I built these approx.7 years ago. At the moment I have 28 I believe in the other I use for hatching these are some pics. The previous hatch was at 94%. I would make it a little taller to put an extra shelf. I do not use any water in the one I use for incubation. I use gqf sponge in the hatcher...
I built two with 3/4 plywood based on gqf specs but about 2 inches wider and 4 inches taller and lined it with 1 inch foiled backed styrofoam insulation. foil taped all seams on the inside and wood glued all plywood. ordered fan and heat coils from gqf and installed digital thermostat. Door is...
No water the first 18 days and added a sponge and brought it up to 50% and 9 chicks hatched day 19 and are still hatching as I type this.Humidity is up to about 60% at the present.
I have been on numerous forum/groups for different hobbies and I have found the people who are the "go to" for the most knowledge of the subject are the most sarcastic and condescending and aloof for info!