Ask Lemmy
A Fediverse community for open-ended, thought provoking questions
Please don't post about US Politics.
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either [email protected] or [email protected].
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email [email protected]. For other questions check our partnered communities list, or use the search function.
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
view the rest of the comments
Excluding variable energy pricing, it's much more energy efficient to only heat and cool your home while you're actually at home.
Think of it like a tea kettle. It's definitely not energy efficient to keep the water boiling for the hours when you're not home just because you might want a cuppa when you get home. The only benefit keeping the water hot is to brew your next cup quicker. The water is cooling off at the same rate it would if the heater was off, but energy is being pumped into it to keep it hot and therefore it is constantly losing energy.
This is also assuming your HVAC's coefficient of performance is constant, which it's not, but it still generally is way better to avoid heating and cooling while you're away from home, especially if you live in an older less insulated home.
If you do have variable energy pricing, that can change things, and that's when a smart thermostat can really save you money. Instead of heating and cooling around your schedule, you do it around the pricing treating your house like a battery. See: https://youtu.be/0f9GpMWdvWI?si=LjiAjNf6t8cU8OZ2
This video really only really works if your home is relatively well insulated (as he points out). If it's not well insulated, you'll be uncomfortable basically all the time.
Generally if you're on a variable rate it's better to set the thermostat closer to the outside temperature when you're gone for more than 5 hours. If you're not on a variable rate, that break even point is like 30 minutes.