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Understanding Your Hot Spot Spa's Energy Smart Features: Heater, Insulation, and SmartJet System A Hot Spot spa's energy efficiency isn't the result of one clever gadget. It's a handful of features working together, each trimming a bit of waste at a different point in the system. Knowing what those features actually do makes it much easier to spot when something's underperforming, and to make smart choices about day-to-day settings that keep your energy bill as low as the spa was designed to run … read more