In article ,
harry wrote:
True plus the mains transformer uses power continuously. Not just when
the bell is pressed.

Do you unplug everything in your house when not in use? Things like the
cooker which has a clock etc? If not, I'd be most surprised if a decent
bell mains power supply makes any measurable difference to your bill.

--
*If you lived in your car, you'd be home by now *

Dave Plowman London SW
To e-mail, change noise into sound.