I have no idea how much they draw (they're hybrids) but use 2 12AX7s each, I believe. The CD player runs 2 6922s.
Not us but the former now-deceased owners. Quite believable. They had a C$55k sunroom built on the deck that they reputedly used and thus heated all winter to 25C (as with the rest of the house) with a spaceheater and heat from the house, reportedly slept with a bedroom window open all winter, and the heat pump was probably using auxiliary heat (heat strips).100kWh in a day seems insanely high, considering how mild your climate is; I'd be getting a Kill-A-Watt and looking into stuff.