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  1. robotrobinson

    Ultratemp ETi Hybrid Heater

    I'm thinking of getting the Pentair Hybrid next week. Has it been working for others? I'm in the SF Bay Area. I'm comfortable swimming in the pool at 7AM at pool temps down to 70, or even below. My current winter electric rate is $.52 / kwh. My gas rate is $3.18 / therm. My biggest concerns...