
posted by If only I had a penguin... on Sep 24, 2010 - 6 answers

Brr, it's cold in here... oh wait no it isn't.

Our thermostat really wants to heat our apartment. We really want it to cool our apartment. What could be causing this? [more inside]
posted by magnetsphere on Aug 17, 2010 - 7 answers

I live in GA - I have no A/C

All 3 of the thermostats in my home read "Low Battery" with an * and my a/c isn't working. My landlord says that I need to replace the batteries. That seems unlikely to me. Also hard. [more inside]
posted by katyjack on Jun 16, 2010 - 15 answers

How often do home thermostats fail?

My friend's thermostat failed. He came home and his house was 120 degrees. How does this happen? How common is something like this? Could this have been prevented? [more inside]
posted by hazyspring on Mar 27, 2010 - 10 answers

Argument heats up!

Help me settle an argument between my parents about central heating, please. My mother believes, for instance, that setting the thermostat for 75 degrees and cutting it off once it reaches 70 degrees will warm the house faster than if the thermostat were simply set to 70 degrees initially. My father thinks this is ridiculous. Who's right? [more inside]
posted by estlin on Feb 21, 2010 - 29 answers

Analog thermostat went binary.

Why has my thermostat gone binary? [more inside]
posted by zvs on Jan 1, 2010 - 10 answers

Help me turn on my radiator

My radiator won't turn on. [more inside]
posted by jedicus on Dec 9, 2009 - 10 answers

Baby, it's COLD inside...

Thermostat seems to work fine. Except at night. When it gets cold. [more inside]
posted by Spyder's Game on Dec 7, 2009 - 16 answers

How do I cook a 65-degree egg in my own house?

sous-vide-Filter: I have a pot of water and I can buy an immersion heater or aquarium heater, but how do I control it to maintain an arbitrary temperature 40-100C within 1 degree, for cheap? External themostats for homes and microbreweries and aquaria seems to top out at 32C, and cost upwards of 50$. Scientific water baths and ovens cost $800+. And my oven is not accurate enough. [more inside]
posted by d. z. wang on Aug 24, 2009 - 13 answers

Multi-zone thermostat?

Is there such a thing as a wireless programmable thermostat? I want to control two heating/cooling units with one panel. [more inside]
posted by uaudio on Jun 1, 2009 - 2 answers

Help keep me hot and cold!

Can someone recommend a programmable thermostat that will save me from insane energy bills? [more inside]
posted by griffey on Apr 14, 2009 - 8 answers

A/C running constantly, does not shut off when set temp reached.

Hi all, thanks in advance for the assist: This weekend I started running the A/C in the house (we put in a programmable thermostat last summer). the prob. we are having is that it runs constantly no matter what temp. you set it to (my wife set it to 90 last night as we were going to bed and it continued running until I gave in and turned the whole thing off). the previous night I turned it on, with the temp. setting high (mid 80's) and went to sleep and we woke up freezing in the AM. the fan is set to Auto, and nothing about our "setup" has changed since last summer. Except that it doesn't stop running when it gets to the set temp. Thanks again for any help or insight the community might have.
posted by rxbert on Mar 9, 2009 - 11 answers

Recess mount a thermostat

Installing a thermostat other than surface mount [more inside]
posted by bloggerwench on Mar 3, 2009 - 8 answers

Old thermostat wiring

Replacing the old mercury thermostat in our old house with a programmable one for an oil furnace. The old one is a two wire hook up, one red/white and the other black. What would be the correct configuration to the new thermostat? Black to R, Red/White to W? I've searched high and low for the answer.
posted by Heatwole on Jan 15, 2009 - 16 answers

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