^^^^^^^^^ yeah what he said1000/120 gives you 8.3 thats the amps a 1k pulls am i correct ? so you can run 2 1k's off of one 20 amp circut just down't have them pop on at the same time . use two seperate 15 amp or better timers . make sure they have the three holes and they should be rated fo 15 amp . I am not a sparky either but i am a carpenter and my house has not burn't down yet . Like the above stated you can't go wrong with bigger stouter timers it's prolly safer in the long run .