Uploaded February 2023 | Updated September 2026, 4 days ago

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I advise nobody to try this... scroll down for my ingredients.

This is the first time I've used Premiere since 2002; go easy on me. If you are at all interested in more technical aspects of the build, please write it in the comments and I'll do my best to answer! Thanks to @BuildingStuffIsFun for a great tutorial on the secondary burn 55 gallon drums, and thanks to @RuiSantosdotme for his amazing teaching at Random Nerd Tutorials!

Timecodes
0:00
0:41 - Make Heat 55 gallon drums, metalwork
2:15 - Heat Transfer diy plumbing
5:13 - Prototype Testing backyard firepit
5:56 - Monitoring and Control esp32
8:39 - Feedback and Improvements brutal instagram comments
11:08 - Glorious Fails
12:23 - Finale: Will it Freakin' Work? asynchronous web server for monitoring

2 55 gallum drums
15 feet 1/2" copper tube
12V 0.7A pump (formerly a 1/4 hp sump pump)
2 12" 100W automotive fans (overpowered, but can be under-voltaged)
scrap metal kicking around the neighborhood
1 esp32
3 DS18B20 thermometers
1/2" water flow hall-effect sensor
ceramic insulation
radiator off an old Nissan
20 feet PEX tubing
gumption