We just made our first incubator from an old bar fridge , some heat tape, a computer fan and power supply, thermostat and a couple digital thermometers because I'm a little paranoid lol. It took me all of one afternoon to wire up the tape, connect everything and get it up and running. It can easily be done for reasonable cost. We have $10 into the bar fridge, about $20 into heat tape, the cost of the thermostat and thermometers. Oh also I cut the plastic off the door to more easily accommodate the egg bins (6qt sterilite bins)
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