Daniel, if I have an 8A relay to drive using the two voltage comparators and the rs latch, how can I do this.

 

Welcome to the forums.

It's nice if you don't hijack old threads, especially when they are 4 years old - http://forum.allaboutcircuits.com/showthread.php?t=6615

What voltage and current do your relay coils take to operate?

 

its a 12 V,660 ohm, 245mW relay fujitsu relay. and it is supposed to switch a 250W/120 V heater. sorry abt bringing up really old threads..but thanks for replying.