this post was submitted on 01 Aug 2023
443 points (97.8% liked)

Technology

60060 readers
3388 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 2 years ago
MODERATORS
 

Heat pumps sold so fast in Maine, the state just upped its target::undefined

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 15 points 1 year ago

It's a simple idea, but it's not quite that simple.

When it gets to be around freezing outside, you have to deal with frost buildup on the outdoor unit.

And as temperatures fall, output and efficiency generally falls. So you need an oversized unit to heat your house on the coldest days, but an oversized unit isn't great the rest of the year.

Historically, heat pumps were only good if it never got down below freezing. Now, modern cold- climate heat pumps are efficient well below freezing and Mitsubishi's models advertise that they deliver 100% of their output down to -23F/-30C. Between adding variable inverters, better defrosting, etc they've come a really long way in the past decade.