RW> RW>> No, it's more than that. When you use 110v at 10amps to run an   
   RW> RW>> electric motor, it will cost you twice as much as a 220v motor,   
   RW> RW>> because the 220v motor will use half the amps.   
      
   RW> TW> BUT you do NOT pay for electrical power based on the Amps alone.   
      
   RW>That is true, but previously you based your figures on horsepower, now   
   RW>you're using the correct terms that I showed you.   
      
   In the Electrical Trade as far as power consumption goes Horsepower and   
   Watts are interchanglable as 1 Horsepower = 746 Watts   
      
   RW> TW> IT is the Amps tiems the Voltage so the 220 volt motor drawing 10   
   RW> TW> amps is a 2200 Watt chargable Load as is the 110 device drawing 20   
   RW> TW> amps also 2200 Watts chargable load!!   
      
   RW>You're charged in Kilowatt Hours used. It sometimes takes twice as long to   
   RW>heat a spa at 110v as it would 220v because 220v is capable of doing   
   RW>twice the work in half as much time. Not only can 220v use less wire size,   
   RW>it can do so in a longer run.   
      
   That is becasue the Heating elements are only being 1/2 powered. IE: the   
   10,000 Watt heating element becomes a 5,000 Watt element on 110 power.   
   Simple Ohms law aplication.   
      
   But still it DOES not cost twice as much to run a motor in 110 than one   
   on 220 as you implied the Motor Horsepower being the same.   
      
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