LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Non-*NIX Forums > General
User Name
Password
General This forum is for non-technical general discussion which can include both Linux and non-Linux topics. Have fun!

Notices


Reply
  Search this Thread
Old 03-02-2019, 08:35 PM   #1
darksaurian
Member
 
Registered: Jun 2010
Location: USA
Distribution: Fedora Xfce spin
Posts: 201

Rep: Reputation: 27
leaving light bulbs on


If your heat is electric then it doesn't matter if you leave your lights on in the winter, does it?
 
Old 03-02-2019, 08:55 PM   #2
frankbell
LQ Guru
 
Registered: Jan 2006
Location: Virginia, USA
Distribution: Slackware, Debian, Mageia, and whatever VMs I happen to be playing with
Posts: 14,625
Blog Entries: 24

Rep: Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055Reputation: 4055
I guess if you don't care about using energy unnecessarily . . . .
 
Old 03-02-2019, 10:20 PM   #3
Mechanikx
Member
 
Registered: Jul 2018
Location: Canada
Distribution: Slackware
Posts: 107

Rep: Reputation: 75
Quote:
Originally Posted by darksaurian View Post
If your heat is electric then it doesn't matter if you leave your lights on in the winter, does it?
How does your heat being electric or not determine if you should leave your lights on in the winter? Just curious.
 
Old 03-02-2019, 10:23 PM   #4
darksaurian
Member
 
Registered: Jun 2010
Location: USA
Distribution: Fedora Xfce spin
Posts: 201

Original Poster
Rep: Reputation: 27
But if your electric heater has a thermostat and if all the energy used by the light bulbs gets turned into heat then wouldn't leaving your lights on just make the heater run less and it would all even out? (i could be wrong, if so just wondering why)
 
Old 03-02-2019, 10:26 PM   #5
darksaurian
Member
 
Registered: Jun 2010
Location: USA
Distribution: Fedora Xfce spin
Posts: 201

Original Poster
Rep: Reputation: 27
Quote:
Originally Posted by Mechanikx View Post
How does your heat being electric or not determine if you should leave your lights on in the winter? Just curious.
The heat and the light bulbs have to both be using electricity for my question to make any sense. If the heat was gas powered and gas was ten times cheaper then of course turning off your lights would make sense.
 
Old 03-02-2019, 10:28 PM   #6
rknichols
Senior Member
 
Registered: Aug 2009
Distribution: CentOS
Posts: 4,143

Rep: Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873Reputation: 1873
Indeed, all the energy consumed by the light ends up as heat, but if those light bulbs are in a ceiling fixture then most of that heat will end up in the air around the ceiling, where it doesn't do much for your comfort.
 
Old 03-02-2019, 10:33 PM   #7
Mechanikx
Member
 
Registered: Jul 2018
Location: Canada
Distribution: Slackware
Posts: 107

Rep: Reputation: 75
Quote:
Originally Posted by darksaurian View Post
But if your electric heater has a thermostat and if all the energy used by the light bulbs gets turned into heat then wouldn't leaving your lights on just make the heater run less and it would all even out? (i could be wrong, if so just wondering why)
Ah, I see what you're saying. It's going to depend on the square footage of the area, the amount of heat the light bulbs give off, the amount of light bulbs, how well sealed your house is, what rknichols mentioned about placement, etc.
 
Old 03-02-2019, 10:43 PM   #8
darksaurian
Member
 
Registered: Jun 2010
Location: USA
Distribution: Fedora Xfce spin
Posts: 201

Original Poster
Rep: Reputation: 27
Someone with two identical houses in the same area with electric heat needs to leave all the lights in one house and all the lights off in the other house. And then see if the house with the lights on gets a higher electric bill.
 
Old 03-02-2019, 11:23 PM   #9
Mechanikx
Member
 
Registered: Jul 2018
Location: Canada
Distribution: Slackware
Posts: 107

Rep: Reputation: 75
Quote:
Originally Posted by darksaurian View Post
Someone with two identical houses in the same area with electric heat needs to leave all the lights in one house and all the lights off in the other house. And then see if the house with the lights on gets a higher electric bill.

Sure. I think another consideration (assuming there were savings) would be the cost of light bulbs. Surely they would burn out faster if you left them on 24/7. So you would have to subtract the cost of light bulbs off your total savings.

In my bathroom, the lighting around the mirror use these specialty light bulbs (four of them) that are $10 a pop and burn out every couple of months. I wasn't having any of that so I put a floor lamp in my bathroom that uses a light bulb I picked up from the dollar store almost a year ago.

Interesting question you posed! I was all set to get some work done after dinner until I was distracted by your question

Last edited by Mechanikx; 03-02-2019 at 11:26 PM. Reason: Added info.
 
