Eccotemp EM-4.0 4-Gallon Electric Mini-Tank
Eccotemp EM-4.0 4-Gallon Electric Mini-Tank Review
The Eccotemp EM-4.0 is a 4-gallon indoor electric mini-tank water heater, sitting between the EM-2.5 and the larger storage tanks in Eccotemp's lineup. Differs from the L-series outdoor propane units — this is indoor electric for point-of-use applications.
Specs: 4 gallons stored, 1440W heating element on 120V outlet, recovery rate ~7 gallons per hour. About 13" diameter × 19" tall. The 120V power requirement is the install advantage — works on standard household outlet without 240V circuit work.
The 4-gallon capacity covers moderate point-of-use applications. 4 gallons + 7 gph recovery = 11 gallons available in first hour. Adequate for handwash + dishwashing + brief shower (3-4 minutes at 1.5 GPM); inadequate for sustained shower demand.
Right uses: secondary bathroom in finished basement, in-law suite kitchen, pool house bathroom, garage workshop. The Eccotemp pricing positions below the comparable EcoSmart ECO MINI 4 at slightly lower price point with shorter warranty.
About $190 unit, $300-$450 installed. 3-year warranty on tank, 1-year on parts. DIY-reasonable for any homeowner with basic plumbing skill.