Isn't the heater controller just a 12v actuator? I use one in my observatory to dim the 12v lights. It should do the same job to control the heater. I bought my actuator off of ebay and it was only $6.00 if I remember right. I found the item. Let me know what you think Dale http://cgi.ebay.com/LED-Bulb-Dimmer-Adjustable-Brightness-Controller-DC-12V-... ________________________________ From: Canopus56 <canopus56@yahoo.com> To: Utah Astronomy List Serv <utah-astronomy@mailman.xmission.com> Sent: Sat, June 18, 2011 10:32:38 PM Subject: Re: [Utah-astronomy] ATM Jay, Another other necessary part of the setup is a heater controller. The strips alone just suck power out of the battery and can become too hot for the atmospheric temperature. http://www.scopestuff.com/ss_dnot.htm - Clear Skies, Kurt P.S. - Only three more days to summer! _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php