On Jan 23, 9:44*am,
(kayostar) wrote:
responding tohttp://www.homeownershub.com/maintenance/120V-vs-240V-for-heated-floo...kayostar wrote:

I agree. The 240V would be the cheaper and more efficient to get in the
long term.

The only difference in "long term" is the tiny difference in wasted
energy
that you get from running 2X the current when using 120V. That tiny
loss
is due to the small resistance in the wire, assuming the same gauge
wire
is used. Otherwise, the costs and issues are all there on day one.
And
IMO and without doing the math, it would take a very, very long time
of
running that small bathroom floor heater for those losses to amount
to anything.

It would be helpful to also know how many watts this load actually
is. But
the core issues a

Can you use smaller wire in this case when going with 240V?
How long is that wiring and how much would you save?
Does it need to be GFCI protected? As someone pointed out
double pole GFCI is a lot more than a single pole.
Have a panel slot for a double?