Chris
I have pretty good hatch rates using this method.
I purchased a 1500 series GQF inc. that had a bad heating element and wafer cheep $50.00.
Put it in a building that had a window ac unit in it and would maintain 70 degrees.
Opened all back vents added a water system to have the humidity then run with the turner on all the time.
We set eggs every 7 days.
Good luck
Larry
www.doublelquailfarms.com