HI,I RECENTLY BOUGHT A USED HOT TUB, IT HAS BEEN FILLED, PLUGGED IN AND TESTED, ALL SEEMS FINE EXCEPT WE HAVE YET TO TRY HEATER. THE CHAP WE BOUGHT IT FROM SAID JUST PLUG IT IN. IT HAS AN ORANGE HOUSEHOLD CABLE WITH PLUG ATTACHED. PROBLEM IS WHEN RUNNING I NOTICED WIRE GOT HOT, SOMEONE SUGGESTED WE WOULD NEED ARMORED CABLE. IS THIS SO ? IT WON'T BE LEFT PLUGGED IN WHEN NOT IN USE. OR WOULD A BREAKER BE GOOD ENOUGH. I WILL GET ELECTRICIAN IF NECESSARY, DON'T WANT ANY DANGER FOR KIDS. CHAP WE BOUGHT FROM SAID HE WAS AN ELECTRICIAN