Bosch Tronic Heat 3000 6.5 GPM Electric Tankless Water Heater
Bosch Tronic Heat 3000 6.5 GPM Electric Tankless Water Heater Review
The Bosch Tronic Heat 3000 is a 6.5 GPM electric tankless water heater designed for warm-climate whole-house use. 24 kW capacity from three 40-amp double-pole breakers, 100A continuous draw at 240V. The Bosch entry into the US electric tankless market — German engineering at a price point closer to value brands than to premium Stiebel Eltron.
Specs: 24 kW, UEF 0.99 (high-efficiency PID modulation), 6.5 GPM at a 35°F rise. Smooth temperature modulation at varying flow rates — a Bosch strength versus competitor brands. 5-year warranty on the heat exchanger, 1-year on parts.
The Bosch positioning is European engineering for buyers not wanting to step up to the premium Stiebel Eltron Tempra 36 price point. The Tronic Heat 3000 sits roughly $400 below the Tempra 36 with similar capacity but shorter warranty (5-year vs Stiebel's 7-year). Build quality is meaningfully above EcoSmart or Rheem RTEX but below Stiebel Eltron Tempra.
Right buyer: warm-climate primary residence wanting better engineering than the volume electric tankless brands without paying for Stiebel Eltron's premium tier. About $1,000 unit, $2,000 installed. Wrong buyer: cold-climate primary residences (capacity becomes marginal in winter), households needing lifetime warranties (EcoSmart ECO 27 is the better warranty match at lower price).