THE VIDEO SHELF · thermoelectric cooling
Thermoelectric cooling: it's not great.
Technology Connections explains in 33 minutes why thermoelectric (Peltier) cooling is far less efficient than compressor-based refrigeration.
Why HN readers recommended it
It is the standard link whenever a new Peltier or thermoelectric cooling breakthrough is posted.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- Technology Connections
- Topic
- thermoelectric cooling
- Format
- explainer
- Level
- general
- HN recommenders in dataset
- 3
- HN mentions in dataset
- 5
- Recommendation years in dataset
- 2025–2025
These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.
From the original HN conversations
Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.
> Did peltiers ever get efficient? Not compared to gas compression. For a relaxed take on it: [VIDEO] (Thermoelectric cooling: it's not great) Though part of the complaints about the mini fridge is due to lack of insulation. But he compares it to his usual …
tommiegannert on Hacker News · 2025-02
In New thermogalvanic tech paves way for more efficient fridges> though less efficient than other types IIRC they are _massively_ less efficient. Relevant Technology Connections video: [VIDEO]
joshstrange on Hacker News · 2025-07
In Scientists identify culprit behind biggest-ever U.S. honey bee die-offMandatory Technology Connections video about Peltier cooling, "Why Thermoelectric Cooling Is Inefficient": [VIDEO]
otikik on Hacker News · 2025-07
In Staying cool without refrigerants: Next-generation Peltier cooling
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.