If you know the amperage and the voltage, you can find the wattage.
Amps x volts = watts
1 watt x 1 hour = 1 watt hour

"Edwin Pawlowski" wrote in message
om...

"Bob" wrote in message
...
To match
the BTUs you have now, 115 volt units, it will cost you twice as much in
electricity.

How do you figure that? Amps drops when voltage doubles, but watts is
what
we pay for.