As one of its daily deals, Amazon offers the Ecosmart ECO 27 Electric Tankless Water Heater
, model no. ECO27, for $348
with free shipping
. That's $12 under our mention from last August, the best deal we've seen, and the lowest total price we could find by $122. It features a 5.25-gpm flow rate, digital temperature control, self-modulating technology, serviceable elements, heat exchangers, and resettable thermostat. Deal ends today.