Old 03-02-2019, 11:45 PM   #10
darksaurian
Member
 
Registered: Jun 2010
Location: USA
Distribution: Fedora Xfce spin
Posts: 201

Original Poster
Rep: Reputation: 27
But you forgot to factor in the cost of heater maintainance. The lights are taking part of the load off the heater so you have to subtract heater maintainance savings from light bulb cost.
 
Old 03-03-2019, 01:03 AM   #11
ondoho
LQ Addict
 
Registered: Dec 2013
Posts: 11,046
Blog Entries: 7

Rep: Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780Reputation: 2780
the only country i know of where one could do that with a good conscience - is norway (the why is for another story).

since you're apparently not:
don't do it.
heating your house with electricity is bad enough, leaving the lights on is worse.
don't have to be a physicist to understand that.
 
Old 03-03-2019, 01:25 AM   #12
Mechanikx
Member
 
Registered: Jul 2018
Location: Canada
Distribution: Slackware
Posts: 107

Rep: Reputation: 75
Quote:
Originally Posted by darksaurian View Post
But you forgot to factor in the cost of heater maintainance. The lights are taking part of the load off the heater so you have to subtract heater maintainance savings from light bulb cost.
That's true. I guess for that one it would depend if you're a renter or home owner.
 
Old 03-03-2019, 07:56 AM   #13
enorbet
Senior Member
 
Registered: Jun 2003
Location: Virginia
Distribution: Slackware = Main OpSys for decades while testing others to keep up
Posts: 2,124

Rep: Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086
Having been employed by a solar heating company that routinely collected sophisticated "energy profile" data on client's homes, usually discovering that conservation was required before active solar, I can tell you that your level of insulation, including infiltration levels for outside air, is far more important than the tiny bit of thermal gain from electric lighting. In a home with R30 in the walls, R40 in the ceiling, externally insulated foundation, and with an impervious wrap-around barrier for infiltration, even the heat from human bodies matters. In most homes both body heat and light bulbs heat (rather inefficient source and use of electricity) are like spitting in the ocean. In general it is wiser to use the device(s) designed to create and distribute heat do the job.

Last edited by enorbet; 03-03-2019 at 05:23 PM.
 
Old 03-03-2019, 03:15 PM   #14
Trihexagonal
Member
 
Registered: Jul 2017
Location: Land of 1000 Nights
Distribution: FreeBSD, OpenBSD and Solaris
Posts: 189

Rep: Reputation: 185Reputation: 185
What about leaving computers, TV, etc. on all the time? A computer must use more electricity than 60 watt light bulb. Do you unplug your Xbox, PS4? Everything with a little red light that stays on is described as an "energy vampire".

I'm of the opinion the repeated heating and cooling of components is harder on them that leaving them on 24/7 so I leave everything on even when I go out including the TV.

I have an electric meter in my apartment about 10 feet from me, it's not a smart device, and am allocated so many killowatt hours per month before start to accrue an electric bill. I haven't received an electric bill since last summer and it's never been over $40 during the summer. Since shelving my energy hog towers it's dropped to around $20 a month last summer.

My apartment is small enough I can turn on the oven and leave the door open to keep some heat without using the AC unit much and dress warm anyway. I have houseplants so it can't get too cold. I only get direct sunlight from about 4pm on in the summer so that helps keep it cool.
 
Old 03-03-2019, 05:25 PM   #15
enorbet
Senior Member
 
Registered: Jun 2003
Location: Virginia
Distribution: Slackware = Main OpSys for decades while testing others to keep up
Posts: 2,124

Rep: Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086Reputation: 2086
Yo Trihex, using an oven to heat a home is inefficient and bad for the oven. Spend 20 bux and get yourself a space heater. As for power hungry towers, that doesn't apply to all towers. It is dependent on the efficiency of the PSU. My 800 watt PSU powered tower drops to less than 30 watts when in deep hibernation.

Last edited by enorbet; 03-03-2019 at 05:28 PM.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
LXer: Disney's Linux Light Bulbs (Not a "Luxo Jr." Reboot) LXer Syndicated Linux News 0 09-22-2015 11:00 PM
LXer: Linux powers smart LED bulbs, crockpot, maker kit LXer Syndicated Linux News 0 01-11-2014 10:32 AM
Exploding light bulbs! aliens8myaudi LinuxQuestions.org Member Intro 2 12-10-2009 07:43 AM
LCD monitors + Fluxbox = bulbs dont turn off on powersave wakeboarder3780 Slackware 7 01-15-2007 03:50 AM
LCD monitors / Fluxbox / bulbs dont turn off wakeboarder3780 Linux - Hardware 2 01-13-2007 09:07 PM

LinuxQuestions.org > Forums > Non-*NIX Forums > General

All times are GMT -5. The time now is 03:46 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration