I am not breeding at the moment (next years plan) at least for me it represents a investment in time. I don't have a lot of free time so what I have is very valuable to me. The effort spent in breeding and having a successful clutch to then trust it to a home build thing just isn't worth it. The cost of building an incubator is really much higher than just materials
This is just my rationalization maybe you have a lot more time than I do and really want to build things and fiddle with them that is awesome, I am jealous I simply do not have time wiring flexwatt is bad enough!
You could also find a mini fridge cheap like $20,
2 ft flex-watt wired $10.00,
Hydrofarm thermostat $28,
accurite $11
Check out what's available at
"The greatness of a nation and its moral progress can be judged by the way its animals are treated." - Gandhi