Just to clear up the sealant part. I placed sealant where the control display joins the tub. No need to remove the display. Almost like if you were caulking a baseboard to the wall. The display comes with its own sealant but its like masking tape (poor quality). I would do the same with the stereo pad.
I'm in California about 60 miles south of Sacramento. During the spring, summer , and fall my electric bill had a slight stipe of maybe $20-$30/mo. Winter has been much higher but its has been unusually colder (low 30's) this Winter. I will be able to tell next winter since I also added a Plasma and Fish Aquarium to my bill.
WINTER: I run my spa on ECN (economy) mode which only runs the heater at certain times (2 cyles at 2 hours each). May drop the actual temp setting 3-4 degrees. But when I decide to get in the spa, I change the mode to STD. It may take 30 minutes for the spa to reach its temp. By the time I change and get ready, Spa is good to go.
Remember, in STD mode the spa heater is always active so when ever the spa drops a degree from set temp the heater will turn on.
What I DON'T use in the SPA is the blower. Why? remember the blower is bringing in air (bubbles) into the spa. You got to think where the air is coming from. The air comes from the inside of your spa where all your tubing and parts are. Remember the air is warm and serves as an insulator for the spa. By removing it, it will bring in the cold air from the outside, therefor lowering your water temp and inside the compartment area. Next time, sit or place your hand on the blower outlet and feel the bubbles. Much cooler then the water.
SPRING, SUMMER, FALL: I have my SPA in ECN mode all the time. Temp may drop a few degrees here in there but most of the time it maintains set temp in ECN mode.
Of course, SLP mode is only intented if you don't get in the spa for an extented period of time. SPA heater will only kick on if the temp drops below 20 degrees below set temp to avoid freezing.
BLOWER: In the summer Calif gets hot! So it doesnt matter if I displace the air inside the spa since its hot air coming in anyways.
But all this depends where you live. If your in the colder parts of the country then ECN mode might not work for you since the temp may drop too much in the spa. If you leave in Arizona then ECN mode may work for you all the time. Just play with it and see works works best.
Of course, if you have a lot of money then all this doesnt matter and you probably bought a different spa.
Later Platinum Spa Bothers