Improvements for the 2014 Sweeter Heater! Yeah!
http://sweeterheater.com/page8.asp
Q&A using Sweeter Heater for chicks:
http://sweeterheater.com/page7.asp
http://sweeterheater.com/page4.asp
Gail Damrow and the Sweeter Heater youtube :
Been using these for a couple of years now and love them.