First of all thanks for all the replies. Here is the specific claim from Bullfrog.
Watts used at 60 degrees F, Water at 101 degrees F, and cost at $.10 per kilowatt:
Bullfrog - A7L 164 watts
Hot Springs - Envoy 175 watts
Caldera - Geneva 229 watts
Sundance - Cameo 252 watts
Jacuzzi - J465 261 watts.
While this doesn't give dollar results expected from each spa, it does give a good relative comparison between the spas - IF THE DATA IS VALID.
It does state a monthly operation cost of $11.81. If this was at 60 degrees ambient and only 101 degrees spa temp, the potential savings could be significant in comparison to rival brands and lower ambient temps; possibly as much as $14 to $15 per month. This could be close to $200 per year.
This data is in Bullfrog's sales literature and states "figures published by the California Energy Commission." I would think some rival manufacturer would challenge these claims if they were not legitimate, possibly in court. Any thoughts, anyone???