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What is your cost per KWH (kilowatt hour)?
So soes that include the first fill and heating your water from tap temperature to 101?...
I agree that you typically have to compare the months based on LAST YEAR's usage, not last months for the same reason that Chas mentioned (It's common for winter electricity bills to increase simply due to weather and Nov is typically more severe than October for about 95% of the US area). So, my question would be..."How does it compare to last year's bill for the same time period?"
I think I read somewhere awhile back that most higher end spas consume about 8-12 kwhs a day.....depending on climate, settings, usage, etc. Mine uses about 11 kwhs a day in the peak of St. Louis winters. So let's just say your spa uses 10. With your $.21 a kwh cost, that would be about $60 a month.
I only moved into the home on January 18th of 2008. I had previously lived in an apartment. However, Since August, my electricity bill had been trending downward each month, only to see a drastic jump this bill. For example, August 12th's bill was $150. September was $135. October was $105. November was $95. December 12th's bill was $155. I got the spa November 3rd. My electricity bill runs from about the 12th day of the month to the 11th day of the following month. I wonder if the Spaudio Cast is drawing that much electricity. I also got rid of an old 32" picture tube TV and replaced it with an LCD 37". We did host Thanksgiving at my house for 15 people and the spa was uncovered practically the whole day for that. a $60 jump just seems like alot. When I was shocking the spa each week, I would leave the cover off for 1 1/2 hours to vent the fumes. I will try leaving it off only 45 minutes from now on.