Replies

1. 
   DanH | Nov 24, 2008 03:45am | #1

   I'm trying to remember if a single-pole thermostat is legal on a 240V heater. If you're required to have a double-pole tstat then you'd need to run two romex cables from heater to tstat.

   Otherwise, you connect the black incoming to the white tstat wire inside the heater connection box, then connect the remaining black and white to the heater. Wrap both ends of both white wires with black electrical tape, to indicate that they're hot.

   The mark of the immature man is that he wants to die nobly for a cause, while the mark of a mature man is that he wants to live humbly for one. --Wilhelm Stekel
1. 
   silver77 | Nov 24, 2008 08:49am | #2

   Thanks Dan...I think I was trying to use a single pole tstat...bad idea as the heater is always hot.I'm switching to a 2 pole tstat...I think i've got it-black and white from breaker connect to line side of tstatblack,white and ground from tstat load side run to heater's black and white wires;ground to ground screwwrap white wires with black tape.I'm over cautious with electricity...when I was 9 my sister was electrocuted so I've always had a respect for doing it right.appreciate your help silver

2. 
   Scott | Nov 24, 2008 09:39am | #3

   >>>I'm trying to remember if a single-pole thermostat is legal on a 240V heater. In my jurisdiction it depends on if the thermostat says "Off". "Off" means all conductors are cold, which in a 240V situation would require a double pole switch.If the thermostat has no "Off" indicator then it's OK to use a single pole thermostat, but I would advise an installer to use red NMD wire, or at least mark both conductors to indicate voltage present.Scott.Always remember those first immortal words that Adam said to Eve, “You’d better stand back, I don’t know how big this thing’s going to get.”