It's been a long time since I went over heat exchangers and even then it was all theoretical. I'm looking for anyone with real world experience with different types of heat exchangers.
I'm looking at building a external wood burning stove. Most of the designs are pretty much just a firebox surrounded by water which is a step up from just putting a pot of water over a stove. They a bit overpriced/simple for what they are and most are 'dumb' devices. Temp too cold, turn on fan, temp too hot, turn off fan.
Most of my combustion experience is with events that occur multiple times/second rather than in hours. I think there is a lot of room for improvement starting with a proper heat exchanger.
Rough initial estimates:
- Air Temp: ~1500F | ~800C
- Water Temp: <212F | <100C (Not making a boiler due to safety).