Re:What Happened to the 100000 Hour LED Bulbs?
by darkpuma on Wednesday February 06, 2019 @12:11PM
(#19097109)
Electric powered heat pumps (essentially air conditioners run in reverse) can have considerably greater efficiency than electrical resistance heaters.
https://en.wikipedia.org/wiki/Heat_pump#Performance_consider...
Re:What Happened to the 100000 Hour LED Bulbs?
by Brakenshire on Wednesday February 06, 2019 @12:07PM
(#19097055)
It's also heating the ceiling, which will reduce the efficiency further.
It's a straightforward issue of separation of concerns, there are some occasions where you want heating and lighting always tied together, but they are niche. Almost everywhere in the world you have large periods of the day or year when you want lighting without heat.
Re:What Happened to the 100000 Hour LED Bulbs?
by foxhop on Wednesday February 06, 2019 @06:37PM
(#19101344)
I use a desk lamp so It's really close to me and I get both the light and heat and I swap the bulb out for an LED during summer.
Re:What Happened to the 100000 Hour LED Bulbs?
by Brakenshire on Wednesday February 06, 2019 @07:25PM
(#19101744)
Ah, I see, that’s a good idea.
In the UK, for example, during winter (and spring and autumn) the heating is appreciated! However, it is 2-3x more costly than using gas central heating. (However however something something whole house vs room-specific heating.)
In the summer, it’s a complete waste though.
Directed infrared heating panels may be the most efficient because they do what you describe - heat you up directly, rather than heat the air in the room.