. - This Act shall be known as the "Organic Agriculture Act of 2010".: Uploaded on Jan 10, 2011 This was our first shot with this home made incubator and there is 26 that hatched out of 31 eggs. The eggs came from my 4 RIW hens and 1 cock that I raised from 2 weeks old. The X on the eggs are to indicate the rotation of the egg, rotate every 8 hours, Ventilation was through the drain plug, they say you need oxygen and that is right but the drain hole is enough and as large as this incubator was venting it was not necessary not to mention that i opened it every 8 hours.. In a forced air incubator (with a fan) the temperature should be 99-99.5*F. In a still air incubator the temperature should be slightly higher, 101-102*F measured at the top of the eggs. I use a thermometer and a hygrometer (which measures humidity) in my incubator. Hygrometers can be purchased quite cheaply at a cigar shop, Radio Shack and I believe even Walmart. You want 45-50% humidity for day 1-18, then 65% for the last few days. Select clean, even shaped, undamaged eggs for incubating. If possible, do not store them too long pre-incubation. Ideally eggs should be set within a week after being laid and after 10 days the hatch-ability of the eggs drops significantly. 13 watt CFL bulb Hot water heater thermostat 1/2" wire mesh computer fan Thermometer (temp/humidity) Category Pets & Animals