I ordered it elsewhere, we can use an extension cord (20m reel unwound course, home) as long as either of 2.5mm2 section as the son of the section in the walls, if not with 1.5mm2 wire heater there is a loss of energy but it will still work. Watch your bill of electricity (no one talks about) but in the end his months can hurt the wallet. For example a normal supply at EDF's costs 9.77 shot to do 24 hours (kwh price at EDF is 0.1372), it's huge and it consumes a little more than an oven. If you have an hour offers hollow / time points his may be interesting to put the night. These are really the only 2 drawback if lélectricité was free it would be wonderful. Oh yes it is necessary each time to reset the heater plug no need to put a timer. No seriously the only blocking its use is its electricity consumption (or price earlier) because I'm at the point rub off all power strips to turn off appliances on standby and consume the minimum possible to reduce the electricity bill.